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Article (Scientific journals)
Three‐phase Bi‐layer Model for Simulating Mixed Flows
Kerger, François  ; Archambeau, Pierre  ; Dewals, Benjamin  et al.
2012 • In Journal of Hydraulic Research, 50 (3), p. 312-319
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Keywords :
Air entrainment; Air entrapment; Multiphase flow; air–water flow; drift-flux model; écoulement aéré; entrainement d'air; écoulement multiphasique
Abstract :
[en] Mixed flows characterized by a simultaneous occurrence of free surface and pressurized flows are often encountered in hydraulic engineering. Numerous researches have been dedicated to unify the mathematical description of both flows. Herein, shock-capturing models succeed in giving a unique set of equations. However, no method accounts for both air-entrapment and air-entrainment. This study proposes an original model to simulate air–water interactions in mixed flows. The new approach relies on the area-integration of a three-phase model over two layers. The applicability of this free surface model is extended to pressurized flows by a modified pressure term accounting for the dispersed air. The derived modelling system WOLF IMPack is then validated. The code successfully simulates open channel flows, mixed flows and water hammer in a unified framework, including air–water interactions, in structures like the drainage network.
Research center :
Aquapôle - ULiège
Disciplines :
Civil engineering
Author, co-author :
Kerger, François ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Archambeau, Pierre  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Dewals, Benjamin  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Erpicum, Sébastien  ;  Université de Liège - ULiège > Services généraux (Faculté des sciences appliquées) > Scientifiques attachés au Doyen (Sc.appliquées)
Pirotton, Michel ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Language :
English
Title :
Three‐phase Bi‐layer Model for Simulating Mixed Flows
Publication date :
June 2012
Journal title :
Journal of Hydraulic Research
Publisher :
International Association for Hydraulic Research, Delft, Netherlands
Volume :
50
Issue :
3
Pages :
312-319
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique

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