Unsteady MHD Micropolar Fluid Flow Generated Due to Longitudinal and Torsional Oscillations of Circular Cylinder
نویسنده
چکیده
Abstract: The flow generated by a circular cylinder, performing longitudinal and torsional oscillations, in an infinite expanse of a micropolar fluid is studied under the influence of uniform transverse magnetic field. Analytical expressions for the velocity components and micro rotation components are obtained by using no slip and hyper stick conditions on the boundary of the cylinder. The effects of Magnetic parameter, coupling number, Reynolds number and couple stress parameter on the transverse and axial velocity components are discussed. Explicit expression for the drag force acting on the wall of the cylinder is derived and the effects of micropolar parameters on the drag are shown graphically.
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