Transient double diffusive convection in a vertical enclosure with asymmetrical boundary conditions

被引：12
作者：
Mergui, S
Gobin, D
机构：
[1] Univ Paris 06, CNRS, UMR 7608, FAST, F-91405 Orsay, France
[2] Univ Paris 11, CNRS, UMR 7608, FAST, F-91405 Orsay, France
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2000年 / 122卷 / 03期
关键词：
computational double diffusion; heat transfer; modeling; natural convection;
D O I：
10.1115/1.1286673
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study deals with the numerical analysis of transient heat and species transfer by natural convection in a binary fluid vertical layer. The cavity is differentially heated and a solutal buoyancy force is created by imposing a concentration step at one vertical wall. This refers to the experimental situation where the composition gradient inducing the solutal buoyancy force is created by melting of pure ice in a salty solution. The constitution of the flow structure and the time evolution of the heat and mass transfer characteristics are studied for opposing body forces over a range of thermal and solutal Rayleigh numbers. The numerical results allow to provide a better insight into the mechanisms driving the heat and species transfer at thigh Lewis number thermohaline convection.
引用
收藏
页码：598 / 602
页数：5
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