ROTATION OF A POROUS APPROXIMATE SPHERE IN AN APPROXIMATE SPHERICAL CONTAINER
The problem of steady rotation of a porous approximate sphere located at the center of an approximate spherical container has been investigated. The Brinkman’s model for the flow inside the porous approximate sphere and the Stokes equation for the flow in an approximate spherical container were used to study the motion. The torque experienced by the porous approximate spherical particle in the presence of cavity is obtained and wall correction factor is calculated. The special cases of rotation of a porous sphere and a solid sphere in a spherical container are obtained from the present analysis.
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