Simulation of partial cavitation over the symmetrical circular and elliptical crosss sections using the boundary element method

In this research a software is developed to simulate the partial cavitation over the axisymmetric and quasi three-dimensional bodies using a Boundary Element Method (BEM).According to desirable convergenceof axisymmetric simulation in BEM, first the axisymmetric cavitation flow is simulated and this result is used to simulate quasi three-dimensional bodies. In order to simulate the cavitation flow, the source and dipole rings are distributed on body and cavity boundaries, Using Green's theorem integral expression and to simulate closure of cavity, two models is used: simple closure model and re-entrant jet model. The constant length of the cavity is initial prediction and the cavitation number and shape of cavity are the main results of this simulation. The validation of solution, the Navier-Stokes equations based on mixture model is compared to BEM results in convergense and accuracy. Compression between this results and other experimental and numerical simulation show the ability of BEM in simulation of cavitation flows with desirable convergence and relatively good accuracy.