Separation in an inclined porous thermogravitational cell

被引：20

作者：

Elhajjar, Bilal ^{[1
,2
]}

Mojtabi, Abdelkader ^{[1
,2
]}

Costeseque, Pierre ^{[1
,2
]}

Charrier-Mojtabi, Marie-Catherine ^{[3
]}

机构：

[1] Univ Toulouse, INPT, UPS, IMFT, F-31400 Toulouse, France

[2] CNRS, IMFT, F-31400 Toulouse, France

[3] Univ Toulouse 3, UFR PCA, PHASE, EA 810, F-31062 Toulouse, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 21-22期

关键词：

Convection; Thermodiffusion; Thermogravitation; Soret effect; Separation; Linear stability; THERMAL-DIFFUSION; COLUMNS; LIQUID; SORET; MEDIA;

D O I：

10.1016/j.ijheatmasstransfer.2010.06.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports a theoretical and numerical study of species separation in a binary liquid mixture saturating a shallow porous layer heated from below or from above and inclined with respect to the vertical axis. It is shown that the separation can be increased using this configuration and the stability of the unicellular flow obtained in this case is investigated. The critical Rayleigh number obtained is much higher than the one leading to the maximum separation. Experiments performed with a solution of CuSO4 give results which are almost in good agreement with the analytical and the numerical results. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：4844 / 4851

页数：8

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