| 温度梯度对Taylor稳定性影响及其应用 |
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| 引用本文： | 文东升,王补宣,柴立和,彭晓峰. 温度梯度对Taylor稳定性影响及其应用[J]. 大连理工大学学报, 2001, 41(Z1): S55-S58 |
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| 作者姓名： | 文东升 王补宣 柴立和 彭晓峰 |
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| 作者单位： | 清华大学热能工程系, |
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| 基金项目： | 国家自然科学基金，59995550-3， |
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| 摘 要： | 分析有传热传质效应时的Rayeigh-Taylor界面稳定性问题,导出了相应的Rayeigh-Taylor不稳定临界波长和最危险波长的表达式,并有很好的外延性.结果表明:温度梯度G1＜105时,传热传质效应对临界波长和最危险波长的影响很小,可以忽略不计;G1＞106时,界面传热传质效应的影响就不可忽略.温度梯度会增强界面的Rayeigh-Taylor稳定性,提高临界波长和最危险波长的值,从而降低临界热负荷的预示值.
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| 关 键 词： | 稳定性 传热 传质 临界热负荷 |
| 文章编号： | 1000-8608(2001)S1-S0055-04 |
| 修稿时间： | 2001-02-01 |
Effects of heat and mass transfer on Rayleigh-Taylor stability and its application |
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| WEN Dong sheng,WANG Bu xuan,CHAI Li he,PENG Xiao feng. Effects of heat and mass transfer on Rayleigh-Taylor stability and its application[J]. Journal of Dalian University of Technology, 2001, 41(Z1): S55-S58 |
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| Authors: | WEN Dong sheng WANG Bu xuan CHAI Li he PENG Xiao feng |
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| Abstract: | The effects of heat and mass transfer on the Rayleigh Taylor stability have been analysed, and the critical and most dangerous wavelength incorporating with the effects of temperature gradient was acquired. The results show that, when the temperature gradient G 1<10 5, the effects of heat and mass transfer can be neglected; but when G 1>10 6, the temperature gradient will enhance the stability of interface as to increase the critical and most dangerous wavelength. The result for application to CHF computation shows that CHF will decrease with increasing of wall temperature. |
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| Keywords: | stability heat transfer mass transfer critical heat flux |
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