EFFECT OF FLOW DIRECTION ON MIXED CONVECTION FROM A HORIZONTAL ROD EMBEDDED IN A POROUS-MEDIUM

被引：4

作者：

BADR, HM

POP, I

机构：

来源：

TRANSACTIONS OF THE CANADIAN SOCIETY FOR MECHANICAL ENGINEERING | 1992年 / 16卷 / 3-4期

关键词：

D O I：

10.1139/tcsme-1992-0015

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The influence of free stream direction on mixed convection heat transfer from a rod of circular cross-section immersed in a porous medium has been investigated theoretically. The rod, which has an isothermal surface, is placed with its axis horizontal and normal to oncoming flow. The free stream direction varies between the vertically upward (assisting flow) and the vertically downward (opposing flow) directions. Two coupled partial differential equations (for stream function and temperature) are solved numerically. The solution is limited to Reynolds numbers up to Re = 100 and modified Grashof numbers of Gr = 2 Re and Gr = 4 Re, respectively. The effect of the forced flow direction on the fluid flow and heat transfer characteristics is studied in detail.

引用

页码：267 / 290

页数：24