EFFECT OF THE CONVECTIVE INERTIA TERM ON BENARD CONVECTION IN A POROUS-MEDIUM

被引：43

作者：

LAGE, JL

机构：

[1] Mechanical Engineering Department, Southern Methodist University, Dallas, TX

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 1992年 / 22卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/10407789208944778

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal impact of the convective inertia term, which resembles the term used in the Navier-Stokes equation for pure fluids, is investigated numerically considering Benard convection in a fluid-saturated porous medium. There has been some theoretical discussion in the archival literature about the correctness of including an inertia term in the form of a velocity divergent. The present study shows numerically that this convective term (inertia) is negligible for most cases and has a negligible effect on the overall heat transfer. The relative importance of the inertia and Forchheimer terms based on scale analysis is found to agree with the numerical results. This evidence adds strength to the theoretical assessment found in the literature.

引用

页码：469 / 485

页数：17

共 27 条

[1] CONVECTION IN A BOX OF POROUS MATERIAL SATURATED WITH FLUID [J].