| 倾斜角度对封闭方腔内液体自然对流的影响 |
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| 引用本文： | 孟曦,刘庆红,郑华,殷结峰,马兵善,郭玉龙.倾斜角度对封闭方腔内液体自然对流的影响[J].四川制冷,2012(1):84-86,89. |
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| 作者姓名： | 孟曦 刘庆红 郑华 殷结峰 马兵善 郭玉龙 |
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| 作者单位： | [1]兰州理工大学土木工程学院,兰州730050 [2]西宁市排水公司,西宁810000 [3]兰州新现代建筑设计有限公司,兰州730050 |
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| 摘 要： | 在多种倾斜角度下,对封闭腔内液体进行了数值模拟。重点分析了Ra数变化和倾斜角度对对流传热的影响。研究表明：随着Ra数的增大,换热由热传导为主转化为对流换热为主;倾斜角度对Nu数的变化影响很大,并且当倾斜角度处于90o～135o时,Nu数可以达到最大值。
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| 关 键 词： | 自然对流 角度 数值模拟 |
Effect of Inclination Angle on Natural Convection in Enclosure |
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| Authors: | Meng Xi Liu Qinghong Zheng Hua Yin Jiefeng Ma Bingshan Guo Yulong |
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| Affiliation: | Meng Xi Liu Qinghong Zheng Hua Yin Jiefeng Ma Bingshan Guo Yulong(1.School of civil Engineering,Lanzhou Technological University,Lanzhou,730050;2.Xining Drainage Company,Xining,810000;3.Lanzhou Xinxiandai Design Co.,Ltd,Lanzhou,730050) |
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| Abstract: | Inclination angle on natural convection heat transfer and fluid flow in a two-dimensional enclosure filled with fluid has been analyzed numerically.The effect of the Rayleigh number on and the change of inclination were investigated.The results indicate that with the increasing Rayleigh number,the heat conduction in the heat transfer mechanism is transformed into convective heat transfer primarily.The inclination angle has a great effect on the Nusselt number.And when angle is at 90DHS-150DHS,the Nusselt number can reach the maximum. |
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| Keywords: | natural convection angle numerical simulation |
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