境界層理論による船尾後流の計算と排除影響について

抄録

This paper presents two methods for predicting the characteristics of the viscous wake field behind a ship. One is an extension of the usual calculation method for ship boundary layers to the ship wake problem, in which the formula for the velocity profiles and the entrainment equation are modified considering the wake flow field. The other method which may be regarded as the first approximation to the three-dimensional wake layer equations, consists of a new formula for the cross flow angle in the wake and Squire and Young's empirical formula in tthe main stream direction. The results of the calculations according to these methods show reasonable agreements with the experimental result. Furthermore, the discussions concerning the pressure distribution on the ship hull and along the center plane of the wake are made in view of the displacement effects of ship boundary layer and wake.