Heat Transfer from Rotating Porous Plate Using Homotopy Perturbation Method

The homotopy perturbation method is employed to solve the nonlinear energy equation due to temperature-dependent thermal conductivity. The effects of variable thermal conductivity and other parameters on heat transfer are investigated for a hydromagnetic flow of an incompressible viscous electrically conducting fluid past a rotating porous plate. The plate is rotating with a uniform angular velocity about an axis normal to the plate, and the fluid is rotating at infinity with the same angular velocity about a noncoincident parallel axis. It is demonstrated that the dimensionless heat transfer decreases along the vertical distance from the plate surface with the decrease in thermal conductivity and increases with the increase in suction parameter, Brinkman number, magnetic parameter, or Prandtl numbers, while the others are kept constant.