STUDIES ON THREE-DIMENSIONAL BOUNDARY LAYERS ON BODIES OF REVOLUTION II. THREE-DIMENSIONAL LAMINAR BOUNDARY LAYERS AND THE OK OF ACCESSIBILITY BY

An investigation is carried out Into the structure of the laminar boundary layer originating from the forward stagnation point of a prolate spheroid at incidence in a uniform stream, assuming that the external velocity distribution is given by attached potential theory. The principal new results of the study arez (1) A new transformation of the body coordinates is devised which facilitates the computation of the solution near the nose 4J44F- Two variations of the standard box method of solving the equations are devised to enable solutions to be computed in regions of cross-flow reversal) They are referred to as the zig-zag box and the characteristic box.- 44444 Whereas in two dimensional flows the effect of the boundary layer approaching separation on the external flow may be represented by a blowing velocity, in the present study we find that this is only true near the windward line of symmetry, Near the leeward line of symmetry the blowing velocity must be replaced by a suction velocity even thoug