Cavitating flow is studied numerically with a new approach using two-phase flow equations. The development is based on a two-fluid model which is modified with surface tension effect. This modified model insures the hyperbolicity of equation and we can solve the two-phase equations using upwind method. For cavitating flow analysis, this model is extended to two-dimension. Through two-phase shock tube problem, we discussed characteristic speed of two-phase flow and effect of inter-action between gas and liquid phases. And for two-dimensional problem, vertical plane, bended duct and hemisphere headform cases are solved for numerical simulation of cavitating flow. Advantages and capabilities of this method are discussed.
