Numerical study of cavitating flows with thermodynamic effect

Eric Goncalvès da Silva (1) , Regiane . Fortes Patella (1)

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

Thermodynamic effects play an important role in the cavitation dynamics of cryogenic fluids. Such flows are characterized by strong variations in fluid properties with the temperature. A compressible, multiphase, one-fluid formulation that accounts for the energy balance and variable thermodynamics properties of the fluid is described. A preconditioning method for low Mach number areas is presented. Cavitation phenomenon is modelled by two different liquid-vapour mixture equations of state (EOS). Mathematical and thermodynamic properties are studied. Numerical results are given for a Venturi geometry with freon R-114 fluid and comparisons are made with experimental data.

Mots clés: Cavitation; Homogeneous Model; Thermodynamic Effect; Equation of State; RANS Simulations

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

Eric Goncalvès da Silva, Regiane . Fortes Patella. Numerical study of cavitating flows with thermodynamic effect. Computers and Fluids, 2010, 39 (1), pp.99-113. ⟨10.1016/j.compfluid.2009.07.009⟩. ⟨hal-00530261⟩