Numerical Study on Natural Convection of Water Near Its Density Maximum in Horizontal Annulus

被引：2

作者：

Yuan, Xiao-Feng ^{[1
]}

Li, You-Rong ^{[1
]}

Peng, Lan ^{[1
]}

Liu, Yu ^{[1
]}

机构：

[1] Chongqing Univ, Coll Power Engn, Chongqing 400044, Peoples R China

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2010年 / 23卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Natural convection; Water density inversion; Concentric annulus; STABILITY;

D O I：

10.1007/s10948-009-0610-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, numerical simulations for natural convection of water near its maximum-density in horizontal annulus with isothermal walls are performed with the finite volume method. The results show that there are different steady-state flow patterns for different control parameters in the range of calculation for concentric horizontal annulus. Furthermore, the effects of the non-dimensional parameters, which include the radius ratio and density inversion parameter, on the temperature and flow fields are discussed, and the variation of the average Nusselt number is analyzed at different conditions. It is found that density inversion of water has a great effect on natural convective heat transfer in horizontal annulus.

引用

页码：1105 / 1109

页数：5

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