| 部分开口空腔内自然对流传热的数值研究 |
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| 引用本文： | 夏吉良,辛明道.部分开口空腔内自然对流传热的数值研究[J].重庆大学学报(自然科学版),1989,12(5):20-26. |
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| 作者姓名： | 夏吉良 辛明道 |
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| 作者单位： | 重庆大学工程热物理研究所
(夏吉良，辛明道)，重庆大学工程热物理研究所(张洪济) |
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| 摘 要： | 本文描述具有部分开口的方形空腔内的非稳态及稳态的二维层流自然对流传热的数值分析结果。方形空腔由两个水平绝热壁、一个竖直加热壁而另一个竖直壁为冷壁但具有变化的开口度组成。数值结果覆盖了雷利数Rα=10~3～10~6及开口度Y_0=0.0～1.0。结果表明开口度对空腔内的自然对流流动与传热有显著的影响,且影响的程度随雷利数改变而变化。
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| 关 键 词： | 自然对流传热 部分开口空腔 开口度 |
NUMERICAL STUDY OF NATURAL CONVECTION HEAT TRANSFER IN A PARTIAL CAVITY |
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| Xia Jiliang Xin Mingdao Zhang Hongji.NUMERICAL STUDY OF NATURAL CONVECTION HEAT TRANSFER IN A PARTIAL CAVITY[J].Journal of Chongqing University(Natural Science Edition),1989,12(5):20-26. |
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| Authors: | Xia Jiliang Xin Mingdao Zhang Hongji |
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| Institution: | Xia Jiliang Xin Mingdao Zhang Hongji |
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| Abstract: | A numerical analysis is carried out for the unsteady and steady, two-dimensional, laminar natural convection heat transfer in a square partial cavity. The partial cavity consists of two horizontal adiabatic surfaces, a vertical hot surface and a cold surface with varied opening. The results are obtained for Ra = 10~3-10~6 and Y0 = 0.0-1.0. This study shows that the opening size has significant effect on the flow and heat transfer in partial cavity, and the. extent of its effect changes with different Rayleigh numbers. |
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| Keywords: | natural convection heat tranefer partial cavity opening |
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