| 多层开口方腔混合对流换热的数值模拟 |
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| 引用本文： | 孙猛,刘靖,李志宏,刘石.多层开口方腔混合对流换热的数值模拟[J].建筑科学,2007,23(2):51-53. |
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| 作者姓名： | 孙猛 刘靖 李志宏 刘石 |
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| 作者单位： | 中国科学院,工程热物理研究所,北京,100080 |
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| 摘 要： | 本文研究了竖直外界来流方向的三层开口方腔内的混合对流换热问题。文中对不同的格拉晓夫数、雷诺数进行了数值模拟。计算结果得出与它们对应的不同流型及换热效果,同时表明同一条件下不同层方腔之间由于浮力差别产生的相互影响使得它们的流动特征与换热效果不同。
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| 关 键 词： | 混合对流 多层开口方腔 数值模拟 |
| 文章编号： | 1002-8528（2007）02-0051-03 |
| 收稿时间： | 2006-10-17 |
| 修稿时间： | 2006-10-172006-11-07 |
Numerical Simulation of Mixed Convection Heat Transfer in Multi-storey Open-ended Cavity |
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| SUN Meng,LIU Jing,LI Zhi-hong,LIU Shi.Numerical Simulation of Mixed Convection Heat Transfer in Multi-storey Open-ended Cavity[J].Building Science,2007,23(2):51-53. |
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| Authors: | SUN Meng LIU Jing LI Zhi-hong LIU Shi |
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| Affiliation: | Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | In this paper,mixed convection heat transfer in three-storey open-ended enclosures has been numerically studied for vertical outflow angles of attack.Different Grashof number and Reynolds number were considered and the different flow patterns and heat exchange were presented respectively.Also,under the same conditions,different flow pattern characteristics and heat exchange effectiveness would be obtained due to the difference of buoyant forces which was occurred in cavities of different stories. |
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| Keywords: | mixed convection multi-storey open-ended cavity numerical simulation |
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