Constraints on Equation of State for Cavitating Flows with Thermodynamic Effects
Résumé
Thermodynamic effects play an important role in the cavitation dynamics of cryogenics fluids. Such flows are characterized by strong variations in fluid properties with the temperature. A compressible, multiphase, one-fluid solver was developed to study and to predict thermodynamic effects in cavitating flows. To close the system, a cavitation model is proposed to capture metastable behaviours of fluids and non isothermal thermodynamic path. The thermodynamical consistency based on entropy conditions and the evolution of the mixture speed of sound are investigated. These constraints are applied to other models. The considered working fluid is the refrigerant R-114.
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