Reference : Numerical modelling of meandering jets in shallow rectangular reservoir using two dif...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/213607
Numerical modelling of meandering jets in shallow rectangular reservoir using two different turbulent closures
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Peltier, Y. [University of Liege, ArGEnCo Department, Research Group of Hydraulics in Environmental and Civil Engineering, Liege, Belgium, Université Paris-Est, Laboratory for Hydraulics Saint-Venant (ENPC, EDF R&D, CEREMA), Chatou, France]
Erpicum, Sébastien mailto [Université de Liège > > Scientifiques attachés au Doyen (Sc.appliquées) >]
Archambeau, Pierre mailto [Université de Liège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Pirotton, Michel mailto [Université de Liège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Dewals, Benjamin mailto [Université de Liège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering >]
2016
Sustainable Hydraulics in the Era of Global Change
Erpicum, Sébastien mailto
Dewals, Benjamin mailto
Archambeau, Pierre mailto
Pirotton, Michel mailto
CRC Press/Balkema
202-209
Yes
International
4th European Congress of the International Association of Hydroenvironment engineering and Research, IAHR 2016
27-29 July 2016
[en] Engineering research ; Equations of motion ; Fighter aircraft ; Friction ; Principal component analysis ; Algebraic modeling ; Objective parameters ; Proper orthogonal decompositions ; Shallow water equations ; Sub-grid scale models ; Transient behavior ; Tuning parameter ; Turbulent closures ; Reservoirs (water)
[en] In this article, the shallow water equations are used to model meandering flows in shallow rectangular reservoir.Two distinct meandering flows in termof friction regimewere modelled (frictional and nonfrictional) and two turbulent closures were tested with various values for their tuning parameters. One turbulent closure accounts for both the 2D horizontal (k-ε) and 3D vertical (algebraic model) turbulent mixing, while the second turbulent closure accounts for the unresolved scales of the shallow water equations through a subgridscale model (Smagorinsky). The purpose here is to give advices on which turbulent closure is the most likely appropriate for modelling meandering flows. A Proper Orthogonal Decomposition (POD) is performed on the simulation results for extracting objective parameters accounting for transient behaviors and to be compared with experiments. Comparisons between models and with experiments indicate a great dependence of the simulation results to the modelling of the small scales of the turbulence. © 2016 Taylor & Francis Group, London.
et al;International Association for Hydro-Environment Engineering and Research;International Association of Hydrological Sciences (IAHS);LAVISION;MET-FLOW;Societe Hydrotechnique de France (SHF)
http://hdl.handle.net/2268/213607
177959
9781138029774

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