Slip flow on a body of revolution

摘要

This work investigates the boundary layer development and resulting net frictional drag along a general blunt-nosed body of revolution in uniform slip ?ow. The curvilinear boundary layer equations are subjected to a Navier slip condition near the surface. For motion near the nose, a similarity-type solution is obtained as a double series, comprising a small velocity slip parameter, from which the non-dimensional drag coef?cient is obtained. In addition, the displacement effect of the boundary layer on the outer inviscid ?ow is determined and interpreted by means of a dimensionless parameter. The general analysis is then applied to the special case of the Rankine half-body. Considering laminar?ow along the nose and downstream regions, results are presented for prescribed slip parameters and Reynolds numbers with particular emphasis on the in?uence of slip on the?ow.