@inproceedings{BungLangohrWaldenberger2023, author = {Bung, Daniel Bernhard and Langohr, Phillip and Waldenberger, Lisa}, title = {Influence of cycle number in CFD studies of labyrinth weirs}, series = {Proceedings of the 40th IAHR World Congress (Vienna, 2023)}, booktitle = {Proceedings of the 40th IAHR World Congress (Vienna, 2023)}, editor = {Habersack, Helmut and Tritthart, Michael}, publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)}, address = {Madrid}, isbn = {978-90-833476-1-5}, issn = {L 2521-7119 (online)}, doi = {10.3850/978-90-833476-1-5_iahr40wc-p0531-cd}, year = {2023}, abstract = {The major advantage of labyrinth weirs over linear weirs is hydraulic efficiency. In hydraulic modeling efforts, this strength contrasts with limited pump capacity as well as limited computational power for CFD simulations. For the latter, reducing the number of investigated cycles can significantly reduce necessary computational time. In this study, a labyrinth weir with different cycle numbers was investigated. The simulations were conducted in FLOW-3D HYDRO as a Large Eddy Simulation. With a mean deviation of 1.75 \% between simulated discharge coefficients and literature design equations, a reasonable agreement was found. For downstream conditions, overall consistent results were observed as well. However, the orientation of labyrinth weirs with a single cycle should be chosen carefully under consideration of the individual research purpose.}, language = {en} } @inproceedings{BungOertelSchlenkhoffetal.2010, author = {Bung, Daniel Bernhard and Oertel, M. and Schlenkhoff, A. and Schlurmann, Torsten}, title = {Flash flood awareness and prevention in Germany}, series = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings}, booktitle = {Early warning for flash floods : international workshop, Praha 2011 : workshop proceedings}, editor = {Obrusnik, Ivan}, organization = {Czech Hydrometeorological Institute}, isbn = {978-80-86690-91-9}, pages = {34 -- 40}, year = {2010}, language = {en} } @inproceedings{BungOertel2019, author = {Bung, Daniel Bernhard and Oertel, Mario}, title = {Wave breaking over a submerged horizontal plate: Optical Flow, LES and RANS}, series = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, booktitle = {E-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panama}, doi = {10.3850/38WC092019-0509}, pages = {3690 -- 3698}, year = {2019}, language = {en} } @inproceedings{BungOertel2014, author = {Bung, Daniel Bernhard and Oertel, Mario}, title = {Manipulation of non-aerated cavity flow on a stepped spillway model}, series = {3rd European IAHR Congress : April 14 - 16, 2014, Porto}, booktitle = {3rd European IAHR Congress : April 14 - 16, 2014, Porto}, publisher = {Univ. of Porto}, address = {Porto}, organization = {International Association of Hydro-Environment Engineering and Research}, year = {2014}, language = {en} } @inproceedings{BungPagliara2013, author = {Bung, Daniel Bernhard and Pagliara, S.}, title = {Proceedings of the International Workshop on Hydraulic Design of Low-Head Structures : Aachen, Germany, February, 20-22, 2013 / D. Bung ; S. Pagliara (eds.)}, publisher = {Bundesanst. f{\"u}r Wasserbau}, address = {Karlsruhe}, isbn = {978-3-939230-04-5}, pages = {X, 230 S. + 1 CD-ROM}, year = {2013}, language = {en} } @inproceedings{BungSchlenkhoff2010, author = {Bung, Daniel Bernhard and Schlenkhoff, Andreas}, title = {Self-aerated skimming flow on embankment stepped spillways : the effect of additional micro-roughness on energy dissipation and oxygen transfer}, series = {Proceedings from first IAHR European congress : May 2010, Edinburgh}, booktitle = {Proceedings from first IAHR European congress : May 2010, Edinburgh}, publisher = {Heriot-Watt University, School of the Built Environment}, address = {Edinburgh}, organization = {International Association for Hydraulic Engineering and Research}, isbn = {9780956595102}, pages = {Artikelkennnummer HSIIId}, year = {2010}, language = {en} } @inproceedings{BungSchlenkhoff2008, author = {Bung, Daniel Bernhard and Schlenkhoff, Andreas}, title = {Optimization of the reaeration potential on embankment stepped spillways in skimming flow regime}, series = {Hydraulic structures : proceedings of the second International Junior Researcher and Engineer Workshop on Hydraulic Structures, Pisa, Italy, 30 July-1 August 2008}, booktitle = {Hydraulic structures : proceedings of the second International Junior Researcher and Engineer Workshop on Hydraulic Structures, Pisa, Italy, 30 July-1 August 2008}, editor = {Pagliara, Stefano}, organization = {International Junior Researcher and Engineer Workshop on Hydraulic Structures <2, 2008, Pisa>}, isbn = {978-88-8492-568-8}, pages = {97 -- 106}, year = {2008}, language = {en} } @inproceedings{BungSchlenkhoffOertel2009, author = {Bung, Daniel Bernhard and Schlenkhoff, Andreas and Oertel, M.}, title = {Self-aerated skimming flow on embankment stepped spillways}, series = {Water engineering for sustainable environment : 33rd IAHR congress ; 9 - 14 August 2009, Vancouver, British Columbia, Canada}, booktitle = {Water engineering for sustainable environment : 33rd IAHR congress ; 9 - 14 August 2009, Vancouver, British Columbia, Canada}, organization = {International Association for Hydraulic Engineering and Research}, isbn = {9789078046080}, pages = {1 CD-ROM}, year = {2009}, language = {en} } @inproceedings{BungSunMeirelesetal.2012, author = {Bung, Daniel Bernhard and Sun, Q. and Meireles, I. and Matos, J. and Viseu, T.}, title = {USBR type III stilling basin performance for steep stepped spillways}, series = {Hydraulic structures into the 21st century : 4th IAHR International Symposium on Hydraulic Structures : 9.-11.2.2012, Porto}, booktitle = {Hydraulic structures into the 21st century : 4th IAHR International Symposium on Hydraulic Structures : 9.-11.2.2012, Porto}, organization = {International Symposium on Hydraulic Structures <4, 2012, Porto>}, isbn = {978-989-8509-01-7}, pages = {Elektronisch publiziert}, year = {2012}, language = {en} } @inproceedings{BungTullis2018, author = {Bung, Daniel Bernhard and Tullis, Blake}, title = {Hydraulic Structures - ISHS2018 in Perspective}, series = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May}, booktitle = {7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May}, isbn = {978-0-692-13277-7}, doi = {10.15142/T3WH2B}, pages = {9 seiten}, year = {2018}, language = {en} } @inproceedings{BungValero2017, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {FlowCV - An open-source toolbox for computer vision applications in turbulent flows}, series = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia}, booktitle = {Proceedings of the 37th IAHR World Congress August 13 - 18, 2017, Kuala Lumpur, Malaysia}, issn = {2521-716X}, pages = {5356 -- 5365}, year = {2017}, language = {en} } @inproceedings{BungValero2016, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {Application of the optical flow method to velocity determination in hydraulic structure models}, series = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, booktitle = {Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures, Portland, OR, 27-30 June 2016}, editor = {Crookston, B. and Tullis, B.}, isbn = {978-1-884575-75-4}, doi = {10.15142/T3150628160853}, pages = {223 -- 232}, year = {2016}, language = {en} } @inproceedings{BungValero2016, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {Image processing techniques for velocity estimation in highly aerated flows: bubble image velocimetry vs. optical flow}, series = {Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)}, booktitle = {Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016)}, editor = {Dewals, Benjamin}, publisher = {CRC Press}, isbn = {978-1-138-02977-4}, doi = {10.1201/b21902-31}, pages = {151 -- 157}, year = {2016}, language = {en} } @inproceedings{BungValero2015, author = {Bung, Daniel Bernhard and Valero, Daniel}, title = {Image processing for bubble image velocimetry in self-aerated flows}, series = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands}, booktitle = {E-proceedings of the 36th IAHR World Congress 28 June - 3 July, 2015, The Hague, the Netherlands}, organization = {IAHR World Congress <36, 2015, Den Haag>}, pages = {1 -- 8}, year = {2015}, language = {en} } @inproceedings{BuniatyanHuckPoghossianetal.2014, author = {Buniatyan, V. V. and Huck, Christina and Poghossian, Arshak and Sch{\"o}ning, Michael Josef and Rustamyan, L. G. and Hovnikyan, H. H.}, title = {Equivalent circuit and optimization of impedance characteristics of an electrolyte conductivity sensor}, series = {Proceedings of State Engineering University Armenia : Series Information technologies, electronics, radio engineering}, volume = {Iss. 17}, booktitle = {Proceedings of State Engineering University Armenia : Series Information technologies, electronics, radio engineering}, number = {No. 1}, pages = {69 -- 76}, year = {2014}, language = {en} } @inproceedings{BurgazziFioriniDeMagistrisetal.1998, author = {Burgazzi, Luciano and Fiorini, Gian Luigi and De Magistris, F. and Lensa, Werner von and Staat, Manfred and Atles, J.}, title = {Reliability Assessment of Passive Safety Systems}, series = {Proceedings of the 6th International Conference on Nuclear Engineering : ICONE : May 10 - 14, 1998, San Diego, Calif.}, booktitle = {Proceedings of the 6th International Conference on Nuclear Engineering : ICONE : May 10 - 14, 1998, San Diego, Calif.}, publisher = {American Society of Mechanical Engineers}, address = {New York}, year = {1998}, language = {en} } @inproceedings{BurgethKleefeldZhangetal.2022, author = {Burgeth, Bernhard and Kleefeld, Andreas and Zhang, Eugene and Zhang, Yue}, title = {Towards Topological Analysis of Non-symmetric Tensor Fields via Complexification}, series = {Discrete Geometry and Mathematical Morphology}, booktitle = {Discrete Geometry and Mathematical Morphology}, editor = {Baudrier, {\´E}tienne and Naegel, Beno{\^i}t and Kr{\"a}henb{\"u}hl, Adrien and Tajine, Mohamed}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-19897-7}, doi = {10.1007/978-3-031-19897-7_5}, pages = {48 -- 59}, year = {2022}, abstract = {Fields of asymmetric tensors play an important role in many applications such as medical imaging (diffusion tensor magnetic resonance imaging), physics, and civil engineering (for example Cauchy-Green-deformation tensor, strain tensor with local rotations, etc.). However, such asymmetric tensors are usually symmetrized and then further processed. Using this procedure results in a loss of information. A new method for the processing of asymmetric tensor fields is proposed restricting our attention to tensors of second-order given by a 2x2 array or matrix with real entries. This is achieved by a transformation resulting in Hermitian matrices that have an eigendecomposition similar to symmetric matrices. With this new idea numerical results for real-world data arising from a deformation of an object by external forces are given. It is shown that the asymmetric part indeed contains valuable information.}, language = {en} } @inproceedings{BuschkuehleSchuermannWollert2009, author = {Buschk{\"u}hle, Peter and Sch{\"u}rmann, Volker and Wollert, J{\"o}rg}, title = {Abstraction of wireless communication by a convergence middleware in conjunction with a XML-configuration}, series = {Information technology and electrical engineering : devices and systems, materials and technologies for the future ; Ilmenau 07 - 10 September 2009 ; 54. IWK Internationales Wissenschaftliches Kolloquium}, booktitle = {Information technology and electrical engineering : devices and systems, materials and technologies for the future ; Ilmenau 07 - 10 September 2009 ; 54. IWK Internationales Wissenschaftliches Kolloquium}, publisher = {Techn. Univ.}, address = {Ilmenau}, isbn = {978-3-938843-44-4}, pages = {95 -- 96}, year = {2009}, language = {en} } @inproceedings{Butenweg2022, author = {Butenweg, Christoph}, title = {Seismic design and evaluation of industrial facilities}, series = {The Third European Conference on Earthquake Engineering and Seismology}, booktitle = {The Third European Conference on Earthquake Engineering and Seismology}, editor = {Vacareanu, Radu and Ionescu, Constantin}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-15103-3}, issn = {2524-342X}, doi = {10.1007/978-3-031-15104-0}, pages = {449 -- 464}, year = {2022}, abstract = {Industrial facilities must be thoroughly designed to withstand seismic actions as they exhibit an increased loss potential due to the possibly wideranging damage consequences and the valuable process engineering equipment. Past earthquakes showed the social and political consequences of seismic damage to industrial facilities and sensitized the population and politicians worldwide for the possible hazard emanating from industrial facilities. However, a holistic approach for the seismic design of industrial facilities can presently neither be found in national nor in international standards. The introduction of EN 1998-4 of the new generation of Eurocode 8 will improve the normative situation with specific seismic design rules for silos, tanks and pipelines and secondary process components. The article presents essential aspects of the seismic design of industrial facilities based on the new generation of Eurocode 8 using the example of tank structures and secondary process components. The interaction effects of the process components with the primary structure are illustrated by means of the experimental results of a shaking table test of a three story moment resisting steel frame with different process components. Finally, an integrated approach of digital plant models based on building information modelling (BIM) and structural health monitoring (SHM) is presented, which provides not only a reliable decision-making basis for operation, maintenance and repair but also an excellent tool for rapid assessment of seismic damage.}, language = {en} } @inproceedings{Butenweg2021, author = {Butenweg, Christoph}, title = {Integrated approach for monitoring and management of buildings with digital building models and modern sensor technologies}, series = {Proceedings of the International Conference Civil Engineering 2021 - Achievements and Visions}, booktitle = {Proceedings of the International Conference Civil Engineering 2021 - Achievements and Visions}, editor = {Kuzmanović, Vladan and Ignjatović, Ivan}, publisher = {University of Belgrade}, address = {Belgrade}, pages = {67 -- 75}, year = {2021}, abstract = {Nowadays modern high-performance buildings and facilities are equipped with monitoring systems and sensors to control building characteristics like energy consumption, temperature pattern and structural safety. The visualization and interpretation of sensor data is typically based on simple spreadsheets and non-standardized user-oriented solutions, which makes it difficult for building owners, facility managers and decision-makers to evaluate and understand the data. The solution of this problem in the future are integrated BIM-Sensor approaches which allow the generation of BIM models incorporating all relevant information of monitoring systems. These approaches support both the dynamic visualization of key structural performance parameters, the effective long-term management of sensor data based on BIM and provide a user-friendly interface to communicate with various stakeholders. A major benefit for the end user is the use of the BIM software architecture, which is the future standard anyway. In the following, the application of the integrated BIM-Sensor approach is illustrated for a typical industrial facility as a part of an early warning and rapid response system for earthquake events currently developed in the research project "ROBUST" with financial support by the German Federal Ministry for Economic Affairs and Energy (BMWI).}, language = {en} }