| 开口方腔内混合对流换热的数值模拟 |
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| 引用本文： | 孙猛,雷兢,刘靖,刘石. 开口方腔内混合对流换热的数值模拟[J]. 热科学与技术, 2006, 5(4): 295-300 |
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| 作者姓名： | 孙猛 雷兢 刘靖 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;中国科学院,工程热物理研究所,北京,100080;中国科学院,工程热物理研究所,北京,100080;中国科学院,工程热物理研究所,北京,100080 |
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| 基金项目： | 国家自然科学基金资助项目(4501017/D0105) |
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| 摘 要： | 研究了两种不同外界来流方向的开口方腔内的混合对流换热问题。对不同的格拉晓夫数、R e以及纵横比进行了数值模拟。计算结果表明了与它们相对应的不同流型及换热效果,同时表明通过增加流速可以减小方腔与周围环境的热量交换。
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| 关 键 词： | 混合对流 开口方腔 数值模拟 |
| 文章编号： | 1671-8097(2006)04-0295-06 |
| 收稿时间： | 2006-08-30 |
| 修稿时间： | 2006-10-17 |
Numerical simulation of mixed convective heat transfer in open-ended cavity |
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| SUN Meng,LEI Jing,LIU Jing,LIU Shi. Numerical simulation of mixed convective heat transfer in open-ended cavity[J]. Journal of Thermal Science and Technology, 2006, 5(4): 295-300 |
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| Authors: | SUN Meng LEI Jing LIU Jing LIU Shi |
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| Affiliation: | Inst. of Eng. Thermophys. , Chinese Acad. of Sci., Beijing 100080, China |
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| Abstract: | Mixed convection heat transfer in open-ended enclosures was studied numerically for two different inlet angles of attack.Different Grashof number,Reynolds number and the aspect ration were experimented numerically in the present study.The results show that the heat exchange are different when the flow patterns are different.the heat transfer from the cavity to the atmosphere can be decreased by increasing the velocity. |
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| Keywords: | mixed convection open-ended cavity numerical simulation |
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