Non-uniform Slot Injection (suction) into Mhd Boundary Layer Flow over a Cylinder
نویسندگان
چکیده
An analysis is performed to study the effect of non-uniform slot injection (suction) into a steady two-dimensional laminar boundary layer flow with an applied magnetic field. Non-similar solutions have been obtained from the starting point of the streamwise co-ordiante to the exact point of separation. The difficulties arising at the starting point of the streamwise co-ordinate, at the edges of the slot and at the point of separation have been overcome by applying an implicit finite difference scheme with the quasilinearization technique and an appropriate selection of finer step size along the streamwise direction. Numerical results are obtained to display the effect of magnetic field and slot injection (suction) on skin friction and heat transfer coefficients at the wall. The results indicate that magnetic field increases both skin friction and heat transfer coefficients. And in the case of slot suction, the skin friction and heat transfer coefficients increase while in case of injection they decrease. Further boundary layer separation is delayed by non-uniform slot suction whereas slot injection does the opposite.
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