Moving boundary value problem in non-Newtonian fluid is considered. Exact a
nalytical solution for the flow of second-grade fluid for a rigid moving pl
ate oscillating in its own plane, is obtained. The Doppler effect has been
observed due to the motion of the plate. The shearing stress on the plate i
s also calculated. It is concluded that the solutions for stationary porous
boundaries can be obtained from the solutions of moving rigid boundaries.
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