Effects of temperature-dependent viscosity on forced convection inside a porous medium

被引：37

作者：

Hooman, K. ^{[1
]}

Gurgenci, H. ^{[1
]}

机构：

[1] Univ Queensland, Sch Engn, Brisbane, Qld, Australia

来源：

TRANSPORT IN POROUS MEDIA | 2008年 / 75卷 / 02期

关键词：

forced convection; property variation; porous media; thermohydraulic;

D O I：

10.1007/s11242-008-9220-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Considering the exponential viscosity-temperature relation, effect of temperature-dependent viscosity on forced convection of a liquid through a porous medium, bounded by isoflux parallel plates, is investigated numerically based on the general model of momentum transfer. Local effects of viscosity variation on the distribution of velocity and temperature are analyzed. Moreover, global aspects of the problem are investigated where corrections are proposed for total pressure drop and the fully developed Nusselt number, in the form of out/in viscosity ratio. Results are obtained over a wide range of permeabilities from clear (of solid material) fluid to very low permeability, where for constant properties one expects a nearly slug flow.

引用

页码：249 / 267

页数：19

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