| 单面加热矩形通道热入口段层流对流换热特性的场协同分析 |
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| 引用本文： | 王军荣,闵敬春,宋耀祖.单面加热矩形通道热入口段层流对流换热特性的场协同分析[J].工程热物理学报,2004,25(3):478-480. |
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| 作者姓名： | 王军荣 闵敬春 宋耀祖 |
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| 作者单位： | 清华大学工程力学系,传热强化与过程节能教育部重点实验室,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(863计划项目 No.2002AA744042)，高等学校博士学科点专项科研基金 |
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| 摘 要： | 对单面加热矩形通道热入口段的层流对流换热问题进行了数值模拟研究,给出了不同截面比的局部努赛尔数。推导出单面加热时的场协同方程,以此分析了不同截面比下加热边界条件对努赛尔数的影响规律。
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| 关 键 词： | 矩形通道 对流换热 层流入口段 场协同 |
| 文章编号： | 0253-231X(2004)03-0478-03 |
| 修稿时间： | 2003年12月26 |
FIELD COORDINATION ANALYSIS OF CONVECTIVE HEAT TRANSFER IN THERMAL ENTRANCE REGION IN RECTANGULAR DUCTS WITH ONE SIDE HEATED |
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| WANG Jun-Rong,MIN Jing-Chun,SONG Yao-Zu.FIELD COORDINATION ANALYSIS OF CONVECTIVE HEAT TRANSFER IN THERMAL ENTRANCE REGION IN RECTANGULAR DUCTS WITH ONE SIDE HEATED[J].Journal of Engineering Thermophysics,2004,25(3):478-480. |
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| Authors: | WANG Jun-Rong MIN Jing-Chun SONG Yao-Zu |
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| Institution: | WANG Jun-Rong,MIN Jing-Chun,SONG Yao-Zu Department of Engineering Mechanics,Tsinghua University,Education Ministry Key Lab of Heat Transfer Enhancement and Energy Conservation,Beijing 100084,China |
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| Abstract: | A numerical study is conducted for laminar flow heat transfer in rectangular ducts in the
thermal entrance region with one side heated and three sides adiabatic. The local Nusselt numbers
are obtained and compared for different aspect ratios. Field coordination equations are derived for the
one side heated thermal boundary condition. Effects of thermal boundary condition and aspect ratio
on Nusselt number are discussed and analyzed from the view of field coordination. |
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| Keywords: | rectangular duct convective heat transfer thermal entrance region field coordination |
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