CFD Simulation of Thermodynamic Effect Using a Homogeneous Cavitation Model Based on Method of Moments
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Recently, we have constructed a new homogeneous cavitation model, which includes various elementary processes in cavitation bubbles on the basis of a method of moments. We already confirmed that CFD simulation with this model can predict lift coefficient of a hydrofoil in cavitating water flow better than some conventional methods while the temperature decrease by thermodynamic effect in liquid nitrogen as a cryogenic fluid is underestimated. In this paper, we re-applied the cavitation model to a CFD simulation around the same target, cavitating liquid nitrogen flow around NACA16-012 hydrofoil. As a result, the temperature decrease by the thermodynamic effect is fairly well reproduced compared with the previous result when we arranged the model parameter of the growth/shrinkage while a limitation of homogeneous model and that of turbulence model are still indicated.