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《Journal of Vibration and Shock》 2015-04
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Multiphase models for flow field numerical simulation of a vehicle rising from water

WEI Hai-peng;FU Song;Aerospace School,Tsinghua University;  
Here,the prediction capabilities of Mixture model and VOF one for the simulation of unsteady flows around a moving cylindrical vehicle were evaluated. In the simulation,the k-ε turbulence model was used along with the transport equation-based cavitation model to simulate the vehicle rising from water process,the dynamic mesh technique was applied.Results were obtained under two states of non-cavitation and cavitation,respectively and the transient flow structures and time evolution of pressure distribution were revealed. According to the numerical results,the difference between the capability of VOF model and that of Mixture model was analyzed. Their applicable ranges are very important for theoretical study and engineering application.
【CateGory Index】: O359
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