Effects of thermal radiation on MHD viscous fluid flow and heat transfer over nonlinear shrinking porous sheet  

作　　者：G.C.SHIT R.HALDAR 

机构地区：[1]Department of Mathematics,Jadavpur University

出　　处：《Applied Mathematics and Mechanics(English Edition)》2011年第6期677-688,共12页应用数学和力学（英文版）

基　　金：Project supported by the Department of Science and Technology, Government of India (DST-GOI)Funded Promotion of University Research and Scientific Excellence (PURSE) Programme of Jadavpur University (No. SR/S9/Z-23/2008/5)

摘　　要：This paper investigates the effects of thermal radiation on the magnetohy- drodynamic （MHD） flow and heat transfer over a nonlinear shrinking porous sheet. The surface velocity of the shrinking sheet and the transverse magnetic field are assumed to vary as a power function of the distance from the origin. The temperature dependent viscosity and the thermal conductivity are also assumed to vary as an inverse function and a linear function of the temperature, respectively. A generalized similarity transfor- mation is used to reduce the governing partial differential equations to their nonlinear coupled ordinary differential equations, and is solved numerically by using a finite difference scheme. The numerical results concern with the velocity and temperature profiles as well as the local skin-friction coefficient and the rate of the heat transfer at the porous sheet for different values of several physical parameters of interest.This paper investigates the effects of thermal radiation on the magnetohy- drodynamic （MHD） flow and heat transfer over a nonlinear shrinking porous sheet. The surface velocity of the shrinking sheet and the transverse magnetic field are assumed to vary as a power function of the distance from the origin. The temperature dependent viscosity and the thermal conductivity are also assumed to vary as an inverse function and a linear function of the temperature, respectively. A generalized similarity transfor- mation is used to reduce the governing partial differential equations to their nonlinear coupled ordinary differential equations, and is solved numerically by using a finite difference scheme. The numerical results concern with the velocity and temperature profiles as well as the local skin-friction coefficient and the rate of the heat transfer at the porous sheet for different values of several physical parameters of interest.

关 键 词：thermal radiation shrinking sheet variable viscosity variable thermalconductivity 

分 类 号：O361.3[理学—流体力学]