Abstract
In the present study, the hydrodynamic performance of the Podded Drive System (PODS) using Reynolds-Averaged Navier Stokes (RANS) method and Boundary Element Method (BEM) is reported. The BEM is based on potential inviscid flow problem while RANS are for the viscous flow problem. Hydrodynamic characteristics of the single propeller are determined by both methods and the results are compared and discussed. Then, it is extended to the PODS at the zero yaw angle. Validation is made through the comparison of both numerical results against experimental test data for the PODS propulsive characteristics coefficients. The results show that there is a good agreement between the experimental data and numerical results, particularly in the viscous calculations.
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