Wall Model and Mesh Influence Study for Partial Cavities

Eric Goncalvès da Silva (1) , Jean Decaix (1)

1 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]

This numerical work investigates the mesh influence in the near-wall area when a partial cavity develops and interacts with the turbulent boundary layer. Different meshes varying by the first cell size are compared, and unsteady simulations are performed with a two-phase one-fluid RANS solver. Numerical results are given for two Venturi geometries (quasi stable and unstable behaviour) and comparisons are made with experimental data.

Mots clés: Cavitation

Domaines: Mécanique des fluides [physics.class-ph]; Mécanique des fluides [physics.class-ph]

Eric Goncalvès da Silva, Jean Decaix. Wall Model and Mesh Influence Study for Partial Cavities. European Journal of Mechanics - B/Fluids, 2012, 31, pp.12-29. ⟨10.1016/j.euromechflu.2011.08.002⟩. ⟨hal-00620742⟩