Non-steady-state flow at a porous plate with blowing /suction/ of the medium

A theoretical analysis is presented of an unsteady boundary layer formed in a viscous incompressible homogeneous fluid about a infinite porous plate in the presence of uniform blowing or suction. The problem is a generalization of Gupta's analysis (1972) of Ekman layers on a porous plate. The plate and fluid are in rigid-body rotation, and the unsteady flow is induced by nontorsional vibrations of the plate. The structure of the unsteady velocity field and the associated boundary layers is determined; an exact solution is obtained for the unsteady three-dimensional Naiver-Stokes equations.