每年出版 12 期
ISSN 打印: 1091-028X
ISSN 在线: 1934-0508
Indexed in
LINEAR AND NONLINEAR STABILITY ANALYSIS OF A FLUID-SATURATED DARCY-BRINKMAN POROUS MEDIA VIA INTERNAL HEAT SOURCE/SINK WITH THE EFFECT OF BOUNDARY HEATING/COOLING
摘要
The effects of the Darcy-Brinkman number, internal heat source/sink, and heat input/extract through the lower boundary at the onset of convection in a Darcy-Brinkman porous medium was analyzed using linear and nonlinear analysis. The normal mode technique is used for linear analysis and the energy method is used for nonlinear stability analysis. The presence of heat generation/extraction within the layer and through the boundary may lead to the possibility of the existence of a subcritical instability. The effects of the Darcy-Brinkman number and internal heat parameter on critical Rayleigh numbers were analyzed graphically and numerically using the Chebyshev pseudospectral method.
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