@incollection{ReimerWellmerBraunetal.2009, author = {Reimer, Lars and Wellmer, Georg and Braun, Carsten and Ballmann, Josef}, title = {Computational methods for aero-structural analysis and optimisation of aircrafts based on reduced-order structural models}, series = {MEGADESIGN and MegaOpt - German initiatives for aerodynamic simulation and optimization in aircraft design. Results of the closing symposium of the MEGADESIGN and MegaOpt projects, Braunschweig, Germany, 23 - 24 May, 2007 / Norbert Kroll ... (Eds.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 107}, booktitle = {MEGADESIGN and MegaOpt - German initiatives for aerodynamic simulation and optimization in aircraft design. Results of the closing symposium of the MEGADESIGN and MegaOpt projects, Braunschweig, Germany, 23 - 24 May, 2007 / Norbert Kroll ... (Eds.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 107}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-04092-4}, pages = {135 -- 150}, year = {2009}, abstract = {In this part of the MEGADESIGN project, aeroelastic effects are introduced into the aerodynamic analysis of aircrafts by coupling DLR's flow solvers TAU and FLOWer to a Timoshenko-beam solver. The emerging aeroelastic solvers and a method for the automatic identification of Timoshenko-beam models for wing-box structures were integrated into a simulation environment enabling the combined optimisation of aerodynamic wing shape and structure.}, language = {en} } @incollection{ReimerBraunBallmann2007, author = {Reimer, Lars and Braun, Carsten and Ballmann, Josef}, title = {Computational study of the aeroelastic equilibrium configuration of a swept wind tunnel wing model in subsonic flow}, series = {High performance computing in science and engineering '06. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2006 / Wolfgang E. Nagel ... Eds.}, booktitle = {High performance computing in science and engineering '06. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2006 / Wolfgang E. Nagel ... Eds.}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-540-36165-7}, pages = {421 -- 434}, year = {2007}, abstract = {In the Collaborative Research Center SFB 401 at RWTH Aachen University, the numerical aeroelastic method SOFIA for direct numerical aeroelastic simulation is being progressively developed. Numerical results obtained by applying SOFIA were compared with measured data of static and dynamic aeroelastic wind tunnel tests for an elastic swept wing in subsonic flow.}, language = {en} } @inproceedings{KemperHellenbroichEsch2009, author = {Kemper, Hans and Hellenbroich, Gereon and Esch, Thomas}, title = {Concept of an innovative passenger-car hybrid drive for European driving conditions}, series = {Hybrid vehicles and energy management : 6th symposium ; 18th and 19th February 2009, Stadthalle Braunschweig}, booktitle = {Hybrid vehicles and energy management : 6th symposium ; 18th and 19th February 2009, Stadthalle Braunschweig}, publisher = {Gesamtzentrum f{\"u}r Verkehr (GZVB)}, address = {Braunschweig}, isbn = {978-3-937655-20-8}, pages = {264 -- 287}, year = {2009}, abstract = {The downsizing of spark ignition engines in conjunction with turbocharging is considered to be a promising method for reducing CO₂ emissions. Using this concept, FEV has developed a new, highly efficient drivetrain to demonstrate fuel consumption reduction and drivability in a vehicle based on the Ford Focus ST. The newly designed 1.8L turbocharged gasoline engine incorporates infinitely variable intake and outlet control timing and direct fuel injection utilizing piezo injectors centrally located. In addition, this engine uses a prototype FEV engine control system, with software that was developed and adapted entirely by FEV. The vehicle features a 160 kW engine with a maximum mean effective pressure of 22.4 bar and 34 \% savings in simulated fuel consumption. During the first stage, a new electrohydraulically actuated hybrid transmission with seven forward gears and one reverse gear and a single dry starting clutch will be integrated. The electric motor of the hybrid is directly connected to the gear set of the transmission. Utilizing the special gear set layout, the electric motor can provide boost during a change of gears, so that there is no interruption in traction. Therefore, the transmission system combines the advantages of a double clutch controlled gear change (gear change without an interruption in traction) with the efficient, cost-effective design of an automated manual transmission system. Additionally, the transmission provides a purely electric drive system and the operation of an air-conditioning compressor during the engine stop phases. One other alternative is through the use of CAI (Controlled Auto Ignition), which incorporates a process developed by FEV for controlled compression ignition.}, language = {en} } @inproceedings{GoettenFinger2019, author = {G{\"o}tten, Falk and Finger, Felix}, title = {Conceptual Design of a Modular 150 kg Vertical Take-off and Landing Unmanned Aerial Vehicle}, series = {Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany}, booktitle = {Deutscher Luft- und Raumfahrtkongress - DLRK 2019. Darmstadt, Germany}, pages = {1 -- 10}, year = {2019}, language = {en} } @article{FunkeBoernerFalketal.2011, author = {Funke, Harald and B{\"o}rner, Sebastian and Falk, F. and Hendrick, P.}, title = {Control system modifications and their effects on the operation of a hydrogen-fueled Auxiliary Power Unit}, series = {XX international symposium on air breathing engines 2011 : ISABE 2011, Gothenburg, Sweden, 12-16 September, 2011. Vol. 2.}, journal = {XX international symposium on air breathing engines 2011 : ISABE 2011, Gothenburg, Sweden, 12-16 September, 2011. Vol. 2.}, publisher = {American Institute of Aeronautics and Astronautics}, address = {Reston, VA}, isbn = {9781618391803}, pages = {929 -- 938}, year = {2011}, language = {en} } @article{BoernerFunkeHendricketal.2010, author = {B{\"o}rner, Sebastian and Funke, Harald and Hendrick, P. and Recker, E.}, title = {Control system modifications for a hydrogen fuelled gas-turbine}, series = {ISROMAC 13, 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, US, Apr 4-7, 2010}, journal = {ISROMAC 13, 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, US, Apr 4-7, 2010}, publisher = {Curran}, address = {Red Hook, NY}, isbn = {978-1-617-38848-4}, pages = {665 -- 670}, year = {2010}, language = {en} } @article{BullerschenWilhelmi1991, author = {Bullerschen, Klaus-Gerd and Wilhelmi, Herbert}, title = {Cooling of arc furnace electrodes with heat pipes}, series = {Chemical Engineering \& Technology. 14 (1991), H. 1}, journal = {Chemical Engineering \& Technology. 14 (1991), H. 1}, isbn = {0930-7516}, pages = {45 -- 53}, year = {1991}, language = {en} } @inproceedings{FingerGoettenBraunetal.2019, author = {Finger, Felix and G{\"o}tten, Falk and Braun, Carsten and Bil, Cees}, title = {Cost Estimation Methods for Hybrid-Electric General Aviation Aircraft}, series = {Asia Pacific International Symposium on Aerospace Technology. APISAT 2019}, booktitle = {Asia Pacific International Symposium on Aerospace Technology. APISAT 2019}, pages = {1 -- 13}, year = {2019}, language = {en} } @article{SchuellerKowalskiRaback2016, author = {Sch{\"u}ller, K. and Kowalski, Julia and Raback, P.}, title = {Curvilinear melting - A preliminary experimental and numerical study}, series = {International Journal of Heat and Mass Transfer}, journal = {International Journal of Heat and Mass Transfer}, number = {92}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0017-9310}, doi = {10.1016/j.ijheatmasstransfer.2015.09.046}, pages = {884 -- 892}, year = {2016}, abstract = {When exploring glacier ice it is often necessary to take samples or implement sensors at a certain depth underneath the glacier surface. One way of doing this is by using heated melting probes. In their common form these devices experience a straight one-dimensional downwards motion and can be modeled by standard close-contact melting theory. A recently developed melting probe however, the IceMole, achieves maneuverability by simultaneously applying a surface temperature gradient to induce a change in melting direction and controlling the effective contact-force by means of an ice screw to stabilize its change in attitude. A modeling framework for forced curvilinear melting does not exist so far and will be the content of this paper. At first, we will extend the existing theory for quasi-stationary close-contact melting to curved trajectories. We do this by introducing a rotational mode. This additional unknown in the system implies yet the need for another model closure. Within this new framework we will focus on the effect of a variable contact-force as well as different surface temperature profiles. In order to solve for melting velocity and curvature of the melting path we present both an inverse solution strategy for the analytical model, and a more general finite element framework implemented into the open source software package ELMER. Model results are discussed and compared to experimental data conducted in laboratory tests.}, language = {de} } @article{HavermannSeilerGeorgesetal.2002, author = {Havermann, Marc and Seiler, F. and Georges, A. and Leopold, F.}, title = {Das Dopplerbildverfahren (DPV) des ISL zur Messung der Str{\"o}mungsgeschwindigkeit in einer Ebene / Seiler, F. ; Georges, A. ; Leopold, F. ; Srulijes, J. ; Havermann, M.}, series = {Lasermethoden in der Str{\"o}mungsmesstechnik, 10. Fachtagung, Deutsche Gesellschaft f{\"u}r Laser-Anemometrie GALA, Rostock, DE, 10.-12. Sep, 2002}, journal = {Lasermethoden in der Str{\"o}mungsmesstechnik, 10. Fachtagung, Deutsche Gesellschaft f{\"u}r Laser-Anemometrie GALA, Rostock, DE, 10.-12. Sep, 2002}, publisher = {Univ.}, address = {Rostock}, isbn = {3-86009-233-2}, pages = {11.1 -- 11.6}, year = {2002}, language = {de} } @article{GerhardtKonrathLieb2005, author = {Gerhardt, Hans Joachim and Konrath, B. and Lieb, R.-D.}, title = {Das Drallrohr}, series = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 11}, journal = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 11}, isbn = {1436-5103}, pages = {91 -- 95}, year = {2005}, language = {en} } @article{Blome1989, author = {Blome, Hans-Joachim}, title = {Das Quantenvakuum und die kosmologische Konstante}, series = {Physikalische Bl{\"a}tter. 45 (1989)}, journal = {Physikalische Bl{\"a}tter. 45 (1989)}, isbn = {0342-4472}, pages = {51 -- 56}, year = {1989}, language = {de} } @article{WittmannKehrWillnecker2000, author = {Wittmann, Klaus and Kehr, J. and Willnecker, R.}, title = {Decentralized Payload Operations Concept for Columbus}, year = {2000}, language = {en} } @article{EschSalberKemperetal.2000, author = {Esch, Thomas and Salber, W. and Kemper, Hans and Staay, F. van der}, title = {Der elektromechanische Ventiltrieb - Systembaustein f{\"u}r zuk{\"u}nftige Antriebskonzepte, Teil 1.}, series = {Motortechnische Zeitschrift (MTZ).}, volume = {61}, journal = {Motortechnische Zeitschrift (MTZ).}, number = {12}, publisher = {Springer Nature}, address = {Basel}, issn = {0024-8525}, doi = {10.1007/bf03227081}, pages = {826 -- 836}, year = {2000}, language = {de} } @article{EschSalberKemperetal.2001, author = {Esch, Thomas and Salber, W. and Kemper, Hans and Staay, F. van der}, title = {Der elektromechanische Ventiltrieb - Systembaustein f{\"u}r zuk{\"u}nftige Antriebskonzepte, Teil 2.}, series = {Motortechnische Zeitschrift (MTZ).}, volume = {62}, journal = {Motortechnische Zeitschrift (MTZ).}, number = {1}, publisher = {Springer Nature}, address = {Basel}, issn = {0024-8525}, doi = {10.1007/bf03227081}, pages = {44 -- 55}, year = {2001}, language = {de} } @book{BlomeZaun2004, author = {Blome, Hans-Joachim and Zaun, Harald}, title = {Der Urknall : Anfang und Zukunft des Universums}, publisher = {Beck}, address = {M{\"u}nchen}, isbn = {3406508375}, pages = {128 S : graph. Darst ; 18 cm}, year = {2004}, language = {de} } @book{BlomeZaun2007, author = {Blome, Hans-Joachim and Zaun, Harald}, title = {Der Urknall : Anfang und Zukunft des Universums 2., aktualisierte Aufl.}, publisher = {Beck}, address = {M{\"u}nchen}, isbn = {3-406-50837-5}, pages = {128 S.}, year = {2007}, language = {de} } @article{SchmitzDamannSchmit1984, author = {Schmitz, G{\"u}nter and Damann, H. and Schmit, H. J.}, title = {Design and Analysis of a Waveguide Isolator with a Form-Birefringent Top Layer}, series = {ECOC '84 : Conference proceedings ; 10th European Conference on Optical Communication, September 3 - 6, 1984 Liederhalle Stuttgart, Federal Republic of Germany / Organized by Nachrichtentechn. Ges. im VDE (NTG).}, journal = {ECOC '84 : Conference proceedings ; 10th European Conference on Optical Communication, September 3 - 6, 1984 Liederhalle Stuttgart, Federal Republic of Germany / Organized by Nachrichtentechn. Ges. im VDE (NTG).}, publisher = {VDE-Verl.}, address = {Berlin [u.a.]}, isbn = {3-8007-1383-7}, pages = {42}, year = {1984}, language = {en} } @article{RobinsonFunkeHendrick2011, author = {Robinson, A. E. and Funke, Harald and Hendrick, P.}, title = {Design and Testing of a Micromix Combustor With Recuperative Wall Cooling for a Hydrogen Fueled µ-Scale Gas Turbine}, series = {Journal of engineering for gas turbines and power}, volume = {133}, journal = {Journal of engineering for gas turbines and power}, number = {8}, publisher = {ASME}, address = {New York}, isbn = {1528-8919}, pages = {Art. Nr. 082301 , 8 Seiten}, year = {2011}, language = {en} } @article{FunkeRobinsonHendricketal.2010, author = {Funke, Harald and Robinson, A. E. and Hendrick, P. and Wagemakers, R.}, title = {Design and Testing of a Micromix Combustor With Recuperative Wall Cooling for a Hydrogen Fuelled µ-Scale Gas Turbine}, series = {Proceedings of the ASME Turbo Expo 2010 : presented at the 2010 ASME Turbo Expo, June 14 - 18, 2010, Glasgow, UK / sponsored by the International Gas Turbine Institute / Vol. 5: Industrial and cogeneration ; microturbines and small turbomachinery ; oil and gas applications ; wind turbine technology}, journal = {Proceedings of the ASME Turbo Expo 2010 : presented at the 2010 ASME Turbo Expo, June 14 - 18, 2010, Glasgow, UK / sponsored by the International Gas Turbine Institute / Vol. 5: Industrial and cogeneration ; microturbines and small turbomachinery ; oil and gas applications ; wind turbine technology}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4400-7}, pages = {587 -- 596}, year = {2010}, language = {en} }