周期性渐扩-渐缩通道层流流动与换热特性研究

计算物理 ›› 2001, Vol. 18 ›› Issue (3): 225-229.

周期性渐扩-渐缩通道层流流动与换热特性研究

徐佳莹, 王秋旺, 杨小玉, 王良, 陶文铨

西安交通大学能源与动力工程学院热流中心, 陕西西安 710049

收稿日期:1999-08-19 修回日期:2000-04-27 出版日期:2001-05-25 发布日期:2001-05-25
作者简介:徐住莹(1975-),男,湖北鄂州,硕士,主要从事传热强化及数值模拟研究.
基金资助:
国家自然科学基金(59995460-2)和高等教育学校博士学科点专项科研基金(9569801)资助项目

NUMERICAL STUDY ON THE LAMINAR FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS IN PERIODIC DIVERGENT-CONVERGENT CHANNELS

XU Jia-ying, WANG Qiu-wang, YANG Xiao-yu, WANG Liang, TAO Wen-quan

School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P R China

Received:1999-08-19 Revised:2000-04-27 Online:2001-05-25 Published:2001-05-25

摘要/Abstract

摘要： 以渐扩-渐缩通道内周期性充分发展的层流流动与换热为研究对象,采用SIMPLE算法,适体坐标网格及Amano周期性边界条件的实施方案对之进行数值模拟,计算了在层流范围内不同Re数下的流动与换热规律.结果表明,在Re=100~1000范围内,与平行平板通道相比,阻力增强了(10~200)%,换热增强了(40~320)%.

关键词: 渐扩-渐缩通道, 周期性充分发展, SIMPLE算法, 适体坐标

Abstract: The laminar flow and heat transfer of water in periodic fully-developed divergent-convergent channels has been investigated numerically.The SIMPLE algorithm and body-fitted coordinates (BFC) are used.The periodic boundary condition is treated using the method proposed by Amano.It is found that under the range of Re=100~1 000,the friction factor is about 10%~200% more than that of parallel plate channel,while the average Nusselt number is about 40%~320% more than that of parallel plate channel.

Key words: divergent-convergent channels, periodic fully-developed, SIMPLE algorithm, BFC

中图分类号:

TK124

徐佳莹, 王秋旺, 杨小玉, 王良, 陶文铨. 周期性渐扩-渐缩通道层流流动与换热特性研究[J]. 计算物理, 2001, 18(3): 225-229.

XU Jia-ying, WANG Qiu-wang, YANG Xiao-yu, WANG Liang, TAO Wen-quan. NUMERICAL STUDY ON THE LAMINAR FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS IN PERIODIC DIVERGENT-CONVERGENT CHANNELS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2001, 18(3): 225-229.

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