The E ect of Wake Flow and Skew Angle on the Ship Propeller Performance

This paper provides an investigation into the in uence of wake and skew on a ship propeller performance, based on the potential Boundary Element Method (BEM). Two types of in ow wake from a ship (i.e. Seiun-Maru and MS689) have been investigated for two propeller types; a Conventional Propeller (CP) and a Highly Skewed Propeller (HSP). The computed results include pressure distribution, open water characteristics and thrust uctuation for one blade and for all blades of the propeller. Calculations of the unsteady pressure distributions, thrust and torque are in good agreement with experimental data. In addition, the e ect of propeller skew angle on the performance of thrust and torque, is investigated.