@article{BuniatyanHuckPoghossianetal.2013,
  author    = {Buniatyan, V. and Huck, Christina and Poghossian, Arshak and Aroutiounian, V. M. and Sch{\"o}ning, Michael Josef},
  title     = {BaxSr1-x TiO3/pc-Si heterojunction},
  series = {Armenian journal of physics},
  volume    = {6},
  journal   = {Armenian journal of physics},
  number    = {4},
  publisher = {National Academy of Sciences of Armenia},
  address   = {Yerevan},
  issn      = {1829-1171},
  pages     = {177 -- 187},
  year      = {2013},
  language  = {en}
}
@article{BuniatyanHuckPoghossianetal.2013,
  author    = {Buniatyan, V. and Huck, Christina and Poghossian, Arshak and Aroutiounian, V. M. and Sch{\"o}ning, Michael Josef},
  title     = {BaxSr1-x TiO3/pc-Si heterojunction capacitance},
  series = {Armenian journal of physics},
  volume    = {6},
  journal   = {Armenian journal of physics},
  number    = {4},
  publisher = {National Academy of Sciences of Armenia},
  address   = {Yerevan},
  issn      = {1829-1171},
  pages     = {188 -- 197},
  year      = {2013},
  language  = {en}
}
@inproceedings{BungValeroHermens2018,
  author    = {Bung, Daniel Bernhard and Valero, Daniel and Hermens, G.},
  title     = {Hybrid investigation on the hydraulic performance of a new trapezoidal fishway},
  series = {7th IAHR International Symposium on Hydraulic Structures, ISHS 2018},
  booktitle = {7th IAHR International Symposium on Hydraulic Structures, ISHS 2018},
  isbn      = {978-069213277-7},
  doi       = {10.15142/T3S06R},
  pages     = {184 -- 193},
  year      = {2018},
  language  = {de}
}
@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}
}
@article{BungValero2018,
  author    = {Bung, Daniel Bernhard and Valero, Daniel},
  title     = {Re-aeration on stepped spillways with special consideration of entrained and entrapped air},
  series = {Geosciences},
  volume    = {8},
  journal   = {Geosciences},
  number    = {9},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2076-3263},
  pages     = {Article number 333},
  year      = {2018},
  abstract  = {As with most high-velocity free-surface flows, stepped spillway flows become self-aerated when the drop height exceeds a critical value. Due to the step-induced macro-roughness, the flow field becomes more turbulent than on a similar smooth-invert chute. For this reason, cascades are oftentimes used as re-aeration structures in wastewater treatment. However, for stepped spillways as flood release structures downstream of deoxygenated reservoirs, gas transfer is also of crucial significance to meet ecological requirements. Prediction of mass transfer velocities becomes challenging, as the flow regime differs from typical previously studied flow conditions. In this paper, detailed air-water flow measurements are conducted on stepped spillway models with different geometry, with the aim to estimate the specific air-water interface. Re-aeration performances are determined by applying the absorption method. In contrast to earlier studies, the aerated water body is considered a continuous mixture up to a level where 75\% air concentration is reached. Above this level, a homogenous surface wave field is considered, which is found to significantly affect the total air-water interface available for mass transfer. Geometrical characteristics of these surface waves are obtained from high-speed camera investigations. The results show that both the mean air concentration and the mean flow velocity have influence on the mass transfer. Finally, an empirical relationship for the mass transfer on stepped spillway models is proposed.},
  language  = {en}
}
@article{BungValero2016,
  author    = {Bung, Daniel Bernhard and Valero, Daniel},
  title     = {Optical flow estimation in aerated flows},
  series = {Journal of Hydraulic Research},
  volume    = {54},
  journal   = {Journal of Hydraulic Research},
  number    = {5},
  publisher = {Taylor \& Francis},
  address   = {London},
  doi       = {10.1080/00221686.2016.1173600},
  pages     = {575 -- 580},
  year      = {2016},
  abstract  = {Optical flow estimation is known from Computer Vision where it is used to determine obstacle movements through a sequence of images following an assumption of brightness conservation. This paper presents the first study on application of the optical flow method to aerated stepped spillway flows. For this purpose, the flow is captured with a high-speed camera and illuminated with a synchronized LED light source. The flow velocities, obtained using a basic Horn-Schunck method for estimation of the optical flow coupled with an image pyramid multi-resolution approach for image filtering, compare well with data from intrusive conductivity probe measurements. Application of the Horn-Schunck method yields densely populated flow field data sets with velocity information for every pixel. It is found that the image pyramid approach has the most significant effect on the accuracy compared to other image processing techniques. However, the final results show some dependency on the pixel intensity distribution, with better accuracy found for grey values between 100 and 150.},
  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{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{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{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{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{BungSchlenkhoff2010,
  author    = {Bung, Daniel Bernhard and Schlenkhoff, Andreas},
  title     = {Selbstbel{\"u}ftete Gerinnestr{\"o}mungen auf Treppenschussrinnen},
  series = {Talsperren im Wandel : 15. Deutsches Talsperrensymposium ; Beitr{\"a}ge zur Tagung am 14. bis 16. April 2010 im Eurogress Aachen},
  booktitle = {Talsperren im Wandel : 15. Deutsches Talsperrensymposium ; Beitr{\"a}ge zur Tagung am 14. bis 16. April 2010 im Eurogress Aachen},
  organization    = {Deutsches TalsperrenKomitee},
  isbn      = {978-3-8322-9043-6},
  pages     = {39 -- 47},
  year      = {2010},
  language  = {de}
}
@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{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{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{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}
}