UNSTEADY THERMOSOLUTAL OPPOSING CONVECTION OF LIQUID WATER MIXTURE IN A SQUARE CAVITY .2. FLOW STRUCTURE AND FLUCTUATION ANALYSIS

被引：15

作者：

CHANG, J

LIN, TF

机构：

[1] Department of Mechanical Engineering, National Chiao Tung University, Hsinchu

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1993年 / 36卷 / 05期

关键词：

D O I：

10.1016/S0017-9310(05)80101-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Effects of buoyancy ratio on the flow structure and fluctuating characteristics of the velocity, temperature and concentration fields are numerically investigated for a liquid-water mixture cavity subject to opposing horizontal thermal and solutal buoyancies at high thermal and solutal Rayleigh numbers. Three different flow structures, namely, the multilayer, mixed and secondary cell flows, were predicted. Time histories and power spectra for flow variables probed at several locations indicate that the flow is highly unstable. The collision of the thermally and solutally driven cells causes the secondary cell flow to be chaotic. Moreover, flow bifurcation is noted.

引用

页码：1333 / 1345

页数：13

共 10 条

[1] UNSTEADY THERMOSOLUTAL OPPOSING CONVECTION OF A LIQUID WATER MIXTURE IN A SQUARE CAVITY .1. FLOW FORMATION AND HEAT AND MASS-TRANSFER CHARACTERISTICS [J].