Resolution of a paradox involving viscous dissipation and nonlinear drag in a porous medium

被引：134

作者：

Nield, DA ^{[1
]}

机构：

[1] Univ Auckland, Dept Engn Sci, Auckland, New Zealand

来源：

TRANSPORT IN POROUS MEDIA | 2000年 / 41卷 / 03期

关键词：

viscous dissipation; Forchheimer model; Brinkman model; inertial effects; nonlinear drag; forced convection; natural convection;

D O I：

10.1023/A:1006636605498

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The modelling of viscous dissipation in a porous medium saturated by an incompressible fluid is discussed, for the case of Darcy, Forchheimer and Brinkman models. An apparent paradox relating to the effect of inertial effects on viscous dissipation is resolved, and some wider aspects of resistance to flow (concerning quadratic drag and cubic drag) in a porous medium are discussed. Criteria are given for the importance or otherwise of viscous dissipation in various situations.

引用

页码：349 / 357

页数：9

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