TY  - JOUR
A1  - Höttges, Jörg
A1  - Feldhaus, R.
A1  - Brockhaus, T.
A1  - Rouvé, Gerhard
T1  - Finite Element Simulation of Flow and Pollution Transport applied to a Part of the River Rhine / Feldhaus, R.; J. Höttges, T. Brockhaus; G. Rouvé
JF  - Hydraulic and environmental modelling : proceedings of the Second International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters / [IAHR-AIRH]. Ed. by R. A. Falconer
Y1  - 1992
N1  - International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters ; (2, 1992, Bradford)
PB  - Ashgate
CY  - Aldershot, Hants, UK [u.a.]
ER  - 
TY  - CHAP
A1  - Oertel, M.
A1  - Bung, Daniel Bernhard
A1  - Schlenkhoff, Andreas
T1  - Flash flood awareness and prevention
T2  - Water engineering for sustainable environment : 33rd IAHR congress ; 9 - 14 August 2009, Vancouver, British Columbia, Canada
Y1  - 2009
SN  - 9789078046080
SP  - 1 CD-ROM
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Oertel, M.
A1  - Schlenkhoff, A.
A1  - Schlurmann, Torsten
ED  - Obrusnik, Ivan
T1  - Flash flood awareness and prevention in Germany
T2  - Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings
Y1  - 2010
SN  - 978-80-86690-91-9
SP  - 34
EP  - 40
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Kuhnhenne, Markus
A1  - Feldmann, Markus
T1  - Floor systems - key elements for sustainable multi-storey buildings
T2  - SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011
Y1  - 2011
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Feldmann, M.
A1  - Döring, Bernd
A1  - Pyschny, D.
T1  - Floor systems; Sustainabilty analyses and assessments of steel bridges
T2  - Sustainable steel buildings : a practical guide for structures and envelopes
Y1  - 2016
SN  - 978-1-118-74079-8 (PDF)
SN  - 978-1-118-74111-5
SP  - 198
EP  - 223
PB  - Wiley Blackwell
CY  - Chichester, West Sussex
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Valero, Daniel
T1  - FlowCV - An open-source toolbox for computer vision applications in turbulent flows
T2  - Proceedings of the 37th IAHR World Congress August 13 – 18, 2017, Kuala Lumpur, Malaysia
Y1  - 2017
SN  - 2521-716X
SP  - 5356
EP  - 5365
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Hüben, Susanne
T1  - From rehabilitation strategy up to formation of lots : implementation of a computer-aided decision support system
T2  - 11th International Conference on Urban Drainage, Edinburgh, Scotland, UK, 31st August to 5th September 2008
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Kerres, Karsten
A1  - Gredigk-Hoffmann, Sylvia
A1  - Jathe, Rüdiger
A1  - Orlik, Stefan
A1  - Sariyildiz, Mustafa
A1  - Schmidt, Torsten
A1  - Sympher, Klaus-Jochen
A1  - Uhlenbroch, Adrian
T1  - Future approaches for sewer system condition assessment
JF  - Water Practice & Technology
N2  - Different analytical approaches exist to describe the structural substance or wear reserve of sewer systems. The aim is to convert engineering assessments of often complex defect patterns into computational algorithms and determine a substance class for a sewer section or manhole. This analytically determined information is essential for strategic rehabilitation planning processes up to network level, as it corresponds to the most appropriate rehabilitation type and can thus provide decision-making support. Current calculation methods differ clearly from each other in parts, so that substance classes determined by the different approaches are only partially comparable with each other. The objective of the German R&D cooperation project ‘SubKanS’ is to develop a methodology for classifying the specific defect patterns resulting from the interaction of all the individual defects, and their severities and locations. The methodology takes into account the structural substance of sewer sections and manholes, based on real data and theoretical considerations analogous to the condition classification of individual defects. The result is a catalogue of defect patterns and characteristics, as well as associated structural substance classifications of sewer systems (substance classes). The methodology for sewer system substance classification is developed so that the classification of individual defects can be transferred into a substance class of the sewer section or manhole, eventually taking into account further information (e.g. pipe material, nominal diameter, etc.). The result is a validated methodology for automated sewer system substance classification.
Y1  - 2020
U6  - https://doi.org/10.2166/wpt.2020.027
SN  - 1751-231X
IS  - 15 (2)
SP  - 386
EP  - 393
PB  - IWA Publishing
CY  - London
ER  - 
TY  - JOUR
A1  - Biener, Ernst
A1  - Boyken, P.
A1  - Sasse, T.
A1  - Arnold, J.
T1  - Geotechnical aspects of the construction of the integrated harbour sludge management system in Bremen-Seehausen / P. Boyken ;  E. Biener ; T. Sasse ; J. Arnold
JF  - Geotechnical engineering for transportation infrastructure : proceedings of the twelfth European Conference on Soil Mechanics and Geotechnical Engineering, Amsterdam, Netherlands, 7 - 10 June 1999 ; theory and practice, planning and design, construction and maintenance. - Vol. 2
Y1  - 1999
SN  - 90-5809-049-3
N1  - European Conference on Soil Mechanics and Geotechnical Engineering <12, 1999, Amsterdam>
SP  - 909
EP  - 914
PB  - Balkema
CY  - Rotterdam
ER  - 
TY  - CHAP
A1  - Kirsch, Ansgar
A1  - Felber, W.
A1  - Marcher, Thomas
A1  - Fuchs, W.
T1  - Geotechnical challenges during design and construction of a ski resort in Azerbaijan
T2  - Geotechnics of roads and railways : proceedings of the 15th Danube - European Conference on Geotechnical Engineering : 9-11 September 2014, Vienna, Austria
Y1  - 2014
SN  - 978‐3‐902593‐01‐6
SP  - 757
EP  - 762
PB  - ÖIAV - Österreichischer Ingenieur- und Architekten-Verein
CY  - Wien
ER  - 
TY  - CHAP
A1  - Groß, Rolf Fritz
A1  - Hecken, M.
A1  - Renz, Ulrich
ED  - Dittler, A.
ED  - Hemmer, G.
ED  - Kasper, G.
T1  - Hot gas filtration with ceramic filter candles: experimental and numerical investigations on fluid flow during element cleaning
T2  - High temperature gas cleaning. Vol. 2
N2  - Ceramic hot gas filters are widely used in combined cycles based on pressurised fluidised beds. They fulfil most of the demands with respect to cleaning efficiency and long time durability, but their operation regarding the consumption of pulse gas and energy still has to be optimised. Experimental investigations were carried out to measure the flow field, the pressure and the gas temperature inside the filter candle during pulse jet cleaning. These results are compared with the results of a numerical procedure based on a solution of the two - dimensional conservation equations for momentum and energy. The observed difficulties handling different flow regimes like highly turbulent flow as well as Darcy flow simultaneously are discussed.
KW  - 20 fossil-fueled power plants
KW  - hot gas cleanup
KW  - ceramics
KW  - filtration
KW  - gas flow
Y1  - 1999
SN  - 3-9805220-1-6
N1  - 4th International Symposium and Exhibition on Gas Cleaning at High Temperatures, 22.-24.09.1999, Karlsruhe
SP  - 862
EP  - 873
PB  - KIT Institut für Mechanische Verfahrenstechnik und Mechanik
CY  - Karlsruhe
ER  - 
TY  - CHAP
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
T1  - Hybrid investigation of air transport processes in moderately sloped stepped spillway flows
T2  - E-proceedings of the 36th IAHR World Congress 28 June – 3 July, 2015, The Hague, the Netherlands
Y1  - 2015
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Langohr, Philipp
A1  - Bung, Daniel Bernhard
A1  - Crookston, Brian M.
ED  - Ortega-Sánchez, Miguel
T1  - Hybrid investigation of labyrinth weirs: Discharge capacity and energy dissipation
T2  - Proceedings of the 39th IAHR World Congress
N2  - The replacement of existing spillway crests or gates with labyrinth weirs is a proven techno-economical means to increase the discharge capacity when rehabilitating existing structures. However, additional information is needed regarding energy dissipation of such weirs, since due to the folded weir crest, a three-dimensional flow field is generated, yielding more complex overflow and energy dissipation processes. In this study, CFD simulations of labyrinth weirs were conducted 1) to analyze the discharge coefficients for different discharges to compare the Cd values to literature data and 2) to analyze and improve energy dissipation downstream of the structure. All tests were performed for a structure at laboratory scale with a height of approx. P = 30.5 cm, a ratio of the total crest length to the total width of 4.7, a sidewall angle of 10° and a quarter-round weir crest shape. Tested headwater ratios were 0.089 ≤ HT/P ≤ 0.817. For numerical simulations, FLOW-3D Hydro was employed, solving the RANS equations with use of finite-volume method and RNG k-ε turbulence closure. In terms of discharge capacity, results were compared to data from physical model tests performed at the Utah Water Research Laboratory (Utah State University), emphasizing higher discharge coefficients from CFD than from the physical model. For upstream heads, some discrepancy in the range of ± 1 cm between literature, CFD and physical model tests was identified with a discussion regarding differences included in the manuscript. For downstream energy dissipation, variable tailwater depths were considered to analyze the formation and sweep-out of a hydraulic jump. It was found that even for high discharges, relatively low downstream Froude numbers were obtained due to high energy dissipation involved by the three-dimensional flow between the sidewalls. The effects of some additional energy dissipation devices, e.g. baffle blocks or end sills, were also analyzed. End sills were found to be non-effective. However, baffle blocks with different locations may improve energy dissipation downstream of labyrinth weirs.
Y1  - 2022
SN  - 978-90-832612-1-8
U6  - https://doi.org/10.3850/IAHR-39WC252171192022738
SN  - 2521-7119 (print)
SN  - 2521-716X (online)
N1  - 39th IAHR World Congress, 19. - 24. Juni 2022, Granada
SP  - 2313
EP  - 2318
PB  - International Association for Hydro-Environment Engineering and Research (IAHR)
CY  - Madrid
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Tullis, Blake
T1  - Hydraulic Structures - ISHS2018 in Perspective
T2  - 7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May
Y1  - 2018
SN  - 978-0-692-13277-7
U6  - https://doi.org/10.15142/T3WH2B
ER  - 
TY  - JOUR
A1  - Erpicum, Sebastien
A1  - Crookston, Brian M.
A1  - Bombardelli, Fabian
A1  - Bung, Daniel Bernhard
A1  - Felder, Stefan
A1  - Mulligan, Sean
A1  - Oertel, Mario
A1  - Palermo, Michele
T1  - Hydraulic structures engineering: An evolving science in a changing world
JF  - Wires Water
Y1  - 2021
U6  - https://doi.org/10.1002/wat2.1505
SN  - 2049-1948
VL  - 8
IS  - 2
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Ahmed, H.
A1  - Schlenkhoff, A.
A1  - Bung, Daniel Bernhard
T1  - Hydrodynamic characteristics of vertical slotted wall breakwaters
T2  - Balance and uncertainty - water in a changing world :  proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia
Y1  - 2011
SN  - 978-0-85825-868-6
SP  - 1179
EP  - 1186
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Valero, Daniel
T1  - Image processing for bubble image velocimetry in self-aerated flows
T2  - E-proceedings of the 36th IAHR World Congress 28 June – 3 July, 2015, The Hague, the Netherlands
Y1  - 2015
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Valero, Daniel
ED  - Dewals, Benjamin
T1  - Image processing techniques for velocity estimation in highly aerated flows: bubble image velocimetry vs. optical flow
T2  - Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)
Y1  - 2016
SN  - 978-1-138-02977-4
SN  - 978-1-4987-8149-7 (eBook)
U6  - https://doi.org/10.1201/b21902-31
SP  - 151
EP  - 157
PB  - CRC Press
ER  - 
TY  - THES
A1  - Bung, Daniel Bernhard
T1  - Imaging techniques for investigation of free-surface flows in hydraulic laboratories
N2  - This thesis aims at the presentation and discussion of well-accepted and new
imaging techniques applied to different types of flow in common hydraulic
engineering environments. All studies are conducted in laboratory conditions and
focus on flow depth and velocity measurements. Investigated flows cover a wide
range of complexity, e.g. propagation of waves, dam-break flows, slightly and fully
aerated spillway flows as well as highly turbulent hydraulic jumps.
Newimagingmethods are compared to different types of sensorswhich are frequently
employed in contemporary laboratory studies. This classical instrumentation as well
as the general concept of hydraulic modeling is introduced to give an overview on
experimental methods.
Flow depths are commonly measured by means of ultrasonic sensors, also known as
acoustic displacement sensors. These sensors may provide accurate data with high
sample rates in case of simple flow conditions, e.g. low-turbulent clear water flows.
However, with increasing turbulence, higher uncertainty must be considered.
Moreover, ultrasonic sensors can provide point data only, while the relatively large
acoustic beam footprint may lead to another source of uncertainty in case of
relatively short, highly turbulent surface fluctuations (ripples) or free-surface
air-water flows. Analysis of turbulent length and time scales of surface fluctuations
from point measurements is also difficult. Imaging techniques with different
dimensionality, however, may close this gap. It is shown in this thesis that edge
detection methods (known from computer vision) may be used for two-dimensional
free-surface extraction (i.e. from images taken through transparant sidewalls in
laboratory flumes). Another opportunity in hydraulic laboratory studies comes with
the application of stereo vision. Low-cost RGB-D sensors can be used to gather
instantaneous, three-dimensional free-surface elevations, even in flows with very
high complexity (e.g. aerated hydraulic jumps). It will be shown that the uncertainty
of these methods is of similar order as for classical instruments.
Particle Image Velocimetry (PIV) is a well-accepted and widespread imaging
technique for velocity determination in laboratory conditions. In combination with
high-speed cameras, PIV can give time-resolved velocity fields in 2D/3D or even as
volumetric flow fields. PIV is based on a cross-correlation technique applied to small
subimages of seeded flows. The minimum size of these subimages defines the
maximum spatial resolution of resulting velocity fields. A derivative of PIV for
aerated flows is also available, i.e. the so-called Bubble Image Velocimetry (BIV). This
thesis emphasizes the capacities and limitations of both methods, using relatively
simple setups with halogen and LED illuminations. It will be demonstrated that
PIV/BIV images may also be processed by means of Optical Flow (OF) techniques.
OF is another method originating from the computer vision discipline, based on the
assumption of image brightness conservation within a sequence of images. The
Horn-Schunck approach, which has been first employed to hydraulic engineering
problems in the studies presented herein, yields dense velocity fields, i.e. pixelwise
velocity data. As discussed hereinafter, the accuracy of OF competes well with PIV
for clear-water flows and even improves results (compared to BIV) for aerated flow
conditions. In order to independently benchmark the OF approach, synthetic images
with defined turbulence intensitiy are used.
Computer vision offers new opportunities that may help to improve the
understanding of fluid mechanics and fluid-structure interactions in laboratory
investigations. In prototype environments, it can be employed for obstacle detection
(e.g. identification of potential fish migration corridors) and recognition (e.g. fish
species for monitoring in a fishway) or surface reconstruction (e.g. inspection of
hydraulic structures). It can thus be expected that applications to hydraulic
engineering problems will develop rapidly in near future. Current methods have not
been developed for fluids in motion. Systematic future developments are needed to
improve the results in such difficult conditions.
Y1  - 2023
U6  - https://doi.org/10.25926/BUW/0-172
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Feldmann, Markus
A1  - Kuhnhenne, Markus
A1  - Hellberg, Jan
T1  - Implementing a thermal activation system into a light-weight steel deck element
T2  - Eurosteel 2008 : 5th European Conference on Steel and Composite Structures ; research, practice, new materials ; 3rd to 5th September 2008, Graz, Austria / ed. by Robert Ofner ...
Y1  - 2008
SN  - 92-0147-000-90
SP  - 941
EP  - 946
PB  - ECCS, European Convention for Construction Steelwork
CY  - Brussels
ER  - 
TY  - CHAP
A1  - Döring, Bernd
A1  - Sedlacek, Gerhard
T1  - Improvement of thermal comfort in light weight buildings made of steel with new concepts for slab systems
T2  - 10th Nordic Steel Construction Conference, Copenhagen, Denmark 7-9. June 2004: NSCC 2004 : proceedings
Y1  - 2004
SP  - 35
EP  - 44
PB  - Danish Steel Inst.
CY  - Copenhagen
ER  - 
TY  - JOUR
A1  - Kuhnhenne, Markus
A1  - Reger, Vitali
A1  - Pyschny, Dominik
A1  - Döring, Bernd
T1  - Influence of airtightness of steel sandwich panel joints on heat losses
JF  - E3S Web of Conferences 12th Nordic Symposium on Building Physics (NSB 2020)
N2  - Energy saving ordinances requires that buildings must be designed in such a way that the heat transfer surface including the joints is permanently air impermeable. The prefabricated roof and wall panels in lightweight steel constructions are airtight in the area of the steel covering layers. The sealing of the panel joints contributes to fulfil the comprehensive requirements for an airtight building envelope. To improve the airtightness of steel sandwich panels, additional sealing tapes can be installed in the panel joint. The influence of these sealing tapes was evaluated by measurements carried out by the RWTH Aachen University - Sustainable Metal Building Envelopes. Different installation situations were evaluated by carrying out airtightness tests for different joint distances. In addition, the influence on the heat transfer coefficient was also evaluated using the Finite Element Method (FEM). The combination of obtained air volume flow and transmission losses enables to create an "effective heat transfer coefficient" due to transmission and infiltration. This summarizes both effects in one value and is particularly helpful for approximate calculations on energy efficiency.
Y1  - 2020
U6  - https://doi.org/10.1051/e3sconf/202017205008
VL  - 172
IS  - Art. 05008
PB  - EDP Sciences
CY  - Les Ulis
ER  - 
TY  - CHAP
A1  - Ziller, Claudia
A1  - Döring, Bernd
ED  - Carmeliet, J.
ED  - Hens, H.
ED  - Vermeir, G.
T1  - Influence of the external dynamic wind pressure on the ventilation of double facades
T2  - Research in building physics: proceedings of the Second International Conference on Building Physics : Leuven, Belgium, 14-18 September 2003
Y1  - 2003
SN  - 9058095657, 9789058095657
SP  - 527
EP  - 533
PB  - Taylor and Francis
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Oertel, Mario
A1  - Bung, Daniel Bernhard
T1  - Initial stage of two-dimensional dam-break waves: laboratory versus VOF
JF  - Journal of hydraulic research
N2  - Since several decades, dam-break waves have been of main research interest. Mathematical approaches have been developed by analytical, physical and numerical models within the past 120 years. During the past 10 years, the number of research investigations has increased due to improved measurement techniques as well as significantly increased computer memories and performances. In this context, the present research deals with the initial stage of two-dimensional dam-break waves by comparing physical and numerical model results as well as analytical approaches. High-speed images and resulting particle image velocimetry calculations are thereby compared with the numerical volume-of-fluid (VOF) method, included in the commercial code FLOW-3D. Wave profiles and drag forces on placed obstacles are analysed in detail. Generally, a good agreement between the laboratory and VOF results is found.
KW  - VOF
KW  - PIV
KW  - physical model
KW  - numerical model
KW  - drag force
KW  - dam-break
Y1  - 2012
U6  - https://doi.org/10.1080/00221686.2011.639981
SN  - 1814-2079 (E-Journal); 0022-1686 (Print)
VL  - 50
IS  - 1
SP  - 89
EP  - 97
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Biener, Ernst
A1  - Boyken, P.
A1  - Sasse, T.
T1  - Integrated dredged material management system of Bremen-Seehausen
JF  - Sardinia 97 : proceedings ; [13 - 17 October 1997, S. Margherita di Pula - Cagliari, Sardinia, Italy] / Sixth International Landfill Symposium. Ed.: Thomas H. Christensen... - Bd. 5 : Landfill regulations, waste characteristics, landfilling in middle and lower income countries, industrial wastes and monolandfills
Y1  - 1997
N1  - International Landfill Symposium <6, 1997, Santa Margherita, Pula>
SP  - 497
EP  - 502
PB  - CISA, Environmental Sanitary Engineering Centre
CY  - Cagliari
ER  - 
TY  - CHAP
A1  - Schulze-Buxloh, Lina
A1  - Groß, Rolf Fritz
T1  - Interdisciplinary Course Smart Building Engineering: A new approach of teaching freshmen in remote teamwork project under pandemic restrictions
T2  - New Perspectives in Science Education - International Conference
N2  - In the context of the Corona pandemic and its impact on teaching like digital lectures and exercises a new concept especially for freshmen in demanding courses of Smart Building Engineering became necessary. As there were hardly any face-to-face events at the university, the new teaching concept should enable a good start into engineering studies under pandemic conditions anyway and should also replace the written exam at the end. The students should become active themselves in small teams instead of listening passively to a lecture broadcast online with almost no personal contact. For this purpose, a role play was developed in which the freshmen had to work out a complete solution to the realistic problem of designing, construction planning and implementing a small guesthouse. Each student of the team had to take a certain role like architect, site manager, BIM-manager, electrician and the technitian for HVAC installations. Technical specifications must be complied with, as well as documentation, time planning and cost estimate. The final project folder had to contain technical documents like circuit diagrams for electrical components, circuit diagrams for water and heating, design calculations and components lists. On the other hand construction schedule, construction implementation plan, documentation of the construction progress and minutes of meetings between the various trades had to be submitted as well. In addition to the project folder, a model of the construction project must also be created either as a handmade model or as a digital 3D-model using Computer-aided design (CAD) software. The first steps in the field of Building information modelling (BIM) had also been taken by creating a digital model of the building showing the current planning status in real time as a digital twin. This project turned out to be an excellent training of important student competencies like teamwork, communication skills, and self -organisation and also increased motivation to work on complex technical questions. The aim of giving the student a first impression on the challenges and solutions in building projects with many different technical trades and their points of view was very well achieved and should be continued in the future.
KW  - Freshmen
KW  - roleplay
KW  - Smart Building Engineering
KW  - BIM
KW  - remote teamwork
Y1  - 2021
N1  - New Perspectives in Science Education - 10th Edition, 18-19 March 2021, Fully Virtual Conference
PB  - Filodiritto
CY  - Bologna
ER  - 
TY  - CHAP
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
T1  - Interfacial velocity estimation in highly aerated stepped spillway flows with a single tip fibre optical probe and Artificial Neural Networks
T2  - 6th IAHR International Junior Researcher and Engineer Workshop on Hydraulic Structures, May 30th to June 1st 2016. Lübeck, Germany
N2  - Air-water flows can be found in different engineering applications: from nuclear engineering to huge hydraulic structures. In this paper, a single tip fibre optical probe has been used to record high frequency (over 1 MHz) phase functions at different locations of a stepped spillway. These phase functions have been related to the interfacial velocities by means of Artificial Neural Networks (ANN) and the measurements of a classical double tip conductivity probe. Special attention has been put to the input selection and the ANN dimensions. Finally, ANN have shown to be able to link the signal rising times and plateau shapes to the air-water interfacial velocity.
Y1  - 2016
U6  - https://doi.org/10.15142/T3Q590
ER  - 
TY  - CHAP
A1  - Heinz, G.
A1  - Oertel, Mario
A1  - Bung, Daniel Bernhard
ED  - Janssen, Robert
T1  - Investigations on a cooling water system for a gas tubine facility concerning air vortexes and sediment transport
T2  - Hydraulic structures: useful water harvesting systems or relics? : Third International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS'10) : Edinburgh, Scotland, U.K., 2-3 May 2010
Y1  - 2010
SN  - 9781742720159
SP  - 109
EP  - 116
PB  - School of Civil Engineering, The University of Queensland
CY  - Brisbane
ER  - 
TY  - CHAP
A1  - Uibel, Thomas
A1  - Blaß, Hans-Joachim
T1  - Joints with Dowel Type Fasteners in CLT structures
T2  - Focus solid timber solutions : European Conference on Cross Laminated Timber (CLT); May 21-22, 2013, Graz University of Technology, Austria
Y1  - 2013
SN  - 978-1-85790-181-8 ; 1-85790-181-9
SP  - 119
EP  - 134
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
ED  - Rowinski, Pawel
T1  - Laboratory models of free-surface flows
T2  - Rivers - physical, fluvial and environmental processes
N2  - Hydraulic modeling is the classical approach to investigate and describe complex fluid motion. Many empirical formulas in the literature used for the hydraulic design of river training measures and structures have been developed using experimental data from the laboratory. Although computer capacities have increased to a high level which allows to run complex numerical simulations on standard workstation nowadays, non-standard design of structures may still raise the need to perform physical model investigations. These investigations deliver insight into details of flow patterns and the effect of varying boundary conditions. Data from hydraulic model tests may be used for calibration of numerical models as well. As the field of hydraulic modeling is very complex, this chapter intends to give a short overview on capacities and limits of hydraulic modeling in regard to river flows and hydraulic structures only. The reader shall get a first idea of modeling principles and basic considerations. More detailed information can be found in the references.
KW  - Physical modeling
KW  - Similitude
KW  - Open channels
KW  - Hydraulic structures
Y1  - 2015
SN  - 978-3-319-17718-2 ; 978-3-319-17719-9
U6  - https://doi.org/10.1007/978-3-319-17719-9_9
SP  - 213
EP  - 228
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Feldmann, Markus
A1  - Pyschny, D.
A1  - Döring, Bernd
A1  - Kuhnhenne, Markus
T1  - Life cycle assessment of steel constructions
T2  - Life-cycle and sustainability of civil infrastructure systems : proceedings of the Third International Symposium on Life-Cycle Civil Engineering (IALCCE'12) : Vienna, Austria, October 3-6, 2012
Y1  - 2012
SN  - 978-0-203-10336-4
SP  - 321
PB  - Taylor and Francis
CY  - Hoboken
ER  - 
TY  - CHAP
A1  - Uibel, Thomas
A1  - Blaß, Hans Joachim
T1  - Load Carrying Capacity of Joints with Dowel Type Fasteners in Solid Wood Panels
T2  - Proceedings. CIB-W18 Meeting 2006, Florence, Italy 2006
Y1  - 2006
SN  - 0945-6996
N1  - Paper 39-7-5
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Oertel, Mario
T1  - Manipulation of non-aerated cavity flow on a stepped spillway model
T2  - 3rd European IAHR Congress : April 14 – 16, 2014, Porto
Y1  - 2014
PB  - Univ. of Porto
CY  - Porto
ER  - 
TY  - JOUR
A1  - Höttges, Jörg
A1  - Arnold, Uwe
A1  - Rouvé, Gerhard
T1  - Measurement of transverse mixing using digital image acquisition
JF  - Mixing and transport in the environment : a memorial volume for Catherine M. Allen (1954-1991) / ed. by Keith J. Beven
Y1  - 1994
SN  - 0471941425
PB  - Wiley
CY  - Chichester [u.a.]
ER  - 
TY  - JOUR
A1  - Leandro, J.
A1  - Bung, Daniel Bernhard
A1  - Carvalho, R.
T1  - Measuring void fraction and velocity fields of a stepped spillway for skimming flow using non-intrusive methods
JF  - Experiments in fluids
Y1  - 2014
U6  - https://doi.org/10.1007/s00348-014-1732-6
SN  - 0723-4864 (Print) ; 1432-1114 (Online)
IS  - 55
SP  - Art. 1732
PB  - Springer Nature
CY  - Heidelberg
ER  - 
TY  - BOOK
A1  - Kettern, Jürgen
T1  - Mechanical and biological treatment of waste after separate collection / R. Damiecki; J.T. Kettern. Italian Ministry of Enviroment
Y1  - 1993
N1  - SARDINIA 93 ; 2 ;  International Landfill Symposium ; (4. : ; 1993.10.11-15 : ; S. Margherita di Pula)
PB  - Eigenverlag
CY  - Caglieri
ER  - 
TY  - CHAP
A1  - Schulze-Buxloh, Lina
A1  - Groß, Rolf Fritz
T1  - Miniature urban farming plant: a complex educational “Toy” for engineering students
T2  - The Future of Education 11th Edition 2021
N2  - Urban farming is an innovative and sustainable way of food production and is becoming more and more important in smart city and quarter concepts. It also enables the production of certain foods in places where they usually dare not produced, such as production of fish or shrimps in large cities far away from the coast. Unfortunately, it is not always possible to show students such concepts and systems in real life as part of courses: visits of such industry plants are sometimes not possible because of distance or are permitted by the operator for hygienic reasons. In order to give the students the opportunity of getting into contact with such an urban farming system and its complex operation, an industrial urban farming plant was set up on a significantly smaller scale. Therefore, all needed technical components like water aeriation, biological and mechanical filtration or water circulation have been replaced either by aquarium components or by self-designed parts also using a 3D-printer. Students from different courses like mechanical engineering, smart building engineering, biology, electrical engineering, automation technology and civil engineering were involved in this project. This “miniature industrial plant” was also able to start operation and has now been running for two years successfully. Due to Corona pandemic, home office and remote online lectures, the automation of this miniature plant should be brought to a higher level in future for providing a good control over the system and water quality remotely. The aim of giving the student a chance to get to know the operation of an urban farming plant was very well achieved and the students had lots of fun in “playing” and learning with it in a realistic way.
KW  - urban farming
KW  - food production
KW  - smart engineering
KW  - 3D printing
KW  - sustainability
Y1  - 2021
N1  - FOE 2021 : The Future of Education International Conference – Fully Virtual Edition; 01.07.2021-02.07.2021; Florence, Italy
ER  - 
TY  - JOUR
A1  - Biener, Ernst
A1  - Sasse, T.
A1  - Arnold, J.
A1  - Woltering, S.
T1  - New treatment of harbour sludge in Bremen and Bremerhaven  /  E. Biener ; T. Sasse ; J. Arnold ; S. Woltering ; N. Binder
JF  - Characterisation and treatment of sediments : Antwerpen, Belgium, September 15 - 17, 1999 ; [preceded by 12th International Harbour Congress] ; proceedings / CATS 4. Ed.: G. De Schutter. Organized by: Technologisch Instituut, Koninklijke Vlaamse Ingenieursvereniging
Y1  - 1999
SN  - 9076019118
N1  - CATS <4, 1999, Anvers>
SP  - 115
EP  - 122
PB  - Technolog. Inst.
CY  - Anvers
ER  - 
TY  - JOUR
A1  - Bung, Daniel Bernhard
T1  - Non-intrusive detection of air–water surface roughness in self-aerated chute flows
JF  - Journal of hydraulic research
Y1  - 2013
SN  - 1814-2079 (E-Journal); 0022-1686 (Print)
VL  - Vol. 51
IS  - Iss. 3
SP  - 322
EP  - 329
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
T1  - Non-intrusive measuring of air-water flow properties in self-aerated stepped spillway flow
T2  - Balance and uncertainty - water in a changing world :  proceedings of the 34th IAHR world congress ; 33rd Hydrology and Water Resources Symposium ; 10th Conference on Hydraulics in Water Engineering ; 26 June - 1 July 2011, Brisbane, Australia
Y1  - 2011
SN  - 978-0-85825-868-6
SP  - 2380
EP  - 2387
ER  - 
TY  - CHAP
A1  - Kirsch, Ansgar
T1  - Numerical investigation of the face stability of shallow tunnels in sand
T2  - Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...
Y1  - 2010
SN  - 978-0-415-59239-0
SP  - 779
EP  - 784
PB  - Taylor and Francis
CY  - London
ER  - 
TY  - CHAP
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
A1  - Crookston, B. M.
A1  - Matos, J.
ED  - Crookston, B.
ED  - Tullis, B.
T1  - Numerical investigation of USBR type III stilling basin performance downstream of smooth and stepped spillways
BT  - Session 1: Hydraulic structures
T2  - Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016
Y1  - 2016
SN  - 978-1-884575-75-4
U6  - https://doi.org/10.15142/T340628160853
SP  - 635
EP  - 646
ER  - 
TY  - CHAP
A1  - Kirsch, Ansgar
A1  - Marcher, Thomas
T1  - Numerical prediction of time-dependent rock swelling based on an example of a major tunnel project in Ontario/Canada
T2  - Numerical methods in geotechnical engineering : (NUMGE 2010) : proceedings of the seventh European Conference on Numerical Methods in Geotechnical Engineering, Trondheim, Norway, 2 - 4 June 2010 / ed. by Thomas Benz ...
Y1  - 2010
SN  - 978-0-415-59239-0
SP  - 297
EP  - 302
PB  - Taylor and Francis
CY  - London
ER  - 
TY  - CHAP
A1  - Oertel, Mario
A1  - Balmes, Jan P.
A1  - Bung, Daniel Bernhard
T1  - Numerical simulation of erosion processes on crossbar block ramps
T2  - E-proceedings of the 36th IAHR World Congress 28 June – 3 July, 2015, The Hague, the Netherlands
Y1  - 2015
SP  - 1
EP  - 8
ER  - 
TY  - JOUR
A1  - Valero, Daniel
A1  - Viti, Nicolo
A1  - Gualtieri, Carlo
T1  - Numerical Simulation of Hydraulic Jumps. Part 1: Experimental Data for Modelling Performance Assessment
JF  - Water
Y1  - 2019
U6  - https://doi.org/10.3390/w11010036
SN  - 2073-4441
VL  - 11
IS  - 1
SP  - Art. Nr. 36
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Viti, Nicolo
A1  - Valero, Daniel
A1  - Gualtieri, Carlo
T1  - Numerical Simulation of Hydraulic Jumps. Part 2: Recent Results and Future Outlook
JF  - Water
Y1  - 2019
U6  - https://doi.org/10.3390/w11010028
SN  - 2073-4441
VL  - 11
IS  - 1
SP  - Art. Nr. 28
ER  - 
TY  - CHAP
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
A1  - Erpicum, Sebastien
A1  - Dewals, Benjamin
T1  - Numerical study of turbulent oscillations around a cylinder: RANS capabilities and sensitivity analysis
T2  - Proceedings of the 37th IAHR World Congress August 13 – 18, 2017, Kuala Lumpur, Malaysia
Y1  - 2017
SN  - 2521-716X
SP  - 3126
EP  - 3135
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Fischer, B.
T1  - Objective condition assessment of sewer systems
T2  - Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do Céu Almeida
Y1  - 2009
SN  - 9781843391869
SP  - 521
EP  - 534
PB  - IWA Publ.
CY  - London
ER  - 
TY  - JOUR
A1  - Zhang, G.
A1  - Valero, Daniel
A1  - Bung, Daniel Bernhard
A1  - Chanson, H.
T1  - On the estimation of free-surface turbulence using ultrasonic sensors
JF  - Flow Measurement and Instrumentation
N2  - Accurate determination of free-surface dynamics has attracted much research attention during the past decade and has important applications in many environmental and water related areas. In this study, the free-surface dynamics in several turbulent flows commonly found in nature were investigated using a synchronised setup consisting of an ultrasonic sensor and a high-speed video camera. Basic sensor capabilities were examined in dry conditions to allow for a better characterisation of the present sensor model. The ultrasonic sensor was found to adequately reproduce free-surface dynamics up to the second order, especially in two-dimensional scenarios with the most energetic modes in the low frequency range. The sensor frequency response was satisfactory in the sub-20 Hz band, and its signal quality may be further improved by low-pass filtering prior to digitisation. The application of the USS to characterise entrapped air in high-velocity flows is also discussed.
Y1  - 2018
U6  - https://doi.org/10.1016/j.flowmeasinst.2018.02.009
SN  - 0955-5986
VL  - 60
SP  - 171
EP  - 184
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Duran Paredes, Ludwin
A1  - Mottaghy, Darius
A1  - Herrmann, Ulf
A1  - Groß, Rolf Fritz
T1  - Online ground temperature and soil moisture monitoring of a shallow geothermal system with non-conventional components
T2  - EGU General Assembly 2020
N2  - We present first results from a newly developed monitoring station for a closed loop geothermal heat pump test installation at our campus, consisting of helix coils and plate heat exchangers, as well as an ice-store system. There are more than 40 temperature sensors and several soil moisture content sensors distributed around the system, allowing a detailed monitoring under different operating conditions.In the view of the modern development of renewable energies along with the newly concepts known as Internet of Things and Industry 4.0 (high-tech strategy from the German government), we created a user-friendly web application, which will connect the things (sensors) with the open network (www). Besides other advantages, this allows a continuous remote monitoring of the data from the numerous sensors at an arbitrary sampling rate.Based on the recorded data, we will also present first results from numerical simulations, taking into account all relevant heat transport processes.The aim is to improve the understanding of these processes and their influence on the thermal behavior of shallow geothermal systems in the unsaturated zone. This will in turn facilitate the prediction of the performance of these systems and therefore yield an improvement in their dimensioning when designing a specific shallow geothermal installation.
Y1  - 2020
N1  - EGU General Assembly 2020, Online, 4–8 May 2020
ER  -