An asymptotic method for the computation of laminar shear stress and heat flux in forced and free convection

A technique was developed and applied to the solution of laminar incompressible nonsimilar boundary-layer problem with forced and free convection. The basic feature of this technique involves the finding of a strained value of the parameter which characterizes the nonsimilarity introduced into the problem. The corresponding zero order solution (or similarity solution) provides almost exact shear stress and heat transfer results. The method can be applied locally (independent of information from other stream-wise locations). Working charts and tables are provided for the following cases: (1) laminar incompressible forced convection fluid flow with nonsimilarity introduced by arbitrary free-stream velocity distributions; (2) laminar incompressible forced convection with arbitrary suction or injection of fluid at the wall; and (3) free convection along a vertical plate with either prescribed variable wall temperature or wall heat flux.