Effect of radiation on natural convection flow on a sphere in presence of heat generation

被引:20
|
作者
Miraj, M. [2 ]
Alim, M. A. [1 ]
Mamun, M. A. H. [3 ]
机构
[1] Bangladesh Univ Engn & Technol, Dept Math, Dhaka 1000, Bangladesh
[2] Dhaka Commerce Coll, Dept Math, Dhaka 1216, Bangladesh
[3] Bangladesh Univ Engn & Technol, Dept Mech Engn, Dhaka 1000, Bangladesh
关键词
Natural convection; Radiation; Heat generation; Nusselt number; BOUNDARY-LAYER;
D O I
10.1016/j.icheatmasstransfer.2010.01.013
中图分类号
O414.1 [热力学];
学科分类号
摘要
Effect of radiation on natural convection flow around a sphere in presence of heat generation has been investigated. 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. We have focused our attention on the evaluation of velocity profiles, temperature profiles, shear stress in terms of local skin friction and the rate of heat transfer in terms of local Nusselt number for different values of heat generation parameter, radiation parameter and the Prandlt number and the numerical results have been shown graphically. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:660 / 665
页数:6
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