NATURAL-CONVECTION HEAT-TRANSFER OF COLD-WATER BETWEEN CONCENTRIC CYLINDERS FOR HIGH RAYLEIGH NUMBERS - A NUMERICAL STUDY

被引：15
|
作者：
RAGHAVARAO, CV
SANYASIRAJU, YVSS
机构：
[1] Department of Mathematics, Indian Institute of Technology, Madras
来源：
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE | 1994年 / 32卷 / 09期
关键词：
D O I：
10.1016/0020-7225(94)90122-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A numerical study of the natural convection heat transfer of cold water, having a density inversion between two isothermal horizontal concentric cylinders is studied. The governing equations are solved by upwind finite difference method for different annulus radius ratios with Rayleigh number range 10(2)-10(5) and the inversion parameter gamma varies between -2 and 0. The results indicate that the flow patterns are greatly influenced by the inversion parameter, which determines the effect of the additional convection that arises from the inversion of density of water at 3.98-degrees-C within the annulus.
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页码：1437 / 1450
页数：14
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