Kuppers-Lortz instability in rotating Rayleigh-B,nard convection in a porous medium

被引：3

作者：

Rameshwar, Y. ^{[1
]}

Sultana, Shakira ^{[1
]}

Tagare, S. G. ^{[2
]}

机构：

[1] Osmania Univ, Univ Coll Sci, Dept Math, Hyderabad 500004, Andhra Pradesh, India

[2] Disha Inst Management & Technol, Dept Math, Raipur 492101, Madhya Pradesh, India

来源：

MECCANICA | 2013年 / 48卷 / 10期

关键词：

Darcy-Lapwood-Brinkman model; Boussinesq approximation; Nusselt number; Kuppers-Lortz instability; BENARD CONVECTION; FLUID LAYER; TURBULENCE; TRANSITION;

D O I：

10.1007/s11012-013-9756-1

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The Darcy-Lapwood-Brinkman model with the Boussinesq approximation is used to study Kuppers-Lortz (KL) instability in the nonlinear regime of rotating Rayleigh-B,nard convection in a sparsely packed porous medium near the onset of stationary convection. The threshold Taylor numbers and critical angles for the onset of KL instability are obtained for different values of I >, M for finite Prandtl numbers (1.5a parts per thousand currency signPra parts per thousand currency sign100). Heat transfer is studied from Nusselt number at the onset of stationary convection.

引用

页码：2401 / 2414

页数：14

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