الفهرس 
chapter 1Only 14 pages are availabe for public view
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Abstract
Market demands for increase in the size and speed requirements for certain ship types, particularly container and passenger ships. This translates into higher loads on propellers, which in turn leads to greater propeller excitation and increases the risk of vibration and vibration-induced failures. The better strategy to minimize the exciting forces is to deal with the propeller itself as a source of excitation. Cavitation as unavoidable phenomena, which has a non-negligible influence on the pressure fluctuations which affects the vibrations on the whole ship structure. This thesis provides complete guidelines for numerical flow simulation around marine propeller. These guidelines consist of geometry creation, boundary conditions setup, and solution parameters for the numerical solution. These guidelines are addressed to handle propeller simulation problems in order to achieve a quick and accurate solution with a small computational cost. Propeller skew is the most effective design parameter which has significant influence on reducing propeller induced vibration without sacrificing the efficiency. Applications of propeller skew for a certain propeller almost does not have specified criteria. This thesis presents a proposed concept design criteria for propeller skew. The overall results suggest that the proposed approach is practicable for propeller designs for minimum induced vibrations.