Computation of cavitating flow through marine propulsors

Computed single phase and cavitating flow fields are presented for two open propellers and a ducted waterjet. Modeling is performed using a Reynolds-Averaged Navier-Stokes solver with homogenous-multiphase modeling and turbulent simulation capabilities. The open propeller computations include both steady, uniform inflow computations as well as unsteady, distorted inflow, conditions. The ducted waterjet computations assume steady, periodic flow conditions with body forces to represent the effect of the downstream stator row. Computed performance parameters and cavity shapes are compared with experimental observations.

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