FREE-CONVECTION FROM A HORIZONTAL LINE HEAT-SOURCE IN A POWER-LAW FLUID-SATURATED POROUS-MEDIUM

被引：15
|
作者：
NAKAYAMA, A
机构：
[1] Department of Energy and Mechanical Engineering, Shizuoka University, Johoku, Hamamatsu
来源：
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1993年 / 14卷 / 03期
关键词：
FREE CONVECTION; CONCENTRATED HEAT SOURCE; POROUS MEDIA; NON-NEWTONIAN FLUID;
D O I：
10.1016/0142-727X(93)90059-V
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Free convection from a horizontal line heat source in a non-Newtonian fluid-saturated porous medium has been investigated analytically, exploiting the boundary-layer approximation. The boundary-layer equations based on the power-law model appropriate for the Darcy flows are shown to possess a class of similarity solutions for arbitrary values of the power-law index. Closed-form exact solutions for both flow and temperature fields are presented along with the approximate solutions based on the integral energy equation, and examined to investigate the non-Newtonian flow and heat transfer characteristics.
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页码：279 / 283
页数：5
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