Local thermal non-equilibrium flow with viscous dissipation in a plane horizontal porous layer

被引：40
|
作者：
Barletta, A. [1 ]
Celli, M. [1 ]
机构：
[1] Alma Mater Studiorum Univ Bologna, DIENCA, I-40136 Bologna, Italy
来源：
INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2011年 / 50卷 / 01期
关键词：
Porous medium; Darcy's law; Local thermal non-equilibrium; Viscous dissipation; Linear stability; DEVELOPING FORCED-CONVECTION; CONDUCTION; ONSET; MODEL; TEMPERATURE; FLUID; WALLS; MEDIA;
D O I：
10.1016/j.ijthermalsci.2010.08.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Darcy's flow in a horizontal porous layer with impermeable boundaries is studied. The viscous dissipation effect is taken into account and the local thermal non-equilibrium (LINE) model for the energy balance is adopted. The upper boundary is assumed to be perfectly isothermal and the lower boundary is taken to be thermally insulated. The basic solution is expressed analytically. The case of a perfectly conducting solid phase is considered. The onset of convective roll instability is investigated by a linear analysis, with different values of the inter-phase heat transfer parameter. The eigenvalue problem is solved numerically by a Runge-Kutta method. (C) 2010 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：53 / 60
页数：8
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