Unsteady nonsimilar laminar boundary-layer flows with heat and mass transfer

The unsteady laminar incompressible nonsimilar boundary layer flow over two-dimensional and axisymmetric bodies has been studied where the unsteadiness and/or nonsimilarity are due to the free stream velocity, mass transfer, transverse curvature, and wall temperature. The partial differential equations governing the flow, whih involve three independent variables, have been solved numerically using an implicit finite-difference scheme. The results indicate that the skin friction and heat transfer are strongly dependent on the unsteady free stream velocity. Also, the unsteadiness and injection cause the location of zero skin friction to move upstream. The heat transfer is strongly affected by the Prandtl number and the variation of wall temperature with time and dissipation parameter, and the effect is more pronounced for large times. Also, the heat transfer responds comparatively less to the fluctuations of the free stream than the skin friction.