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Institute
- Fachbereich Bauingenieurwesen (705) (remove)
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.
Abfallwirtschaft
(2005)
Abfallwirtschaft
(2004)
Abfallwirtschaft
(2002)
Abfallwirtschaft
(2000)
Abfallwirtschaft
(1998)
Wasserwirtschaft
(1996)
Sanierung von Altlasten
(1989)
Abfallwirtschaft
(1996)