Transient double-diffusive convection in an enclosure with large density variations

被引：37

作者：

Sun, H. ^{[1
]}

Lauriat, G. ^{[1
]}

Sun, D. L. ^{[2
]}

Tao, W. Q. ^{[2
]}

机构：

[1] Univ Paris Est, Lab Modelisat & Simulat Multiechelle, MSME, CNRS,FRE 3160, F-77454 Champs Sur Marne 2, Marne La Vallee, France

[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 04期

关键词：

Computational fluid mechanics; Double-diffusive convection; Low-Mach number flows; Thermal and solutal Froude numbers; LARGE TEMPERATURE DIFFERENCES; EFFICIENT SEGREGATED ALGORITHM; VERTICAL RECTANGULAR ENCLOSURE; INCOMPRESSIBLE FLUID-FLOW; HEAT-TRANSFER PROBLEMS; MACH NUMBER SOLVERS; NATURAL-CONVECTION; HORIZONTAL TEMPERATURE; CONCENTRATION GRADIENTS; BENCHMARK PROBLEM;

D O I：

10.1016/j.ijheatmasstransfer.2009.10.035

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An extension of a slightly compressible flow model to double-diffusive convection of binary mixtures of ideal gases enclosed in a cavity is presented. The problem formulation is based on a low-Mach number approximation and the impermeable surface assumption is not invoked. The main objectives of this work are the statement of the mathematical model used, and the analysis of some significant results showing the influence of density variation on transient solutions for pure thermal or pure solutal convection as well as for thermosolutal convection in the special case where the thermal and solutal buoyancy forces are equal in intensity either for aiding or for opposing cases. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：615 / 625

页数：11

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