UNSTEADY MIXED CONVECTION BOUNDARY-LAYER FLOW OF A MICROPOLAR FLUID NEAR THE LOWER STAGNATION POINT ON A CYLINDER

Eringen's theory of micropolar fluids [1] is used to formulate a set of boundary layer equations for the unsteady mixed convective flow of an incompressible micropolar fluid in the vicinity of the front stagnation point on a circular cylinder. The external stream is assumed to be set in an impulsive motion from rest towards the cylinder and the temperature of the cylinder is suddenly increased from that of the surrounding fluid. Series solutions for small time are presented for the velocity, microrotation, and temperature fields.