@article{LeandroBungCarvalho2014, author = {Leandro, J. and Bung, Daniel B. and Carvalho, R.}, title = {Measuring void fraction and velocity fields of a stepped spillway for skimming flow using non-intrusive methods}, series = {Experiments in fluids}, journal = {Experiments in fluids}, number = {55}, publisher = {Springer Nature}, address = {Heidelberg}, issn = {0723-4864 (Print) ; 1432-1114 (Online)}, doi = {10.1007/s00348-014-1732-6}, pages = {Art. 1732}, year = {2014}, language = {en} } @article{MalechaKlubertHeinenFuchs2014, author = {Malecha, Hartmut and Klubert, J. and Heinen-Fuchs, Sabine}, title = {Laserscanning passe? 3-D-Oberfl{\"a}chenmodelle aus Bilddaten und deren messtechnischer Nutzen}, series = {Wasserwirtschaft}, volume = {Jg. 104}, journal = {Wasserwirtschaft}, number = {Nr. 9}, publisher = {Springer Vieweg}, address = {Wiesbaden}, issn = {0043-0978}, pages = {32 -- 35}, year = {2014}, language = {de} } @article{MeinzingerBagayokoKoch2003, author = {Meinzinger, Michael and Bagayoko, Lamine and Koch, Eckart}, title = {Die Lagerung der Lehrter Bahnhofsbr{\"u}cken}, series = {Bauingenieur}, volume = {Bd. 78}, journal = {Bauingenieur}, number = {H. 2}, issn = {1436-4867 (E-Journal); 0005-6650 (Print)}, pages = {73 -- 85}, year = {2003}, language = {de} } @article{DemnyHebel2014, author = {Demny, Andreas and Hebel, Christoph}, title = {Rechnergest{\"u}tzte Ermittlung der Verbindungsfunktionsstufen und der verbindungsbezogenen Angebotsqualit{\"a}t nach den Richtlinien f{\"u}r integrierte Netzgestaltung nach RIN 2008}, series = {Straßenverkehrstechnik : Organ der Forschungsgesellschaft f{\"u}r Straßen- und Verkehrswesen, der Bundesvereinigung der Straßenbau- und Verkehrsingenieure und der {\"O}sterreichischen Forschungsgesellschaft Straße und Verkehr ; Zeitschrift f{\"u}r Verkehrsplanung, Verkehrsmanagement, Verkehrssicherheit, Verkehrstechnik}, volume = {Jg. 58}, journal = {Straßenverkehrstechnik : Organ der Forschungsgesellschaft f{\"u}r Straßen- und Verkehrswesen, der Bundesvereinigung der Straßenbau- und Verkehrsingenieure und der {\"O}sterreichischen Forschungsgesellschaft Straße und Verkehr ; Zeitschrift f{\"u}r Verkehrsplanung, Verkehrsmanagement, Verkehrssicherheit, Verkehrstechnik}, number = {H. 12}, publisher = {Kirschbaum Verlag}, address = {Bonn}, issn = {0039-2219}, pages = {811 -- 820}, year = {2014}, language = {de} } @article{KolymbasKirsch2009, author = {Kolymbas, Dimitrios and Kirsch, Ansgar}, title = {Zum Erddruck auf Lawinenschutzgalerien}, series = {Bautechnik : Zeitschrift f{\"u}r den gesamten Ingenieurbau}, volume = {Vol. 86}, journal = {Bautechnik : Zeitschrift f{\"u}r den gesamten Ingenieurbau}, number = {Iss. 12}, issn = {1437-0999 (E-Journal); 0005-6820 (Print); 0932-8351 (Print)}, doi = {10.1002/bate.200910075}, pages = {774 -- 779}, year = {2009}, language = {de} } @article{KirschPiazzi2009, author = {Kirsch, Ansgar and Piazzi, Lukas}, title = {Numerical investigation of the effectiveness of a bored pile wall for the minimisation of settlement resulting from tunnel driving}, series = {Geomechanics and tunnelling}, volume = {Vol. 2}, journal = {Geomechanics and tunnelling}, number = {Iss. 6}, issn = {1865-7362}, doi = {10.1002/geot.200900063}, pages = {753 -- 765}, year = {2009}, language = {de} } @article{Kirsch2008, author = {Kirsch, Ansgar}, title = {Experimentelle Untersuchung des Ortsbrustversagens seichter Tunnel}, series = {{\"O}sterreichische Bauwirtschaft}, journal = {{\"O}sterreichische Bauwirtschaft}, number = {Sondernr.}, pages = {6 -- 9}, year = {2008}, language = {de} } @article{KolymbasFellinKirsch2006, author = {Kolymbas, Dimitrios and Fellin, W. and Kirsch, Ansgar}, title = {Squeezing due to stress relaxation in foliated rock}, series = {International journal for numerical and analytical methods in geomechanics}, volume = {Vol. 30}, journal = {International journal for numerical and analytical methods in geomechanics}, number = {Iss. 13}, issn = {1096-9853 (E-Journal); 0363-9061 (Print)}, doi = {10.1002/nag.530}, pages = {1357 -- 1367}, year = {2006}, language = {en} } @article{GieseKirschZiegler2006, author = {Giese, S. and Kirsch, Ansgar and Ziegler, M.}, title = {Numerische Untersuchung von Schervorg{\"a}ngen mit der Diskrete-Partikel-Methode}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, volume = {Bd. 81}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik}, number = {H. 5}, issn = {0005-6650}, pages = {232 -- 239}, year = {2006}, language = {de} } @article{KirschKolymbas2005, author = {Kirsch, Ansgar and Kolymbas, Dimitrios}, title = {Theoretische Untersuchung zur Ortsbruststabilit{\"a}t}, series = {Bautechnik : Zeitschrift f{\"u}r den gesamten Ingenieurbau}, volume = {Bd. 82}, journal = {Bautechnik : Zeitschrift f{\"u}r den gesamten Ingenieurbau}, number = {H. 7}, issn = {1437-0999 (E-Journal); 0005-6820 (Print); 0932-8351 (Print)}, doi = {10.1002/bate.200590151}, pages = {449 -- 456}, year = {2005}, language = {de} } @article{OertelBung2015, author = {Oertel, Mario and Bung, Daniel B.}, title = {Numerische Str{\"o}mungssimulationen von Fließgew{\"a}ssern : Praxisanwendungen und zuk{\"u}nftige Entwicklungen}, series = {Korrespondenz Wasserwirtschaft : KW}, volume = {8}, journal = {Korrespondenz Wasserwirtschaft : KW}, number = {H. 3}, publisher = {Gesellschaft zur F{\"o}rderung der Abwassertechnik}, address = {Hennef}, issn = {1616-430X}, pages = {177 -- 182}, year = {2015}, language = {de} } @article{DoeringRegerKuhnhenneetal.2015, author = {D{\"o}ring, Bernd and Reger, Vitali and Kuhnhenne, Markus and Feldmann, Markus and Kesti, Jyrki and Lawson, Mark and Botti, Andrea}, title = {Steel solutions for enabling zero-energy buildings}, series = {Steel Construction - Design and Research}, volume = {8}, journal = {Steel Construction - Design and Research}, number = {3}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1867-0539}, doi = {10.1002/stco.201510029}, pages = {194 -- 200}, year = {2015}, language = {en} } @article{EgnerHeydeLaumannetal.2015, author = {Egner, Ralf and Heyde, Stefan and Laumann, J{\"o}rg and Prokop, Ines}, title = {Vorschl{\"a}ge f{\"u}r eine anwenderfreundliche und praxistaugliche Novellierung der allgemeinen Bemessungsregeln und Regeln f{\"u}r den Hochbau (EN 1993 Teil 1-1)}, series = {Stahlbau}, volume = {84}, journal = {Stahlbau}, number = {10}, publisher = {Ernst \& Sohn}, address = {Berlin}, issn = {1437-1049}, doi = {10.1002/stab.201510321}, pages = {811 -- 822}, year = {2015}, language = {de} } @article{LaumannMainz2012, author = {Laumann, J{\"o}rg and Mainz, Stefan}, title = {Direkte Ermittlung der erforderlichen Einspanntiefe von I‑f{\"o}rmigen Stahlquerschnitten in Betonkonstruktionen}, volume = {81}, number = {11}, publisher = {Wiley}, address = {Weinheim}, issn = {1437-1049}, doi = {10.1002/stab.201201620}, pages = {850 -- 860}, year = {2012}, abstract = {F{\"u}r die Ermittlung der erforderlichen Einspanntiefe von eingespannten Stahlquerschnitten in Betonkonstruktionen existieren verschiedene Bemessungsmodelle. Diese basieren vorwiegend auf Grundlage nationaler Normen wie z. B. DIN 18800 [1] und DIN 1045 [2], die durch die europ{\"a}ische Normung ersetzt wurden. Aus diesem Grund wird in diesem Aufsatz ein Berechnungsmodell f{\"u}r die erforderliche Einspanntiefe von eingespannten Stahlquerschnitten in Betonkonstruktionen auf Grundlage des Eurocodes vorgestellt. Das Grundger{\"u}st f{\"u}r dieses Berechnungsmodell bildet das Verfahren nach Kindmann und Laumann, welches in [3] behandelt wurde. Gleichzeitig werden neue Formeln zur direkten Ermittlung der Mindesteinspanntiefe vorgestellt. Behandelt werden gewalzte I-Profile f{\"u}r einachsige Biegung um die starke Achse (y-y) mit Drucknormalkraft.}, language = {de} } @article{BayonValeroGarciaBartualetal.2016, author = {Bayon, Arnau and Valero, Daniel and Garcia-Bartual, Rafael and Vall{\´e}s-Mor{\´a}n, Francisco Jos{\´e} and L{\´o}pez-Jim{\´e}nez, P. Amparo}, title = {Performance assessment of OpenFOAM and FLOW-3D in the numerical modeling of a low Reynolds number hydraulic jump}, series = {Environmental Modelling \& Software}, volume = {80}, journal = {Environmental Modelling \& Software}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1364-8152}, doi = {10.1016/j.envsoft.2016.02.018}, pages = {322 -- 335}, year = {2016}, abstract = {A comparative performance analysis of the CFD platforms OpenFOAM and FLOW-3D is presented, focusing on a 3D swirling turbulent flow: a steady hydraulic jump at low Reynolds number. Turbulence is treated using RANS approach RNG k-ε. A Volume Of Fluid (VOF) method is used to track the air-water interface, consequently aeration is modeled using an Eulerian-Eulerian approach. Structured meshes of cubic elements are used to discretize the channel geometry. The numerical model accuracy is assessed comparing representative hydraulic jump variables (sequent depth ratio, roller length, mean velocity profiles, velocity decay or free surface profile) to experimental data. The model results are also compared to previous studies to broaden the result validation. Both codes reproduced the phenomenon under study concurring with experimental data, although special care must be taken when swirling flows occur. Both models can be used to reproduce the hydraulic performance of energy dissipation structures at low Reynolds numbers.}, language = {en} } @article{LopesLeandroCarvalhoetal.2017, author = {Lopes, Pedro and Leandro, Jorge and Carvalho, Rita F. and Bung, Daniel B.}, title = {Alternating skimming flow over a stepped spillway}, series = {Environmental Fluid Mechanics}, volume = {17}, journal = {Environmental Fluid Mechanics}, number = {2}, publisher = {Springer}, address = {Berlin}, issn = {1573-1510}, doi = {10.1007/s10652-016-9484-x}, pages = {303 -- 322}, year = {2017}, language = {en} } @article{ValeroBung2016, author = {Valero, Daniel and Bung, Daniel B.}, title = {Sensitivity of turbulent Schmidt number and turbulence model to simulations of jets in crossflow}, series = {Environmental Modelling and Software}, volume = {82}, journal = {Environmental Modelling and Software}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1364-8152 (electronic)}, doi = {10.1016/j.envsoft.2016.04.030}, pages = {218 -- 228}, year = {2016}, abstract = {Environmental discharges have been traditionally designed by means of cost-intensive and time-consuming experimental studies. Some extensively validated models based on an integral approach have been often employed for water quality problems, as recommended by USEPA (i.e.: CORMIX). In this study, FLOW-3D is employed for a full 3D RANS modelling of two turbulent jet-to-crossflow cases, including free surface jet impingement. Results are compared to both physical modelling and CORMIX to better assess model performance. Turbulence measurements have been collected for a better understanding of turbulent diffusion's parameter sensitivity. Although both studied models are generally able to reproduce jet trajectory, jet separation downstream of the impingement has been reproduced only by RANS modelling. Additionally, concentrations are better reproduced by FLOW-3D when the proper turbulent Schmidt number is used. This study provides a recommendation on the selection of the turbulence model and the turbulent Schmidt number for future outfall structures design studies.}, language = {en} } @article{ValeroBung2016, author = {Valero, Daniel and Bung, Daniel B.}, title = {Development of the interfacial air layer in the non-aerated region of high-velocity spillway flows: Instabilities growth, entrapped air and influence on the self-aeration onset}, series = {International Journal of Multiphase Flow}, volume = {84}, journal = {International Journal of Multiphase Flow}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0301-9322}, doi = {10.1016/j.ijmultiphaseflow.2016.04.012}, pages = {66 -- 74}, year = {2016}, abstract = {Self-aeration is traditionally explained by the water turbulent boundary layer outer edge intersection with the free surface. This paper presents a discussion on the commonly accepted hypothesis behind the computation of the critical point of self-aeration in spillway flows and a new formulation is proposed based on the existence of a developing air flow over the free surface. Upstream of the inception point of self-aeration, some surface roughening has been often reported in previous studies which consequently implies some entrapped air transport and air-water flows coupling. Such air flow is proven in this study by presenting measured air velocities and computing the air boundary layer thickness for a 1V:2H smooth chute flow. Additionally, the growth rate of free surface waves has been analysed by means of Ultrasonic Sensors measurements, obtaining also the entrapped air concentration. High-speed camera imaging has been used for qualitative study of the flow perturbations.}, language = {en} } @article{RegerDoeringKuhnhenne2016, author = {Reger, V. and D{\"o}ring, Bernd and Kuhnhenne, M.}, title = {Passive und aktive Maßnahmen zur Fl{\"a}chenk{\"u}hlung im Stahl(leicht)bau}, series = {Bauingenieur}, volume = {91}, journal = {Bauingenieur}, number = {Jul/Aug}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {0005-6650}, doi = {10.37544/0005-6650-2016-07-08-63}, pages = {309 -- 316}, year = {2016}, abstract = {Mit steigenden D{\"a}mmstandards und h{\"o}heren Komfortanforderungen der Nutzer ger{\"a}t die Problematik der sommerlichen {\"U}berhitzung zunehmend in den Fokus. Um die {\"U}berhitzung m{\"o}glichst gering zu halten, sind Maßnahmen und L{\"o}sungen zu entwickeln, die den potenziellen K{\"u}hlbedarf eines Geb{\"a}udes vermeiden sowie reduzieren. Im Rahmen des europ{\"a}ischen Forschungsprojektes BATIMASS wurden Techniken untersucht, die die sommerliche Raumtemperatur ohne zus{\"a}tzliche K{\"u}hlung (passiv) oder aber mit energieeffizienter wasserbasierter Fl{\"a}chenk{\"u}hlung (aktiv) reduzieren und die besonders f{\"u}r Geb{\"a}ude in Stahl(leicht)bauweise geeignet sind. Daf{\"u}r wurde die Methodik der thermisch {\"a}quivalenten Decke weiterentwickelt, um das thermische Verhalten von Profilblechdecken in Geb{\"a}uden f{\"u}r beide L{\"o}sungsans{\"a}tze analysieren zu k{\"o}nnen. Dar{\"u}ber hinaus wurde der Einsatz von Phasenwechselmaterial (PCM) zur Steigerung der Speicherf{\"a}higkeit von leichten Decken mit besonders geringer thermischer Masse in Simulationen sowie im Labor untersucht und bewertet.}, language = {de} } @article{PyschnyDoeringFeldmann2014, author = {Pyschny, D. and D{\"o}ring, Bernd and Feldmann, M.}, title = {Ermittlung der thermischen Leistungsf{\"a}higkeit des neuartigen multifunktionalen Verbunddeckensystems InaDeck}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen}, volume = {89}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen}, number = {3}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {0005-6650}, pages = {116 -- 124}, year = {2014}, language = {de} }