Application and comparison of different cavitation models in numerical computation of cavitation flow

Steady cavity flow of 2-D hydrofoil is simulated by CFD software. The impacts of different cavitation model to the numerical simulation results are analyzed. The pressure distributing curve and volume fraction distributing map are obtained through the detailed analysis to the cavity flow under different cavity number. The analysis results show that those cavitation models simulate the origination and forming process of cavity preferably, which match experiment values closely. However, there are some differences among the results of those different cavitation models in the cavity closing area, because of the unsteady characteristic of the turbulence pulsating state. Actually, they are also consisted to the distribution of the experiment values.