COMBINED EFFECTS OF RADIATION AND JOULE HEATING WITH VISCOUS DISSIPATION ON MAGNETOHYDRODYNAMIC FREE CONVECTION FLOW AROUND A SPHERE
Keywords:
Natural convection, radiation, prandtlnumber, joule heating parameter, viscous dissipation parameter, magnetohydrodynamicsAbstract
The effects of radiation and joule heating with viscous dissipation on magnetohydrodynamic (MHD) free convection flow around a sphere have been studied in this paper. The governing equations are transformed into dimensionless non-similar equations by using a set of suitable transformations and solved numerically by the finite difference method along with Newton’s linearization approximation. The solutions are expressed in terms of the skin friction coefficient, the rate of heat transfer, the velocity profiles, and temperature profiles over the whole boundary layer. The effects of pertinent parameters such as radiation parameter Rd, viscous dissipation parameter Vd, magnetic parameter M, joule heating parameter J, and the Prandtl number Pr are shown graphically and discussed.
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