Computational study of combined effects of conduction-radiation and hydromagnetics on natural convection flow past magnetized permeable plate

被引:20
作者
Ashraf, M. [1 ]
Asghar, S. [2 ]
Hossain, M. A. [3 ]
机构
[1] COMSATS Inst Informat Technol, Dept Math, Islamabad 44000, Pakistan
[2] King Abdulaziz Univ, Dept Math, Jeddah 21589, Saudi Arabia
[3] Univ Dhaka, Dept Math, Dhaka 1000, Bangladesh
关键词
hydromagnetic; fluctuating; natural convection; magnetized plate; current density; heat transfer; MAGNETOHYDRODYNAMIC BOUNDARY-LAYER; SEMIINFINITE FLAT-PLATE; HEAT-TRANSFER; VERTICAL PLATE; THERMAL-RADIATION; PRESSURE-GRADIENT; MIXED CONVECTION; MHD FLOW; TEMPERATURE; WALL;
D O I
10.1007/s10483-012-1583-7
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The computational study of the combined effects of radiation and hydromagnetics on the natural convection flow of a viscous, incompressible, and electrically conducting fluid past a magnetized permeable vertical plate is presented. The governing non-similar equations are numerically solved by using a finite difference method for all values of the suction parameter xi and the asymptotic solution for small and large values of xi. The effects of varying the Prandtl number Pr, the magnetic Prandtl number Pr (m), the magnetic force parameter S, the radiation parameter R (d), and the surface temperature theta (w) on the coefficients of the skin friction, the rate of heat transfer, and the current density are shown graphically and in tables. An attempt is made to examine the effects of the above mentioned physical parameters on the velocity profile, the temperature distribution, and the transverse component of the magnetic field.
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页码:731 / 748
页数:18
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