A Simple Integral Method for Thick Boundary Layer for Predicting Axial Velocity Distribution around Ship Stern

Abstract

An integral method of three-dimensional boundary layer with small cross flow assumption is used for predicting axial velocity distribution around ship stern of a fine practical ship form (Series 60, C_B=0.6 model ship). Potential streamlines on the hull surface and in the flow field are used for coordinate system suitable for small cross flow method. The flow fields can be obtained to the propeller plane without any divergence of the solution. The results are compared with available experimental data. The comparison show that the present method is promising because of the simple computational method although it has some discrepancy.