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Convection in a porous layer with a surface reaction

机译:表面反应在多孔层中对流

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We develop a problem recently studied by Postelnicu in which a horizontal layer of porous material is subject to a chemical reaction at the base of the layer. The porous medium is of Darcy type and the layer is saturated with a non-isothermal liquid containing a concentration of the reacting chemical. The equations are developed and then it is shown that if the reaction parameter B of Postelnicu exceeds a critical value convection commences but as oscillatory convection, not stationary convection, as previously thought.
机译:我们提出了Postelnicu最近研究的一个问题,其中多孔材料的水平层在该层的底部经受化学反应。多孔介质是达西(Darcy)型的,并且该层被含有一定浓度的反应化学物质的非等温液体饱和。发展方程,然后表明,如果Postelnicu的反应参数B超过临界值,对流开始,但如先前认为的那样,是振荡对流而不是平稳对流。

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