TY  - JOUR
A1  - Fischer, Jan-Thomas
A1  - Kowalski, Julia
A1  - Pudasaini, Shiva P.
A1  - Miller, S. A.
T1  - Dynamic Avalanche Modeling in Natural Terrain
JF  - International Snow Science Workshop, Davos 2009, Proceedings ; Proc. ISSW 2009
N2  - The powerful avalanche simulation toolbox RAMMS (Rapid Mass Movements) is based on a depth-averaged
hydrodynamic system of equations with a Voellmy-Salm friction relation. The two empirical friction parameters
μ and �  correspond to a dry Coulomb friction and a viscous resistance, respectively. Although μ and � lack a
proper physical explanation, 60 years of acquired avalanche data in the Swiss Alps made a systematic calibration
possible. RAMMS can therefore successfully model avalanche flow depth, velocities, impact pressure and run
out distances. Pudasaini and Hutter (2003) have proposed extended, rigorously derived model equations that
account for local curvature and twist. A coordinate transformation into a reference system, applied to the actual
mountain topography of the natural avalanche path, is performed. The local curvature and the twist of the
avalanche path induce an additional term in the overburden pressure. This leads to a modification of the Coulomb
friction, the free-surface pressure gradient, the pressure induced by the channel, and the gravity components
along and normal to the curved and twisted reference surface. This eventually guides the flow dynamics and
deposits of avalanches. In the present study, we investigate the influence of curvature on avalanche flow in
real mountain terrain. Simulations of real avalanche paths are performed and compared for the different models
approaches. An algorithm to calculate curvature in real terrain is introduced in RAMMS. This leads to a curvature
dependent friction relation in an extended version of the Voellmy-Salm model equations. Our analysis provides
yet another step in interpreting the physical meaning and significance of the friction parameters used in the
RAMMS computational environment.
KW  - snow
KW  - avalanche
Y1  - 2009
SP  - 448
EP  - 452
ER  - 
TY  - CHAP
A1  - Korsch, Helge
A1  - Dafnis, Athanasios
A1  - Reimerdes, Hans-Günther
A1  - Braun, Carsten
A1  - Ballmann, Josef
T1  - Dynamic qualification of the HIRENASD elastic wing model
T2  - Motto: Luft- und Raumfahrt: Lehre, Forschung, Industrie - gemeinsam innovativ. Deutscher Luft- und Raumfahrtkongress 2006 : Braunschweig, 06. bis 09. November 2006. Jahrbuch / Deutsche Gesellschaft für Luft- und Raumfahrt. 2006
Y1  - 2006
SP  - 1441
EP  - 1450
PB  - Dt. Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth (DGLR)
CY  - Bonn
ER  - 
TY  - GEN
A1  - Kowalski, Julia
T1  - Dynamics of Granular Material Avalanches and Numerical Approximations of Savage-Hutter Models
Y1  - 2004
N1  - Diploma Thesis, University of Augsburg
ER  - 
TY  - BOOK
A1  - Wahle, Michael
T1  - Dynamik : Kinematik und Kinetik
Y1  - 1998
SN  - 3-89653-390-8
N1  - Die zwei Bände der ersten Auflage in einem Band.
PB  - Verl. Mainz
CY  - Aachen
ET  - 2. Aufl.
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Dynamik der Fahrzeuge : Längsdynamik. - 5. Aufl., [Umdruck]. - (Angewandte Thermodynamik und Verbrennungstechnik)
Y1  - 2006
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Schildt, Philipp
A1  - Marzocca, Pier
A1  - Braun, Carsten
A1  - Dahmann, Peter
A1  - Keimer, Jona
T1  - Effects of atmospheric excitation on vibration based condition monitoring methods for hybrid-electric aircraft propulsion systems
T2  - AIAC 2018: 18th Australian International Aerospace Congress: HUMS - 11th Defence Science and Technology (DST) International Conference on Health and Usage Monitoring (HUMS 2019): ISSFD - 27th International Symposium on Space Flight Dynamics (ISSFD)
Y1  - 2019
SN  - 9781925627213
SP  - 923
EP  - 928
ER  - 
TY  - JOUR
A1  - Havermann, Marc
T1  - Effects of the shock tube open-end shape on vortex loops released from it / Kainuma, M. ; Havermann, M. ; Sun, M. ; Takayama, K.
JF  - Shock Waves : Proceedings of the 24th International Symposium on Shock Waves Beijing, China July 11-16, 2004 / edited by Z. Jiang
Y1  - 2005
SN  - 978-3-540-22497-6
SP  - 505
EP  - 510
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Englhard, Markus
A1  - Weber, Tobias
A1  - Arent, Jan-Christoph
T1  - Efficiency enhancement for CFRP-Prepregautoclave manufacturing by means of simulation-assisted loading optimization
T2  - Proceedings of SAMPE Europe Conference 2021
N2  - A new method for improved autoclave loading within the restrictive framework of helicopter manufacturing is proposed. It is derived from experimental and numerical studies of the curing process and aims at optimizing tooling positions in the autoclave for fast and homogeneous heat-up. The mold positioning is based on two sets of information. The thermal properties of the molds, which can be determined via semi-empirical thermal simulation. The second information is a previously determined distribution of heat transfer coefficients inside the autoclave. Finally, an experimental proof of concept is performed to show a cycle time reduction of up to 31% using the proposed methodology.
Y1  - 2021
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Biele, Jens
A1  - Boden, Ralf
A1  - Ceriotti, Matteo
A1  - Cordero, Federico
A1  - Dachwald, Bernd
A1  - Dumont, Etienne
A1  - Grimm, Christian
A1  - Herčík, David
A1  - Herique, Alain
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Koch, Aaron
A1  - Kofman, Wlodek
A1  - Koncz, Alexander
A1  - Krause, Christian
A1  - Lange, Caroline
A1  - Lichtenheldt, Roy
A1  - Maiwald, Volker
A1  - Mikschl, Tobias
A1  - Mikulz, Eugen
A1  - Montenegro, Sergio
A1  - Pelivan, Ivanka
A1  - Peloni, Alessandro
A1  - Plettemeier, Dirk
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seboldt, Wolfgang
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Sznajder, Maciej
A1  - Tardivel, Simon
A1  - Toth, Norbert
A1  - Wejmo, Elisabet
A1  - Wolff, Friederike
A1  - Ziach, Christian
T1  - Efficient massively parallel prospection for ISRU by multiple near-earth asteroid rendezvous using near-term solar sails and'now-term'small spacecraft solutions
T2  - 2nd Asteroid Science Intersections with In-Space Mine Engineering – ASIME 2018
N2  - Physical interaction with small solar system bodies (SSSB) is key for in-situ resource utilization (ISRU). The design of mining missions requires good understanding of SSSB properties, including composition, surface and interior structure, and thermal environment. But as the saying goes "If you've seen one asteroid, you've seen one Asteroid": Although some patterns may begin to appear, a stable and reliable scheme of SSSB classification still has to be evolved. Identified commonalities would enable generic ISRU technology and spacecraft design approaches with a high degree of re-use. Strategic approaches require much broader in-depth characterization of the SSSB populations of interest to the ISRU community. The DLR-ESTEC GOSSAMER Roadmap Science Working Groups identified target-flexible Multiple Near-Earth asteroid (NEA) Rendezvous (MNR) as one of the missions only feasible with solar sail propulsion, showed the ability to access any inclination and a wide range of heliocentric distances as well as continuous operation close to Earth's orbit where low delta-v objects reside.
Y1  - 2018
N1  - 2nd Asteroid Science Intersections with In-Space Mine Engineering – ASIME 2018
16-17 April 2018, Belval, Luxembourg
SP  - 1
EP  - 33
ER  - 
TY  - BOOK
A1  - Braun, Carsten
T1  - Ein modulares Verfahren für die numerische aeroelastische Analyse von Luftfahrzeugen
N2  - Aachen, Techn. Hochschule, Diss., 2007
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Schönwald, J.
T1  - Eine neue Brandsimulationsvorrichtung
JF  - vfdb-Zeitschrift. 51 (2002), H. 3
Y1  - 2002
SN  - 0042-1804
SP  - 91
EP  - 93
ER  - 
TY  - JOUR
A1  - Blome, Hans-Joachim
T1  - Eine Reise an die Grenzen von Raum und Zeit. Wie die Raumfahrt unser Bild vom Kosmos erweitert.
JF  - DLR- Nachrichten. Mitteilungen des Deutschen Zentrums für Luft- und Raumfahrt. 90 (1998)
Y1  - 1998
SN  - 0937-0420
N1  - Sonderausgabe zum Tag der Raumfahrt 20.8.1998
SP  - 20
EP  - 29
ER  - 
TY  - JOUR
A1  - Dahmann, Peter
A1  - Mager, M.
T1  - Einfluß der Zusammensetzung der abzuscheidenden Verschmutzung auf die Abscheideleistung von Hydraulikfiltern
JF  - Ölhydraulik und Pneumatik. 38 (1994), H. 4
Y1  - 1994
SN  - 0341-2660
SP  - 212
EP  - 214
ER  - 
TY  - JOUR
A1  - Mertens, Josef
T1  - Einige herausragende Ergebnisse des Technologieprogramms "Reduktion des Aerodynamischen Widerstands (RaWid)"
JF  - DGLR-Jahrbuch 1999 Bd. 3
Y1  - 1999
N1  - DGLR-JT99-047
SP  - 1461
EP  - 1468
ER  - 
TY  - BOOK
A1  - Cordewiner, Hans-Josef
T1  - Einsatz und Entwicklung der Datenverarbeitung im Bereich der Konstruktion
Y1  - 1982
N1  - Als Ms. gedr.
PB  - Zentralbibliothek d. Kernforschungsanlage
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Peterson, Leif Arne
A1  - Röth, Thilo
A1  - Uibel, Thomas
T1  - Einsatz von Holzwerkstoffen in Fahrzeugstrukturen
JF  - Bauen mit Holz
Y1  - 2017
SN  - 0005-6545
N1  - gedruckt in der Bereichsbibliothek Bayernallee
IS  - 3
SP  - 32
EP  - 38
PB  - Bruderverlag
CY  - Köln
ER  - 
TY  - THES
A1  - Frotscher, Ralf
T1  - Electromechanical modeling and simulation of thin cardiac tissue constructs - smoothed FEM applied to a biomechanical plate problem
Y1  - 2016
N1  - Duisburg, Essen, Universität Duisburg-Essen, Diss., 2016
ER  - 
TY  - PAT
A1  - Pischinger, Martin
A1  - Esch, Thomas
A1  - Duesmann, Klaus
T1  - Elektromagnetischer Aktuator mit gelenkig abgestützter Rückstellfeder
N2  - Die Erfindung betrifft einen elektromagnetischen Aktuator zur Betätigung eines Stellgliedes (7) mit wenigstens einem gesteuert bestrombaren Elektromagneten (1, 2) und einem mit dem Stellglied (7) in Wirkverbindung stehenden Anker (5), der bei Bestromung des Elektromagneten (1, 2) gegen die Kraft wenigstens einer an einem Gehäuse (12) abgestützten Rückstellfeder (10) an der Polfläche (3, 4) des Elektromagneten (1, 2) zur Anlage kommt, und daß zumindest der Anker (5) über eine sphärische Gelenkanordnung (11) auf der Rückstellfeder (10) abgestützt ist.
Y1  - 2023
N1  - Patent DE000019822907B4 2006.07.27
ER  - 
TY  - RPRT
A1  - Hebel, Christoph
A1  - Merkens, Torsten
A1  - Feyerl, Günter
A1  - Kemper, Hans
A1  - Busse, Daniel
T1  - Elektromobilität - Verbundprojekt "COSTARTebus": Comprehensive strategy to accelerate the integration of electric-buses into existing public transport systems - Teilprojekt A : Berichtszeitraum: 01.01.2018-31.10.2020
Y1  - 2021
N1  - Förderkennzeichen BMVI 03EMEN10A
Verbundnummer 01182550
PB  - Fachhochschule Aachen
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Schmitz, Günter
T1  - Elektronik : Grundlagen der Elektronik für Ingenieurstudenten
Y1  - 2011
SN  - 978-87-7681-832-6
N1  - nach Registrierung frei zugänglich
PB  - Ventus Publ.
CY  - Frederiksberg
ER  - 
TY  - BOOK
A1  - Schmitz, Günter
T1  - Elektronik im Kraftfahrzeug : Innovationen bei System und Komponenten ; mit 7 Tabellen / Hrsg.: Schmitz, Günter
Y1  - 2012
SN  - 978-3-8169-3110-2
N1  - Haus der Technik ; Bd. 123
PB  - expert-Verl.
CY  - Renningen
ER  - 
TY  - BOOK
A1  - Schmitz, Günter
T1  - Elektrotechnik : Grundlagen der Elektrotechnik für Ingenieur-Studenten
Y1  - 2011
SN  - 978-87-7681-786-2
N1  - nach Registrierung frei zugänglich
PB  - Ventus Publ.
CY  - Frederiksberg
ER  - 
TY  - BOOK
A1  - Schmitz, Günter
T1  - Elektrotechnik für Ingenieurstudenten nichtelektrotechnischer Fachrichtungen. Aufgabensammlung, [Übungs- und Klausuraufgaben]
Y1  - 2013
SN  - 978-1-482721-47-8
PB  - Schmitz
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Schmitz, Günter
T1  - Elektrotechnik für Ingenieurstudenten nichtelektrotechnischer Fachrichtungen. Hauptbd.: Gleichspannungstechnik, Wechselspannungstechnik, Elektrische Maschinen
Y1  - 2013
SN  - 978-1-481830-60-7
PB  - Schmitz
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Götten, Falk
A1  - Finger, Felix
A1  - Braun, Carsten
A1  - Havermann, Marc
A1  - Bil, C.
A1  - Gomez, F.
T1  - Empirical Correlations for Geometry Build-Up of Fixed Wing Unmanned Air Vehicles
T2  - APISAT 2018: The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018)
N2  - The results of a statistical investigation of 42 fixed-wing, small to medium sized (20 kg−1000 kg) reconnaissance unmanned air vehicles (UAVs) are presented. Regression analyses are used to identify correlations of the most relevant geometry dimensions with the UAV’s maximum take-off mass. The findings allow an empirical based geometry-build up for a complete unmanned aircraft by referring to its take-off mass only. This provides a bridge between very early design stages (initial sizing) and the later determination of shapes and dimensions. The correlations might be integrated into a UAV sizing environment and allow designers to implement more sophisticated drag and weight estimation methods in this process. Additional information on correlation factors for a rough drag estimation methodology indicate how this technique can significantly enhance the accuracy of early design iterations.
KW  - Unmanned Air Vehicle
KW  - Geometry
KW  - Correlations
KW  - Statistics
KW  - Drag
Y1  - 2019
SN  - 978-981-13-3305-7
U6  - http://dx.doi.org/10.1007/978-981-13-3305-7_109
N1  - APISAT 2018 - Asia-Pacific International Symposium on Aerospace Technology. 16-18 October 2018. Chengdu, China.


Lecture Notes in Electrical Engineering (LNEE, volume 459)
SP  - 1365
EP  - 1381
PB  - Springer
CY  - Singapore
ER  - 
TY  - CHAP
A1  - Konstantinidis, K.
A1  - Dachwald, Bernd
A1  - Ohndorf, A.
A1  - Dykta, P.
A1  - Voigt, K.
A1  - Förstner, R.
T1  - Enceladus explorer (ENEX): A lander mission to probe subglacial water pockets on Saturn's moon enceladus for life
T2  - 64th International Astronautical Congress 2013 (IAC 2013) : Beijing, China, 23 - 27 September 2013. (Proceedings of the International Astronautical Congress, IAC ; 2)
Y1  - 2013
SN  - 978-1-62993-909-4
SP  - 1340
EP  - 1350
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Feldmann, Marco
A1  - Espe, Clemens
A1  - Plescher, Engelbert
A1  - Konstantinidis, K.
A1  - Forstner, R.
T1  - Enceladus explorer - A maneuverable subsurface probe for autonomous navigation through deep ice
T2  - 63rd International Astronautical Congress 2012, IAC 2012; Naples; Italy; 1 October 2012 through 5 October 2012. (Proceedings of the International Astronautical Congress, IAC ; 3)
Y1  - 2012
SN  - 978-1-62276-979-7
SP  - 1756
EP  - 1766
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - RPRT
A1  - Blandford, Daniel
A1  - Dachwald, Bernd
A1  - Digel, Ilya
A1  - Espe, Clemens
A1  - Feldmann, Marco
A1  - Francke, Gero
A1  - Hiecke, Hannah
A1  - Kowalski, Julia
A1  - Lindner, Peter
A1  - Plescher, Engelbert
A1  - Schöngarth, Sarah
T1  - Enceladus Explorer : Schlussbericht —  Version: 1.0
Y1  - 2015
U6  - http://dx.doi.org/10.2314/GBV:86319950X
N1  - Förderkennzeichen BMWi 50NA1206
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Rupp, Matthias
A1  - Kuperjans, Isabel
A1  - Schulze, Sven
ED  - Berns, Karsten
T1  - Energetische und ökologische Bewertung hybrider Antriebe im städtischen Busverkehr
T2  - Commercial vehicle technology 2016 : proceedings of the 4th Commercial Vehicle Technology Symposium (CVT 2016), March 8-10, 2016, University of Kaiserslautern, Kaiserslautern, Germany
N2  - In Anbetracht weltweit zunehmend strengerer klimapolitischer
Ziele steigt auch der Druck für Nutzfahrzeughersteller, effizientere und umweltfreundlichere
Technologien zu entwickeln. Den Blick bei der Bewertung dieser
ausschließlich auf die Fahrzeugnutzung zu richten, ist längst nicht mehr zufriedenstellend.
Im Rahmen dieser Analyse wird ein gegenwärtig auf dem Markt erwerblicher
und in deutschen Städten bereits seit Jahren betriebener Hybridbus
energetisch und ökologisch mit einem konventionell angetriebenen, nahezu baugleichen
Modell entlang des Lebensweges bewertet.
Nach Definition von Ziel und Untersuchungsrahmen wird ein Überblick auf bereits
durchgeführte Lebenszyklusanalysen zu Hybridbussen im Stadtverkehr gegeben
und Schlussfolgerungen für die anschließende Analyse abgeleitet. Diese
wird im Rahmen einer energetischen und ökologischen Bewertung beider Produktsysteme
anhand der Parameter "Primärenergieeinsatz" und "CO2äq Emissionen"
praktiziert. Der Fahrzeugrumpf beider Fahrzeuge des gleichen Modells
wird dabei als einheitlich angenommen, sodass bei dem Vergleich der Herstellung
vereinfacht nur die sich unterscheidenden Komponenten des Antriebstranges
berücksichtigt werden. Die Resultate der Wirkungsabschätzung werden als
Differenz des Hybridbusses gegenüber dem Referenzfahrzeug über die einzelnen
Lebenszyklusphasen dargestellt. Schließlich werden Prognosen getroffen, ab
welcher Strecke die bei der Herstellung erzeugten höheren CO2äq Emissionen
des Hybridantriebstranges gegenüber dem Referenzmodell ausgeglichen werden.
Y1  - 2016
SP  - 227
EP  - 237
PB  - Shaker
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Dahl, Günter
A1  - Suttrop, F.
T1  - Engine control and low-NO(x) combustion for hydrogen fuelled aircraft gas turbines
JF  - International Journal of Hydrogen Energy. 23 (1998), H. 8
Y1  - 1998
SN  - 0360-3199
SP  - 695
EP  - 704
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Seiler, F.
A1  - George, A.
A1  - Leopold, F.
T1  - Enhanced Doppler Picture Velocimetry (DPV) for Planar Velocity Measurements in High-Speed Shock Tunnel Flow / Seiler, F. ; George, A. ; Leopold, F. ; Havermann, M. ; Srulijes, J.
JF  - 10th International Symposium on Flow Visualization : Kyōto, Japan, August 26 - 29, 2002 / sponsored by International Flow Visualization Society . [Chairman:] Toshio Kobayashi
Y1  - 2002
SN  - 4906497829
N1  - International Symposium on Flow Visualization ; (10 ; 2002.08.26-29 ; Kyōto)
PB  - Visualization Society of Japan
CY  - Kyoto
ER  - 
TY  - JOUR
A1  - Tekin, Nurettin
A1  - Ashikaga, Mitsugu
A1  - Horikawa, Atsushi
A1  - Funke, Harald
T1  - Enhancement of fuel flexibility of industrial gas turbines by development of innovative hydrogen combustion systems
JF  - Gas for energy
N2  - For fuel flexibility enhancement hydrogen represents a possible alternative gas turbine fuel within future low emission power generation, in case of hydrogen production by the use of renewable energy sources such as wind energy or biomass. Kawasaki Heavy Industries, Ltd. (KHI) has research and development projects for future hydrogen society; production of hydrogen gas, refinement and liquefaction for transportation and storage, and utilization with gas turbine / gas engine for the generation of electricity. In the development of hydrogen gas turbines, a key technology is the stable and low NOx hydrogen combustion, especially Dry Low Emission (DLE) or Dry Low NOx (DLN) hydrogen combustion. Due to the large difference in the physical properties of hydrogen compared to other fuels such as natural gas, well established gas turbine combustion systems cannot be directly applied for DLE hydrogen combustion. Thus, the development of DLE hydrogen combustion technologies is an essential and challenging task for the future of hydrogen fueled gas turbines. The DLE Micro-Mix combustion principle for hydrogen fuel has been in development for many years to significantly reduce NOx emissions. This combustion principle is based on cross-flow mixing of air and gaseous hydrogen which reacts in multiple miniaturized “diffusion-type” flames. The major advantages of this combustion principle are the inherent safety against flashback and the low NOx-emissions due to a very short residence time of the reactants in the flame region of the micro-flames.
Y1  - 2018
IS  - 2
PB  - Vulkan-Verlag
CY  - Essen
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Lieb, R.-D.
T1  - Entrauchung komplexer Räumlichkeiten : Strategien und Steuerungen
JF  - Tür-Tor-Fenster-Report : Fachzeitschrift für die Technologien von Türen, Toren und Fenstern. 25 (2005), H. 3
Y1  - 2005
SN  - 0724-7702
SP  - 27
EP  - 29
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Schwarz, N.
T1  - Entrauchung über Seitenwände
JF  - vfdb-Zeitschrift. 52 (2003), H. 1
Y1  - 2003
SN  - 0042-1804
SP  - 25
EP  - 35
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
T1  - Entrauchungsnachweise. Kritische Diskussion von Methoden des Brandschutzingenieurwesens
JF  - vfdb-Zeitschrift. 50 (2001), H. 3
Y1  - 2001
SN  - 0042-1804
SP  - 99
EP  - 104
ER  - 
TY  - RPRT
A1  - Thoma, Andreas
A1  - Laarmann, Lukas
A1  - Merkens, Torsten
A1  - Franzke, Till
A1  - Möhren, Felix
A1  - Buttermann, Lilly
A1  - van der Weem, Dirk
A1  - Fischer, Maximilian
A1  - Misch, Philipp
A1  - Böhme, Mirijam
A1  - Röth, Thilo
A1  - Hebel, Christoph
A1  - Ritz, Thomas
A1  - Franke, Marina
A1  - Braun, Carsten
T1  - Entwicklung eines intermodalen Mobilitätskonzeptes für die Pilotregion NRW/Rhein-Maas Euregio und Schaffung voller Kundenakzeptanz durch Transfer von Standards aus dem PKW-Bereich auf ein Flugtaxi : Schlussbericht : Projektakronym: SkyCab (Kategorie B) : Laufzeit in Monaten: 6 : Hauptthema: Kategorie B: Innovative Ideen mit Bezug zu UAS/Flugtaxis
Y1  - 2020
N1  - Förderkennzeichen BMVI 45UAS1027A-F
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Kallweit, Stephan
A1  - Schleupen, Josef
A1  - Dahmann, Peter
A1  - Bagheri, Mohsen
A1  - Engemann, Heiko
T1  - Entwicklung eines Kletterroboters zur Diagnose und Instandsetzung von Windenergieanlagen (SMART)
T2  - Automatisierung im Fokus von Industrie 4.0 : Tagungsband AALE 2016 ; 13. Fachkonferenz, Lübeck
Y1  - 2016
SN  - 978-3-8356-7312-0
N1  - AALE-Konferenz <13., 2016, Lübeck>
SP  - 207
EP  - 212
PB  - DIV Deutscher Industrieverlag GmbH
CY  - München
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Entwicklung sicherer und wartbarer Software für den Eurofighter
JF  - Soldat und Technik : Strategie und Technik, Sicherheit (1996)
Y1  - 1996
SN  - 0038-0989
SP  - 663
EP  - 668
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Bosse, Elke
A1  - Mergner, Julia
A1  - Jänsch, Vanessa
T1  - Entwicklung studienrelevanter Kompetenzen im Zusammenspiel mit Studieneinstiegsangeboten
T2  - KoBF-Auswertungsworkshop 31.05.-01.06.2017
Y1  - 2017
ER  - 
TY  - CHAP
A1  - Röth, Thilo
A1  - Kampker, Achim
A1  - Reisgen, Uwe
A1  - Hameyer, Kay
A1  - De Doncker, R. W.
T1  - Entwicklung von elektrofahrzeugspezifischen Systemen
T2  - Elektromobilität : Grundlagen einer Zukunftstechnologie
N2  - Die Fahrzeugkarosserie bildet als größte funktionale und organisatorische Systemeinheit ein zentrales Kompetenzfeld der OEMs. Für den Fahrzeughersteller stellt der Karosserierohbau eine hohe Kernkompetenz sowohl in der Produktentwicklung als auch in der Produktion dar. Neue, innovative Karosseriebauweisen, bspw. aufgrund eines neuen Fahrzeugkonzeptes oder neuer Anforderungen, bedeuten für den OEM auch gleichzeitig die intensive Auseinandersetzung mit Kompetenzfokussierung bzw. Wertschöpfungsverlagerungen.
Y1  - 2013
SN  - 978-3-642-31986-0
SP  - 235
EP  - 336
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Röth, Thilo
A1  - Deutskens, Christoph
A1  - Kreisköther, Kai
A1  - Heimes, Heiner Hans
A1  - Schittny, Bastian
A1  - Ivanescu, Sebastian
A1  - Kleine Büning, Max
A1  - Reinders, Christian
A1  - Wessels, Saskia
A1  - Haunreiter, Andreas
A1  - Reisgen, Uwe
A1  - Thiele, Regina
A1  - Hameyer, Kay
A1  - Doncker, Rik W. de
A1  - Sauer, Uwe
A1  - Hoek, Hauke van
A1  - Hübner, Mareike
A1  - Hennen, Martin
A1  - Stolze, Thilo
A1  - Vetter, Andreas
A1  - Hagedorn, Jürgen
A1  - Müller, Dirk
A1  - Rewitz, Kai
A1  - Wesseling, Mark
A1  - Flieger, Björn
T1  - Entwicklung von elektrofahrzeugspezifischen Systemen
T2  - Elektromobilität
N2  - Die Batterie ist eine der absolut zentralen Komponenten des Elektrofahrzeugs. Die serielle Entwicklung und Produktion dieser Batterien und die Verbesserung der Leistungen wird entscheidend für den Erfolg der Elektromobilität sein. Die Batterie ist jedoch nicht das einzige elektrofahrzeugspezifische System, das neu entwickelt, umkonzipiert oder verbessert werden muss. So sind ebenso die Entwicklung der neuen Fahrzeugstruktur sowie des elektrifizierten Antriebsstranges Teil dieses Kapitels. Weiterhin wird ein Blick auf das bedeutende Thema des Thermomanagements geworfen.
Y1  - 2018
SN  - 978-3-662-53137-2
U6  - http://dx.doi.org/10.1007/978-3-662-53137-2_6
SP  - 279
EP  - 386
PB  - Springer Vieweg
CY  - Berlin, Heidelberg
ER  - 
TY  - JOUR
A1  - Hoeveler, Bastian
A1  - Janser, Frank
A1  - Bindewald, Thorsten
A1  - Gebhardt, Andreas
T1  - Entwurf, Fertigung und Untersuchung eines Windkanalmodells eines innovativen, senkrechtstartenden Kleinflugzeuges
JF  - RTejournal - Forum für Rapid Technologie
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0009-2-42921
SN  - 1614-0923
IS  - 12
SP  - 1
EP  - 5
PB  - Fachhochschule Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Tamaldin, Noreffendy
A1  - Esch, Thomas
A1  - Tonoli, Andrea
A1  - Reisinger, Karl Heinz
A1  - Sprenger, Hanna
A1  - Razuli, Hisham
T1  - ERASMUS+ United CBHE Automotive International Collaboration from European to South East Asia
T2  - Proceedings of the 2nd African International Conference on Industrial Engineering and Operations Management
N2  - The industrial revolution especially in the IR4.0 era have driven many states of the art technologies to be introduced.
The automotive industry as well as many other key industries have also been greatly influenced. The rapid development of automotive industries in Europe have created wide industry gap between European Union (EU) and developing countries such as in South East Asia (SEA). Indulging this situation, FH JOANNEUM, Austria together with European partners from FH Aachen, Germany and Politecnico di Torino, Italy are taking initiative to close down the gap utilizing the Erasmus+ United Capacity Building in Higher Education grant from EU. A consortium was founded to engage with automotive technology transfer using the European framework to Malaysian, Indonesian and Thailand Higher Education Institutions (HEI) as well as automotive industries in respective countries. This could be achieved by establishing Engineering Knowledge Transfer Unit (EKTU) in respective SEA institutions guided by the industry partners in their respective countries. This EKTU could offer updated, innovative and high-quality training courses to increase graduate’s employability in higher education institutions and strengthen relations between HEI and the wider economic and social environment by addressing University-industry cooperation which is the regional priority for Asia. It is expected that, the Capacity Building Initiative would improve the quality of higher education and enhancing its relevance for the labor market and society in the SEA partners. The outcome of this project would greatly benefit the partners in strong and complementary partnership targeting the automotive industry and enhanced larger scale international cooperation between the European and SEA partners. It would also prepare the SEA HEI in sustainable partnership with Automotive industry in the region as a mean of income generation in the future.
KW  - European Framework and South East Asia
KW  - Technology Transfer
KW  - Capacity Building Higher Education
KW  - Malaysian Automotive Industry
Y1  - 2020
SN  - 978-1-7923-6123-4
SN  - 2169-8767
N1  - 2nd African International Conference on Industrial Engineering and Operations Management; Harare, Zimbabwe, December 7-10, 2020
SP  - 2970
EP  - 2972
PB  - IEOM Society International
CY  - Southfield
ER  - 
TY  - CHAP
A1  - Pielen, Michael
A1  - Röth, Thilo
A1  - Flatten, T.
ED  - Proff, H.
T1  - Erfolgsfaktoren künftiger Geschäftsmodelle von urbanen, geteilten Mobilitätsdienstleistungen
T2  - Mobilität und digitale Transformation.  (9. Wissenschaftsforum Mobilität. Tagungsband)
N2  - Digitalisierung bezeichnet die Nutzung großer Datenmengen, die zu einer umfassenden Vernetzung aller Bereiche der Wirtschaft und Gesellschaft führen wird (BMWi, 2015 und ähnlich Köhler/Wollschläger, 2014: 79). Sie umfasst die Erhebung von analogen Informationen („Big Data“ in einem engen Sinne; z.B. O´Leary, 2013), ihre Speicherung in einem digitaltechnischen System (lokale Speicherung oder „Cloud Computing“ durch die Weiterentwickelung des Internets; z.B. Hashem et al., 2015: 101), die Analyse und Interpretation sowie den Transfer in andere Systeme („Internet der Dinge“ bzw. „Internet of Things“; z.B. Ashton, 2009).
Y1  - 2018
SN  - 978-3-658-20779-3
U6  - http://dx.doi.org/10.1007/978-3-658-20779-3_2
SP  - 435
EP  - 448
PB  - Springer Gabler
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Knutzen, S.
ED  - Mai, Andreas
T1  - Erfolgsstrategien für organisationales Lernen
T2  - Hochschulwege 2015 : Wie verändern Projekte die Hochschulen? ; Dokumentation der Tagung in Weimar im März 2015
Y1  - 2017
SN  - 978-3-7439-1763-7
SP  - 91
EP  - 108
PB  - tredition
CY  - Hamburg
ER  - 
TY  - CHAP
A1  - Schirra, Julian
A1  - J., Watmuff
T1  - Euler-based induced drag estimation for highly non-planar lifting systems during conceptional design
T2  - 62. Deutscher Luft- und Raumfahrtkongress 2013 : 10. - 12. September 2032, Stuttgart, Haus der Wirtschaft
Y1  - 2013
SP  - 1
EP  - 8
PB  - Dt. Gesellschaft für Luft- und Raumfahrt
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Thoma, Andreas
A1  - Fisher, Alex
A1  - Bertrand, Olivier
A1  - Braun, Carsten
ED  - Vouloutsi, Vasiliki
ED  - Mura, Anna
ED  - Tauber, Falk
ED  - Speck, Thomas
ED  - Prescott, Tony J.
ED  - Verschure, Paul F. M. J.
T1  - Evaluation of possible flight strategies for close object evasion from bumblebee experiments
T2  - Living Machines 2020: Biomimetic and Biohybrid Systems
KW  - Obstacle avoidance
KW  - Bumblebees
KW  - Flight control
KW  - UAV
KW  - MAV
Y1  - 2020
SN  - 978-3-030-64312-6
U6  - http://dx.doi.org/10.1007/978-3-030-64313-3_34
N1  - 9th International Conference, Living Machines 2020, Freiburg, Germany, July 28–30, 2020, Proceedings
SP  - 354
EP  - 365
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Carnelli, I.
A1  - Vasile, M.
T1  - Evolutionary Neurocontrol as a Novel Method for Low-Thrust Gravity Assist Trajectory Optimization / I. Carnelli ; B. Dachwald ; M. Vasile
JF  - Proceedings of the Twenty-Fifth International Symposium on Space Technology and Science (Selected papers) : Kanazawa, [June 4 through June 11, 2006, at Kanazawa-shi Kanko Kaikan in Kanazawa city] / [Japan Society for Aeronautical and Space Sciences. Kohtaro Matsumoto [ed.-in-chief]
Y1  - 2006
SN  - 4-99005-002-9
N1  - International Symposium on Space Technology and Science <25, 2006, Kanazawa> ; ISTS 2006-d-46
SP  - 569
EP  - 574
PB  - JSASS
CY  - Tokyo
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Carnelli, Ian
A1  - Vasile, Massimiliano
T1  - Evolutionary Neurocontrol: A Novel Method for Low-Thrust Gravity-Assist Trajectory Optimization / Carnelli, Ian ; Dachwald, Bernd ; Vasile, Massimiliano
JF  - Journal of guidance control and dynamics. 32 (2009), H. 2
Y1  - 2009
SN  - 0731-5090
SP  - 616
EP  - 625
PB  - AIAA
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Evolutionary Neurocontrol: A Smart Method for Global Optimization of Low-Thrust Trajectories
JF  - 22nd AIAA Applied Aerodynamics Conference and Exhibit - AIAA/AAS Astrodynamics Specialist Conference and Exhibit - AIAA Guidance, Navigation, and Control Conference and Exhibit - AIAA Modeling and Simulation Technologies Conference and Exhibit - AIAA Atmospheric Flight Mechanics Conference and Exhibit : 16 - 19 August 2004, Providence, Rhode Island / American Institute of Aeronautics and Astronautics. - (AIAA meeting papers on disc ; 2004,14-15)
Y1  - 2004
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; AIAA/AAS Astrodynamics Specialist Conference and Exhibit <2004, Providence, RI> ; AIAA paper number: AIAA-2004-5405
PB  - American Inst. of Aeronautics and Astronautics
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Olaru, Alexandra Maria
A1  - Kowalski, Julia
A1  - Sethi, Vaishali
A1  - Blümich, Bernhard
T1  - Exchange relaxometry of flow at small Péclet numbers in a glass bead pack
JF  - Journal of Magnetic Resonance (JMR)
N2  - In this paper we consider low Péclet number flow in bead packs. A series of relaxation exchange experiments has been conducted and evaluated by ILT analysis. In the resulting correlation maps, we observed a collapse of the signal and a translation towards smaller relaxation times with increasing flow rates, as well as a signal tilt with respect to the diagonal. In the discussion of the phenomena we present a mathematical theory for relaxation exchange experiments that considers both diffusive and advective transport. We perform simulations based on this theory and discuss them with respect to the conducted experiments.
KW  - NMR exchange relaxometry
KW  - Low-field NMR
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.jmr.2012.04.015
SN  - 1096-0856
VL  - 220
SP  - 32
EP  - 44
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Keinz, Jan
A1  - Börner, Sebastian
A1  - Haj Ayed, A.
A1  - Kusterer, K.
A1  - Tekin, N.
A1  - Kazari, M.
A1  - Kitajima, J.
A1  - Horikawa, A.
A1  - Okada, K.
ED  - Song, Seung Jin
T1  - Experimental and numerical characterization of the dry low NOx micromix hydrogen combustion principle at increased energy density for industrial hydrogen gas turbine applications
T2  - Combustion, fuels and emissions : proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2013 ; June 3 - 7, 2013, San Antonio, Texas, USA ; vol. 1
Y1  - 2013
SN  - 978-0-7918-5510-2
N1  - Paper No: GT2013-94771
SP  - V001T04A055
PB  - ASME
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Kroniger, Daniel
A1  - Horikawa, Atsushi
A1  - Funke, Harald
A1  - Pfäffle, Franziska
A1  - Kishimoto, Tsuyoshi
A1  - Okada, Koichi
T1  - Experimental and numerical investigation on the effect of pressure on micromix hydrogen combustion
T2  - ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition // Volume 3A: Combustion, Fuels, and Emissions
N2  - The micromix (MMX) combustion concept is a DLN gas turbine combustion technology designed for high hydrogen content fuels. Multiple non-premixed miniaturized flames based on jet in cross-flow (JICF) are inherently safe against flashback and ensure a stable operation in various operative conditions.

The objective of this paper is to investigate the influence of pressure on the micromix flame with focus on the flame initiation point and the NOx emissions. A numerical model based on a steady RANS approach and the Complex Chemistry model with relevant reactions of the GRI 3.0 mechanism is used to predict the reactive flow and NOx emissions at various pressure conditions. Regarding the turbulence-chemical interaction, the Laminar Flame Concept (LFC) and the Eddy Dissipation Concept (EDC) are compared. The numerical results are validated against experimental results that have been acquired at a high pressure test facility for industrial can-type gas turbine combustors with regard to flame initiation and NOx emissions.

The numerical approach is adequate to predict the flame initiation point and NOx emission trends. Interestingly, the flame shifts its initiation point during the pressure increase in upstream direction, whereby the flame attachment shifts from anchoring behind a downstream located bluff body towards anchoring directly at the hydrogen jet. The LFC predicts this change and the NOx emissions more accurately than the EDC. The resulting NOx correlation regarding the pressure is similar to a non-premixed type combustion configuration.
KW  - NOx emissions
KW  - hydrogen
KW  - combustor
KW  - gas turbine
Y1  - 2021
U6  - http://dx.doi.org/10.1115/GT2021-58926
N1  - ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. June 7–11, 2021. Virtual, Online.

Paper No: GT2021-58926, V03AT04A025
ER  - 
TY  - JOUR
A1  - Haj Ayed, A.
A1  - Kusterer, K.
A1  - Funke, Harald
A1  - Keinz, Jan
A1  - Striegan, Constantin
A1  - Bohn, D.
T1  - Experimental and numerical investigations of the dry-low-NOx hydrogen micromix combustion chamber of an industrial gas turbine
JF  - Propulsion and power research
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.jppr.2015.07.005
SN  - 2212-540X
VL  - Vol. 4
IS  - Iss. 3
SP  - 123
EP  - 131
ER  - 
TY  - JOUR
A1  - Funke, Harald
A1  - Dickhoff, J.
A1  - Keinz, Jan
A1  - Anis, H. A.
A1  - Parente, A.
A1  - Hendrick, P.
T1  - Experimental and numerical study of the micromix combustion principle applied for hydrogen and hydrogen-rich syngas as fuel with increased energy density for industrial gas turbine applications
JF  - Energy procedia
N2  - The Dry Low NOx (DLN) Micromix combustion principle with increased energy density is adapted for the industrial gas turbine APU GTCP 36-300 using hydrogen and hydrogen-rich syngas with a composition of 90%-Vol. hydrogen (H₂) and 10%-Vol. carbon-monoxide (CO). Experimental and numerical studies of several combustor geometries for hydrogen and syngas show the successful advance of the DLN Micromix combustion from pure hydrogen to hydrogen-rich syngas. The impact of the different fuel properties on the combustion principle and aerodynamic flame stabilization design laws, flow field, flame structure and emission characteristics is investigated by numerical analysis using a hybrid Eddy Break Up combustion model and validated against experimental results.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.egypro.2014.12.201
SN  - 1876-6102 (E-Journal)
IS  - 61
SP  - 1736
EP  - 1739
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Keinz, Jan
A1  - Kusterer, K.
A1  - Haj Ayed, A.
A1  - Kazari, M.
A1  - Kitajima, J.
A1  - Horikawa, A.
A1  - Okada, K.
T1  - Experimental and Numerical Study on Optimizing the DLN Micromix Hydrogen Combustion Principle for Industrial Gas Turbine Applications
T2  - ASME Turbo Expo 2015: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Montreal, Quebec, Canada, June 15–19, 2015
Y1  - 2015
SN  - 978-0-7918-5668-0
U6  - http://dx.doi.org/10.1115/GT2015-42043
SP  - V04AT04A008
ER  - 
TY  - JOUR
A1  - Funke, Harald
A1  - Keinz, Jan
A1  - Kusterer, Karsten
A1  - Ayed, Anis Haj
A1  - Kazari, Masahide
A1  - Kitajima, Junichi
A1  - Horikawa, Atsushi
A1  - Okada, Kunio
T1  - Experimental and Numerical Study on Optimizing the Dry Low NOₓ Micromix Hydrogen Combustion Principle for Industrial Gas Turbine Applications
JF  - Journal of Thermal Science and Engineering Applications
N2  - Combined with the use of renewable energy sources for its production, hydrogen represents a possible alternative gas turbine fuel for future low-emission power generation. Due to the difference in the physical properties of hydrogen compared to other fuels such as natural gas, well-established gas turbine combustion systems cannot be directly applied to dry low NOₓ (DLN) hydrogen combustion. The DLN micromix combustion of hydrogen has been under development for many years, since it has the promise to significantly reduce NOₓ emissions. This combustion principle for air-breathing engines is based on crossflow mixing of air and gaseous hydrogen. Air and hydrogen react in multiple miniaturized diffusion-type flames with an inherent safety against flashback and with low NOₓ emissions due to a very short residence time of the reactants in the flame region. The paper presents an advanced DLN micromix hydrogen application. The experimental and numerical study shows a combustor configuration with a significantly reduced number of enlarged fuel injectors with high-thermal power output at constant energy density. Larger fuel injectors reduce manufacturing costs, are more robust and less sensitive to fuel contamination and blockage in industrial environments. The experimental and numerical results confirm the successful application of high-energy injectors, while the DLN micromix characteristics of the design point, under part-load conditions, and under off-design operation are maintained. Atmospheric test rig data on NOₓ emissions, optical flame-structure, and combustor material temperatures are compared to numerical simulations and show good agreement. The impact of the applied scaling and design laws on the miniaturized micromix flamelets is particularly investigated numerically for the resulting flow field, the flame-structure, and NOₓ formation.
Y1  - 2016
U6  - http://dx.doi.org/10.1115/1.4034849
SN  - 1948-5093
N1  - TSEA-15-1227
VL  - 9
IS  - 2
SP  - 021001
EP  - 021001-10
PB  - ASME
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Funke, Harald
A1  - Börner, Sebastian
A1  - Krebs, W.
A1  - Wolf, E.
T1  - Experimental Characterization of Low NOx Micromix Prototype Combustors for Industrial Gas Turbine Applications
JF  - ASME Turbo Expo 2011 ; Vancouver, Canada, June 6-10, 2011
Y1  - 2011
N1  - GT2011-45305
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Keinz, Jan
A1  - Hendrick, P.
T1  - Experimental Evaluation of the Pollutant and Noise Emissions of the GTCP 36-300 Gas Turbine Operated with Kerosene and a Low NOX Micromix Hydrogen Combustor
T2  - 7th European Conference for Aeronautics and Space Sciences, EUCASS 2017
Y1  - 2017
U6  - http://dx.doi.org/10.13009/EUCASS2017-125
ER  - 
TY  - CHAP
A1  - Gierse, Andreas
A1  - Krämer, Stefan
A1  - Daab, Dominique J.
A1  - Hessel, Joana
A1  - Baader, Fabian
A1  - Müller, Brigitte S.
A1  - Wagner, Tobias
A1  - Gdalewitsch, Georg
A1  - Plescher, Engelbert
A1  - Pfützenreuter, Lysan
T1  - Experimental in-flight modal-analysis of a sounding rocket structure
T2  - 21st ESA Symposium on Rocket and Ballon related Research
Y1  - 2013
SN  - 9789290922858
SP  - 341
EP  - 346
ER  - 
TY  - JOUR
A1  - Bohn, Dieter
A1  - Funke, Harald
T1  - Experimental investigations into the nonuniform flow in a 4-stage turbine with special focus on the flow equalization in the first turbine stage
JF  - ASME TURBO EXPO, Proceedings of the ASME Turbo Expo, 2003
Y1  - 2003
SN  - 0-7918-3689-4
N1  - ASME TURBO EXPO 2003, Proceedings, Vol. 6: Turbomachinery, Pt. A, Atlanta, US, Jun 16-19, 2003
SP  - 281
EP  - 289
ER  - 
TY  - JOUR
A1  - Recker, Elmar
A1  - Bosschaerts, Walter
A1  - Wagemakers, Rolf
A1  - Hendrick, Patrick
A1  - Funke, Harald
A1  - Börner, Sebastian
T1  - Experimental study of a round jet in cross-flow at low momentum ratio
JF  - 15th International Symposium on Applications of Laser Techniques to Fluid Mechanics Lisbon, Portugal, 05-08 July, 2010 - 1
Y1  - 2010
SP  - 1
EP  - 13
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Salve, M. de
A1  - Tin, G. del
A1  - Panella, B.
T1  - Experimental Study of the Temperature Field along a Density Lock / Salve, M. de ; Tin, G. del ; Panella, B. ; Sansoldo, D. ; Havermann, M.
JF  - Proceedings : International Conference on New Trends in Nuclear System Thermohydraulics, May 30th - June 2nd, 1994, Pisa / organized by Dipartimento di Costruzioni Meccaniche e Nucleari ... . Ed. by Francesco Oriolo
Y1  - 1994
N1  - International Conference on New Trends in Nuclear System Thermohydraulics ; (1994.05.30-06.02 ; Pisa)
SP  - 623
EP  - 630
PB  - -
CY  - Pisa
ER  - 
TY  - JOUR
A1  - Bullerschen, Klaus-Gerd
A1  - Voigt, H.
A1  - Friedrich, R.
T1  - Experimentelle und mathematische Untersuchungen zum Heißtransport von Stranggußbrammen
JF  - Stahl und Eisen. 110 (1990), H. 6
Y1  - 1990
SN  - 0378-7559
SP  - 97
EP  - 105
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Hünecke, Klaus
T1  - Experimentelle Untersuchung zur Landeeigenschaft von Hyperschall-Fluggeräten / Hünecke, Klaus ; Mertens, Josef
JF  - DGLR-Jahrbuch 1988 Bd. 1
Y1  - 1988
N1  - DGLR-88-123
SP  - 706
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Antriebssystemen von Kraft-, Luft- und Raumfahrzeugen : Vorlesungsumdruck. 2. Aufl. Bd. 1
Y1  - 2013
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ET  - 2. Aufl.
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Antriebssystemen von Kraft-, Luft- und Raumfahrzeugen : Vorlesungsumdruck. 2. Aufl. Bd. 2
Y1  - 2012
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Antriebssystemen von Kraft-, Luft- und Raumfahrzeugen : Vorlesungsumdruck. 3. Aufl. Bd. 1
Y1  - 2015
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ET  - 3. Aufl.
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Antriebssystemen von Kraft-, Luft- und Raumfahrzeugen : Vorlesungsumdruck. Bd. 1
Y1  - 2007
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Antriebssystemen von Kraft-, Luft- und Raumfahrzeugen : Vorlesungsumdruck. Bd. 2
Y1  - 2007
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Verbrennungsmotoren. - 7. Aufl.
Y1  - 2005
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Experimentelle Untersuchungen an Verbrennungsmotoren. - 8. Aufl., [Umdruck]. - (Angewandte Thermodynamik und Verbrennungstechnik)
Y1  - 2006
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Krüger, O.
T1  - Experimentelle Untersuchungen zur Entrauchung großer Räume unter besonderer Beachtung des Windeinflusses
JF  - vfdb-Zeitschrift. 49 (2000), H. 2
Y1  - 2000
SN  - 0042-1804
SP  - 47
EP  - 54
ER  - 
TY  - JOUR
A1  - Blome, Hans-Joachim
T1  - Exploration des Weltalls. Raumfahrt und der Weg des Menschen in den Kosmos
JF  - Telepolis special. Wie Forscher und Raumfahrer Aliens aufspüren wollen
Y1  - 2004
PB  - Heise Zeitschriften Verlag
CY  - Hannover
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Röger, Wolf
T1  - F-Schlepp: Problem Taumelschwingung
JF  - Aerokurier. 44 (2000), H. 10
Y1  - 2000
SN  - 0341-1281
N1  - in der Bereichsbibliothek unter der Signatur 23 Z 391-2000
SP  - 73
EP  - 73
ER  - 
TY  - CHAP
A1  - Heimes, Heiner Hans
A1  - Kampker, Achim
A1  - Kehrer, Mario
A1  - Dünnwald, Simon
A1  - Heetfeld, Lennart
A1  - Polzenberg, Jens
A1  - Budde, Lucas
A1  - Keusen, Maximilian
A1  - Pandey, Rahul
A1  - Röth, Thilo
ED  - Kampker, Achim
ED  - Heimes, Heiner Hans
T1  - Fahrzeugstruktur
T2  - Elektromobilität: Grundlagen einer Fortschrittstechnologie
N2  - Um sowohl Treibhausgas-Emissionen zu verringern als auch Kraftstoffressourcen zu schonen, wird zunehmend an einer Transformation konventionell angetriebener Kraftfahrzeuge hin zu elektrifizierten Antriebskonzepten gearbeitet. Basierend auf herkömmlichen Fahrzeugen mit Verbrennungsmotor wurde eine Vielzahl neuer Antriebssysteme mit verschiedenem Elektrifizierungsgrad entwickelt. Mitte der 1990er-Jahre kamen erste Fahrzeuge mit einem Hybridantrieb auf den Markt. Die Kombination aus Verbrennungs- und Elektromotor erlaubt eine Verbrauchsreduktion und Bremsenergierückgewinnung sowie lokal emissionsfreies Fahren.
Y1  - 2023
SN  - 978-3-662-65811-6 (Print)
SN  - 978-3-662-65812-3 (Online)
U6  - http://dx.doi.org/10.1007/978-3-662-65812-3_5
N1  - Corresponding author: Heiner Hans Heimes
SP  - 69
EP  - 106
PB  - Springer Vieweg
CY  - Berlin
ER  - 
TY  - PAT
A1  - Höhner, Peter
A1  - Dultmeyer, Josef
A1  - Wahle, Michael
T1  - Federanordnung für einen Rollstuhl : Offenlegungsschrift / Europäische Patentschrift
T1  - Spring arrangement for wheelchair : United States Patent
Y1  - 1993
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt / United States Patent and Trademark Office
CY  - München / Den Hague u.a.
ER  - 
TY  - BOOK
A1  - Cordewiner, Hans-Josef
T1  - Fertigung und Test der Metallfaltbelaege des TEXTOR-Vakuumgefaesses
Y1  - 1983
N1  - Report
PB  - Kernforschungsanlage Juelich GmbH
CY  - Jülich
ER  - 
TY  - RPRT
A1  - Funke, Harald
A1  - Keinz, Jan
T1  - FHprofUnt2012: Adaption und Optimierung des Dry-Low-NOx-Micromix-Verfahrens für hohe Energiedichten für Wasserstoff und H2-reiche Synthesegase (Kurztitel: DLN-H2-Syngas-Verbrennung) : Veröffentlichung der Ergebnisse von Forschungsvorhaben im BMBF-Programm : Projektlaufzeit: 01.08.2012 bis 30.04.2015 : Förderkennzeichen: 03FH019PX2
Y1  - 2015
U6  - http://dx.doi.org/10.2314/GBV:86689893X
ER  - 
TY  - JOUR
A1  - McArdell, Brian W.
A1  - Bartelt, Perry
A1  - Kowalski, Julia
T1  - Field observations of basal forces and fluid pore pressure in a debris flow
JF  - Geophysical Research Letters (GRL)
N2  - Using results from an 8 m2 instrumented force plate we describe field measurements of normal and shear stresses, and fluid pore pressure for a debris flow. The flow depth increased from 0.1 to 1 m within the first 12 s of flow front arrival, remained relatively constant until 100 s, and then gradually decreased to 0.5 m by 600 s. Normal and shear stresses and pore fluid pressure varied in-phase with the flow depth. Calculated bulk densities are ρb = 2000–2250 kg m−3 for the bulk flow and ρf = 1600–1750 kg m−3 for the fluid phase. The ratio of effective normal stress to shear stress yields a Coulomb basal friction angle of ϕ = 26° at the flow front. We did not find a strong correlation between the degree of agitation in the flow, estimated using the signal from a geophone on the force plate, and an assumed dynamic pore fluid pressure. Our data support the idea that excess pore-fluid pressures are long lived in debris flows and therefore contribute to their unusual mobility.
KW  - debris flow
Y1  - 2007
SN  - 0094-8276
VL  - 34
IS  - 7
ER  - 
TY  - JOUR
A1  - Baader, Fabian
A1  - Boxberg, Marc S.
A1  - Chen, Qian
A1  - Förstner, Roger
A1  - Kowalski, Julia
A1  - Dachwald, Bernd
T1  - Field-test performance of an ice-melting probe in a terrestrial analogue environment
JF  - Icarus
N2  - Melting probes are a proven tool for the exploration of thick ice layers and clean sampling of subglacial water on Earth. Their compact size and ease of operation also make them a key technology for the future exploration of icy moons in our Solar System, most prominently Europa and Enceladus. For both mission planning and hardware engineering, metrics such as efficiency and expected performance in terms of achievable speed, power requirements, and necessary heating power have to be known.

Theoretical studies aim at describing thermal losses on the one hand, while laboratory experiments and field tests allow an empirical investigation of the true performance on the other hand. To investigate the practical value of a performance model for the operational performance in extraterrestrial environments, we first contrast measured data from terrestrial field tests on temperate and polythermal glaciers with results from basic heat loss models and a melt trajectory model. For this purpose, we propose conventions for the determination of two different efficiencies that can be applied to both measured data and models. One definition of efficiency is related to the melting head only, while the other definition considers the melting probe as a whole. We also present methods to combine several sources of heat loss for probes with a circular cross-section, and to translate the geometry of probes with a non-circular cross-section to analyse them in the same way. The models were selected in a way that minimizes the need to make assumptions about unknown parameters of the probe or the ice environment.

The results indicate that currently used models do not yet reliably reproduce the performance of a probe under realistic conditions. Melting velocities and efficiencies are constantly overestimated by 15 to 50 % in the models, but qualitatively agree with the field test data. Hence, losses are observed, that are not yet covered and quantified by the available loss models. We find that the deviation increases with decreasing ice temperature. We suspect that this mismatch is mainly due to the too restrictive idealization of the probe model and the fact that the probe was not operated in an efficiency-optimized manner during the field tests. With respect to space mission engineering, we find that performance and efficiency models must be used with caution in unknown ice environments, as various ice parameters have a significant effect on the melting process. Some of these are difficult to estimate from afar.
Y1  - 2023
U6  - http://dx.doi.org/10.1016/j.icarus.2023.115852
N1  - Forschungsdaten hierzu: "Performance data of an ice-melting probe from field tests in two different ice environments" (https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/10890)
IS  - 409
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Röth, Thilo
A1  - Kern, Daniel
A1  - Kirchner, Karsten
A1  - Vietor, Thomas
T1  - Flexbody : Baukastensystem für Karosseriestrukturen / Kern, Daniel ; Röth, Thilo ; Kirchner, Karsten ; Vietor, Thomas
JF  - Mobiles : Fachzeitschrift für Konstrukteure. 35 (2009), H. 2009/2010
Y1  - 2009
SP  - 73
EP  - 75
PB  - Hochsch. für Angewandte Wiss.
CY  - Hamburg
ER  - 
TY  - JOUR
A1  - Funke, Harald
A1  - Beckmann, Nils
T1  - Flexible fuel operation of a Dry-Low-NOx Micromix Combustor with Variable Hydrogen Methane Mixture
JF  - International Journal of Gas Turbine, Propulsion and Power Systems
N2  - The role of hydrogen (H2) as a carbon-free energy carrier is discussed since decades for reducing greenhouse gas emissions. As bridge technology towards a hydrogen-based energy supply, fuel mixtures of natural gas or methane (CH4) and hydrogen are possible.
The paper presents the first test results of a low-emission Micromix combustor designed for flexible-fuel operation with variable H2/CH4 mixtures. The numerical and experimental approach for considering variable fuel mixtures instead of recently investigated pure hydrogen is described.
In the experimental studies, a first generation FuelFlex Micromix combustor geometry is tested at atmospheric pressure at gas turbine operating conditions corresponding to part- and full-load. The H2/CH4 fuel mixture composition is varied between 57 and 100 vol.% hydrogen content.
Despite the challenges flexible-fuel operation poses onto the design of a combustion system, the evaluated FuelFlex Micromix prototype shows a significant low NOx performance
Y1  - 2022
SN  - 1882-5079
VL  - 13
IS  - 2
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Beckmann, Nils
T1  - Flexible Fuel Operation of a Dry-Low-Nox Micromix Combustor with Variable Hydrogen Methane Mixtures
T2  - Proceedings of International Gas Turbine Congress 2019 Tokyo, November 17-22, 2019, Tokyo, Japan
Y1  - 2019
SN  - 978-4-89111-010-9
N1  - IGTC-2019-013
ER  - 
TY  - JOUR
A1  - Schmitz, Günter
A1  - Bartz, R.
A1  - Hansen, W.
T1  - Flexibles elektronisches Verbrennungsmotoren-Indiziersystem (FEVIS)
JF  - Vorträge und Kurzreferate : 13. und 14. November 1990, Congress Centrum, Magdeburg / Technische Universität "Otto von Guericke" Magdeburg, Fakultät für Thermischen Maschinenbau, Institut für Maschinenmeßtechnik, Kolbenmaschinen und Instandhaltung
Y1  - 1991
N1  - ergänzter Nachdr., als Ms. gedr.
SP  - 485
EP  - 491
CY  - Magdeburg
ER  - 
TY  - CHAP
A1  - Hebel, Christoph
A1  - Herrmann, Ulf
A1  - Ritz, Thomas
A1  - Röth, Thilo
A1  - Anthrakidis, Anette
A1  - Böker, Jörg
A1  - Franzke, Till
A1  - Grodzki, Thomas
A1  - Merkens, Torsten
A1  - Schöttler, Mirjam
T1  - FlexSHARE – Methodisches Framework zur innovativen Gestaltung der urbanen Mobilität durch Sharing- Angebote
T2  - Transforming Mobility – What Next?
N2  - Das Ziel des INTERREG-Projektes „SHAREuregio“ (FKZ: 34.EFRE-0300134)
ist es, grenzüberschreitende Mobilität in der Euregio Rhein-Maas-Nord zu
ermöglichen und zu fördern. Dazu soll ein elektromobiles Car- und Bikesharing-
System entwickelt und in der Stadt Mönchengladbach, im Kreis Viersen
sowie in den Gemeinden Roermond und Venlo (beide NL) zusammen mit den
Partnern Wirtschaftsförderung Mönchengladbach, Wirtschaftsförderung für den
Kreis Viersen, NEW AG, Goodmoovs (NL), Greenflux (NL) und der FH Aachen
implementiert werden. Zunächst richtet sich das Angebot, bestehend aus 40
Elektroautos und 40 Elektrofahrrädern, an Unternehmen und wird nach einer
Erprobungsphase, mit einer größeren Anzahl an Fahrzeugen, auch für Privatpersonen
verfügbar gemacht werden. Die Fahrzeuge stehen bei den jeweiligen
Anwendungspartnern in Deutschland und den Niederlanden.
Im Rahmen dieses Projektes hat die FH Aachen „FlexSHARE“ entwickelt
– ein methodisches Framework zur innovativen Gestaltung urbaner Sharing-
Angebote. Das Framework ermöglicht es, anhand von messbaren Kenngrößen,
bedarfsgerechte und auf die Region abgestimmte Sharing-Systeme zu entwickeln.
Y1  - 2022
SN  - 978-3-658-36429-8
U6  - http://dx.doi.org/10.1007/978-3-658-36430-4_10
N1  - Tagungsband zum 13. Wissenschaftsforum Mobilität,  Beiträge des Wissenschaftsforums
SP  - 153
EP  - 169
PB  - Springer Gabler
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Schmidt, Tanja D.
A1  - Seboldt, Wolfgang
A1  - Auweter-Kurtz, 
T1  - Flight Opportunities from Mars to Earth for Piloted Missions Using Continuous Thrust Propulsion / Schmidt, Tanja D. ; Dachwald, Bernd ; Seboldt, Wolfgang ; Auweter-Kurtz, Monika
Y1  - 2003
N1  - 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
20-23 July 2003, Huntsville, Alabama ; AIAA 2003-4573
SP  - 1
EP  - 9
PB  - -
ER  - 
TY  - JOUR
A1  - Scholz, A.
A1  - Ley, Wilfried
A1  - Dachwald, Bernd
A1  - Miau, J. J.
A1  - Juang, J. C.
T1  - Flight results of the COMPASS-1 picosatellite mission
JF  - Acta Astronautica. 67 (2010), H. 9-10
Y1  - 2010
SN  - 0094-5765
SP  - 1289
EP  - 1298
ER  - 
TY  - CHAP
A1  - Schildt, P.
A1  - Braun, Carsten
A1  - Marcocca, P.
T1  - Flight testing the extra 330LE flying testbed
T2  - 48th Annual International Symposium of the Society of Flight Test Engineers 2017
Y1  - 2017
SN  - 978-151085387-4
N1  - 48th Annual International Symposium of the Society of Flight Test Engineers 2017, SFTE 2017; Destin; United States; 30 October 2017 through 2 November 2017
SP  - 349
EP  - 362
ER  - 
TY  - CHAP
A1  - Ohndorf, Andreas
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
A1  - Schartner, Karl-Heinz
T1  - Flight times to the heliopause using a combination of solar and radioisotope electric propulsion
T2  - 32nd International Electric Propulsion Conference
N2  - We investigate the interplanetary flight of a low-thrust space probe to the heliopause,located at a distance of about 200 AU from the Sun. Our goal was to reach this distance within the 25 years postulated by ESA for such a mission (which is less ambitious than the 15-year goal set by NASA). Contrary to solar sail concepts and combinations of allistic and electrically propelled flight legs, we have investigated whether the set flight time limit could also be kept with a combination of solar-electric propulsion and a second, RTG-powered upper stage. The used ion engine type was the RIT-22 for the first stage and the RIT-10 for the second stage. Trajectory optimization was carried out with the low-thrust optimization program InTrance, which implements the method of Evolutionary Neurocontrol,using Artificial Neural Networks for spacecraft steering and Evolutionary Algorithms to optimize the Neural Networks’ parameter set. Based on a parameter space study, in which the number of thrust units, the unit’s specific impulse, and the relative size of the solar power generator were varied, we have chosen one configuration as reference. The transfer time of this reference configuration was 29.6 years and the fastest one, which is technically
more challenging, still required 28.3 years. As all flight times of this parameter study were longer than 25 years, we further shortened the transfer time by applying a launcher-provided hyperbolic excess energy up to 49 km2/s2. The resulting minimal flight time for the reference configuration was then 27.8 years. The following, more precise optimization to a launch with the European Ariane 5 ECA rocket reduced the transfer time to 27.5 years. This is the fastest mission design of our study that is flexible enough to allow a launch every
year. The inclusion of a fly-by at Jupiter finally resulted in a flight time of 23.8 years,which is below the set transfer-time limit. However, compared to the 27.5-year transfer,this mission design has a significantly reduced launch window and mission flexibility if the
escape direction is restricted to the heliosphere’s “nose".
KW  - low-thrust trajectory optimization
KW  - heliosphere
KW  - ion propulsion
Y1  - 2011
N1  - IEPC-2011-051
32nd International Electric Propulsion Conference,September 11–15, 2011
Wiesbaden, Germany
SP  - 1
EP  - 12
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Boden, Ralf
A1  - Ceriotti, Matteo
A1  - Chand, Suditi
A1  - Cordero, Federico
A1  - Dachwald, Bernd
A1  - Dumont, Etienne
A1  - Grimm, Christian D.
A1  - Heiligers, Jeannette
A1  - Herčík, David
A1  - Hérique, Alain
A1  - Ho, Tra-Mi
A1  - Jahnke, Rico
A1  - Kofman, Wlodek
A1  - Lange, Caroline
A1  - Lichtenheldt, Roy
A1  - McInnes, Colin
A1  - Meß, Jan-Gerd
A1  - Mikschl, Tobias
A1  - Mikulz, Eugen
A1  - Montenegro, Sergio
A1  - Moore, Iain
A1  - Pelivan, Ivanka
A1  - Peloni, Alessandro
A1  - Plettemeier, Dirk
A1  - Quantius, Dominik
A1  - Reershemius, Siebo
A1  - Renger, Thomas
A1  - Riemann, Johannes
A1  - Rogez, Yves
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seboldt, Wolfgang
A1  - Seefeldt, Patric
A1  - Spietz, Peter
A1  - Spröwitz, Tom
A1  - Sznajder, Maciej
A1  - Tóth, Norbert
A1  - Vergaaij, Merel
A1  - Viavattene, Giulia
A1  - Wejmo, Elisabet
A1  - Wiedemann, Carsten
A1  - Wolff, Friederike
A1  - Ziach, Christian
T1  - Flights are ten a sail – Re-use and commonality in the design and system engineering of small spacecraft solar sail missions with modular hardware for responsive and adaptive exploration
T2  - 70th International Astronautical Congress (IAC)
KW  - system engineering
KW  - small solar system body characterisation
KW  - small spacecraft solar sail
KW  - small spacecraft asteroid lander
KW  - responsive space
Y1  - 2019
SN  - 9781713814856
N1  - 70th International Astronautical Congress (IAC), Washington D.C., United States, 21-25 October 2019
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Kramer, C.
A1  - Janssen, L.-J.
T1  - Flow studies of an open jet wind tunnel and comparison with closed and slotted walls
Y1  - 1985
N1  - Konferenz-Einzelbericht: 6th Colloquium on Industrial Aerodynamics, Road Vehicle Aerodynamics,  Fachhochschule Aachen, 19.-21.6.1985
SP  - 7
EP  - 28
ER  - 
TY  - PAT
A1  - Mertens, Josef
A1  - Velden, Alexander van der
A1  - Kelm, Roland
T1  - Flugzeug mit Flügeln, deren maximaler Auftrieb durch steuerbare Flügelkomponenten veränderbar ist : Offenlegungsschrift DE102004045732 ; Offenlegungstag: 30.03.2006 = Aircraft with wings whose maximum lift can be altered by controllable wing components
Y1  - 2006
N1  - Zugleich EP1791755A1. - Volltext über Datenbank: http://publikationen.dpma.de/
PB  - Deutsches Patent- und Markenamt
CY  - München
ER  - 
TY  - CHAP
A1  - Olaru, Alexandra Maria
A1  - Kowalski, Julia
A1  - Sethi, Vaishali
A1  - Blümich, Bernhard
T1  - Fluid Transport in Porous Media probed by Relaxation-Exchange NMR
T2  - 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec.
Y1  - 2011
N1  - H12B-07; American Geophysical Union
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Jänsch, Vanessa K.
T1  - Forschendes Lernen und Studienerfolg: Die Bedeutung epistemischer Neugier
T2  - Forschendes Lernen in der Studieneingangsphase: Empirische Befunde, Fallbeispiele und individuelle Perspektiven
N2  - Forschendes Lernen ist dazu geeignet, epistemische Neugier – definiert als Freude an neuen Erkenntnissen - anzuregen und zu befriedigen. Neben der Selbstwirksamkeit zeigt sich die Neugier als relevant für den Studienerfolg. Allerdings ist bisher nicht geklärt, in welcher Beziehung diese beiden Konstrukte zueinanderstehen.
KW  - Epistemische Neugier
KW  - intrinsische Motivation
KW  - Selbstwirksamkeit
Y1  - 2019
SN  - 978-3-658-25312-7
U6  - http://dx.doi.org/10.1007/978-3-658-25312-7_6
SP  - 99
EP  - 109
PB  - Springer VS
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Barnat, Miriam
A1  - Mergner, Julia
T1  - Forschungsbasierte Qualitätsentwicklung am Beispiel der Analyse von Lernprozessen und der Wirksamkeit von Förderprogrammen
T2  - 3. Internationale Tagung für Qualitätsmanagement und Qualitätsentwicklung im Hochschulbereich 2.-3. Februar 2017
Y1  - 2017
ER  - 
TY  - JOUR
A1  - Hammer, Thorben
A1  - Quitter, Julius
A1  - Mayntz, Joscha
A1  - Bauschat, J.-Michael
A1  - Dahmann, Peter
A1  - Götten, Falk
A1  - Hille, S.
A1  - Stumpf, E.
T1  - Free fall drag estimation of small-scale multirotor unmanned aircraft systems using computational fluid dynamics and wind tunnel experiments
JF  - CEAS Aeronautical Journal
N2  - New European Union (EU) regulations for UAS operations require an operational risk analysis, which includes an estimation of the potential danger of the UAS crashing. A key parameter for the potential ground risk is the kinetic impact energy of the UAS. The kinetic energy depends on the impact velocity of the UAS and, therefore, on the aerodynamic drag and the weight during free fall. Hence, estimating the impact energy of a UAS requires an accurate drag estimation of the UAS in that state. The paper at hand presents the aerodynamic drag estimation of small-scale multirotor UAS. Multirotor UAS of various sizes and configurations were analysed with a fully unsteady Reynolds-averaged Navier–Stokes approach. These simulations included different velocities and various fuselage pitch angles of the UAS. The results were compared against force measurements performed in a subsonic wind tunnel and provided good consistency. Furthermore, the influence of the UAS`s fuselage pitch angle as well as the influence of fixed and free spinning propellers on the aerodynamic drag was analysed. Free spinning propellers may increase the drag by up to 110%, depending on the fuselage pitch angle. Increasing the fuselage pitch angle of the UAS lowers the drag by 40% up to 85%, depending on the UAS. The data presented in this paper allow for increased accuracy of ground risk assessments.
KW  - Multirotor UAS
KW  - Drag estimation
KW  - CFD
KW  - Wind tunnel experiments
KW  - Wind milling
Y1  - 2023
U6  - http://dx.doi.org/10.1007/s13272-023-00702-w
SN  - 1869-5590 (Online)
SN  - 1869-5582 (Print)
N1  - Corresponding author: Thorben Hammer
PB  - Springer
CY  - Wien
ER  - 
TY  - CHAP
A1  - Grundmann, Jan Thimo
A1  - Bauer, Waldemar
A1  - Biele, Jens
A1  - Cordero, Frederico
A1  - Dachwald, Bernd
A1  - Koncz, Alexander
A1  - Krause, Christian
A1  - Mikschl, Tobias
A1  - Montenegro, Sergio
A1  - Quantius, Dominik
A1  - Ruffer, Michael
A1  - Sasaki, Kaname
A1  - Schmitz, Nicole
A1  - Seefeldt, Patric
A1  - Tóth, Norbert
A1  - Wejmo, Elisabet
T1  - From Sail to Soil – Getting Sailcraft Out of the Harbour on a Visit to One of Earth’s Nearest Neighbours
T2  - 4th IAA Planetary Denfense Conference - PDC 2015,  13-17 April 2015, Frascati, Roma, Italy
Y1  - 2015
ER  - 
TY  - JOUR
A1  - Götten, Falk
A1  - Finger, Felix
A1  - Havermann, Marc
A1  - Braun, Carsten
A1  - Marino, M.
A1  - Bil, C.
T1  - Full configuration drag estimation of short-to-medium range fixed-wing UAVs and its impact on initial sizing optimization
JF  - CEAS Aeronautical Journal
N2  - The paper presents the derivation of a new equivalent skin friction coefficient for estimating the parasitic drag of short-to-medium range fixed-wing unmanned aircraft. The new coefficient is derived from an aerodynamic analysis of ten different unmanned aircraft used for surveillance, reconnaissance, and search and rescue missions. The aircraft is simulated using a validated unsteady Reynolds-averaged Navier Stokes approach. The UAV’s parasitic drag is significantly influenced by the presence of miscellaneous components like fixed landing gears or electro-optical sensor turrets. These components are responsible for almost half of an unmanned aircraft’s total parasitic drag. The new equivalent skin friction coefficient accounts for these effects and is significantly higher compared to other aircraft categories. It is used to initially size an unmanned aircraft for a typical reconnaissance mission. The improved parasitic drag estimation yields a much heavier unmanned aircraft when compared to the sizing results using available drag data of manned aircraft.
KW  - Parasitic drag
KW  - UAV
KW  - CFD
KW  - Aircraft sizing
Y1  - 2021
U6  - http://dx.doi.org/10.1007/s13272-021-00522-w
SN  - 1869-5590 (Online)
SN  - 1869-5582 (Print)
N1  - Corresponding author: Falk Götten
VL  - 12
SP  - 589
EP  - 603
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Götten, Falk
A1  - Finger, Felix
A1  - Havermann, Marc
A1  - Braun, Carsten
A1  - Marino, Matthew
A1  - Bil, Cees
T1  - Full Configuration Drag Estimation of Small-to-Medium Range UAVs and its Impact on Initial Sizing Optimization
T2  - Deutscher Luft- und Raumfahrtkongress - DLRK 2020
Y1  - 2020
ER  -