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首页> 外文期刊>Journal of porous media >TRIPLE DIFFUSIVE CONVECTION IN A MAXWELL FLUID SATURATED POROUS LAYER: DARCY-BRINKMAN-MAXWELL MODEL
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TRIPLE DIFFUSIVE CONVECTION IN A MAXWELL FLUID SATURATED POROUS LAYER: DARCY-BRINKMAN-MAXWELL MODEL

机译:MAXWELL流体饱和多孔层中的三重对流:DARCY-BRINKMAN-MAXWELL模型

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摘要

The onset of convective instability is analyzed in a triply diffusive Maxwell fluid saturated porous layer (using the Darcy-Brinkman-Maxwell model) in which density depends on three stratifying agencies (one of them is heat) having different diffusivities. Two problems have been analyzed mathematically. In the first problem, a sufficient condition is derived for the validity of the principle of the exchange of stabilities. Further, when the complement of this condition holds good, oscillatory motions of neutral or growing amplitude can exist. Thus as a second problem bounds for the complex growth rate are also obtained. The above results are uniformly valid for the quite general nature of the bounding surfaces.
机译:在三重扩散麦克斯韦流体饱和多孔层(使用Darcy-Brinkman-Maxwell模型)中分析了对流不稳定性的开始,其密度取决于具有不同扩散率的三个分层机构(其中一个是热)。数学上已经分析了两个问题。在第一个问题中,为稳定性交换原理的有效性推导了充分条件。此外,当该条件的补码保持良好时,可以存在中性或振幅增大的振荡运动。因此,作为第二个问题,也获得了复杂增长率的界限。上述结果对于边界表面的相当普遍的性质始终有效。

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