Abstract
In this study, CFD-FEM bi-directional fluid structure interaction (FSI) methodology using STAR-CCM+ is adapted for the hydro-elastic interaction simulation of the propeller at full-scale. To validate the FSI simulation reliabilities, the open-water curve of the rigid and NAB propellers VP1304 at model scale are computed. Then, the propeller KP505 is employed for the open-water test to study scale effect and hydro-elastic performance. The change of thrust coefficient, torque coefficient, efficiency, stress distribution, deformation are presented. From the results, the hydrodynamic difference due to scale effect and hydro-elastic performance are observed. Analysis of structural response of NAB propeller shows that scale effect plays a role.
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