Unsteady Rotational Motion of a Slip Spherical Particle in a Viscous Fluid

الملخص EN

The unsteady rotational motion of a slip spherical particle with a nonuniform angular velocity in an incompressible viscous fluid flow is discussed.

The technique of Laplace transform is used.

The slip boundary condition is applied at the surface of the sphere.

A general formula for the resultant torque acting on the surface of the sphere is deduced.

Special fluid flows are considered and their results are represented graphically.