Laminar Flow Between Rotating Porous Disks

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Abstract
A perturbation solution of the equations of motion for steady, incompressible, laminar flow between a porous rotating disk and a stationary nonporous disk has been obtained. The solution obtained is valid for small wall Reynolds numbers and various values of the rotation coefficient, α=2h3 ω2/v V, in which h = the distance between disks, ω = the angular velocity, V = the magnitude of suction or injection velocity, and v = the kinematic viscosity. Expressions for the velocity, pressure, viscous stress, and resisting moment are presented.

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