Nonlinear thermal instability in a horizontal porous layer with an internal heat source and mass flow

被引：11

作者：

Matta, A. ^{[1
]}

Narayana, P. A. L. ^{[1
]}

Hill, A. A. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Math, Hyderabad 502205, Telangana, India

[2] Univ W England, Dept Biol Biomed & Analyt Sci, Bristol BS16 1QY, Avon, England

来源：

ACTA MECHANICA | 2016年 / 227卷 / 06期

关键词：

INCLINED TEMPERATURE-GRADIENT; DOUBLE-DIFFUSIVE CONVECTION; STABILITY; GENERATION;

D O I：

10.1007/s00707-016-1591-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Linear and nonlinear stability analyses of Hadley-Prats flow in a horizontal fluid-saturated porous medium with a heat source are performed. The results indicate that, in the linear case, an increase in the horizontal thermal Rayleigh number is stabilizing for both positive and negative values of mass flow. In the nonlinear case, a destabilizing effect is identified at higher mass flow rates. An increase in the heat source has a destabilizing effect. Qualitative changes appear in R-z as the mass flow moves from negative to positive for different internal heat sources.

引用

页码：1743 / 1751

页数：9

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