Ship propulsion prediction with a coupled RANSE-BEM approach

This paper is devoted to the validation of a RANSE-BEM coupling procedure for propeller-hull interaction simulation with the ISIS-CFD RANSE solver developed by the DSPM team of the LHEEA laboratory in Nantes coupled with the PRO-INS BEM code developed by INSEAN. The hybrid simulation approach is first validated with an open water test case. Then, propeller-hull interaction issue is investigated with several test cases to assess the accuracy of the RANSE-BEM coupling approach. A special way to evaluate the effective wake at the propeller plane is proposed. With this approach, good predictions are obtained with the RANSE-BEM coupling computations