| 波纹管内瞬变流动的数值计算 |
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| 引用本文： | 陈勇,李隆键,田青亚. 波纹管内瞬变流动的数值计算[J]. 低温工程, 2012, 4(4): 63-68. DOI: 10.3969/j.issn.1000-6516.2012.04.013 |
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| 作者姓名： | 陈勇 李隆键 田青亚 |
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| 作者单位： | 1.重庆大学动力工程学院 重庆400030;2.北京航天发射技术研究所 北京100076 |
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| 摘 要： | 为了进行低温推进剂输送管路瞬变流的计算,推导了波纹管内瞬变流动的连续性方程和动量方程,并推出波纹管的水击波速计算公式.将波纹管控制方程等效转化后,可以通过特征线法求解.通过实例计算表明,计算结果与实际测试数据较为吻合.
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| 关 键 词： | 波纹管 水击波速 控制方程 等效转化 特征线法 |
Numerical computation of hydraulic transients in corrugated pipe |
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| Chen Yong , Li Longjian , Tian Qingya. Numerical computation of hydraulic transients in corrugated pipe[J]. Cryogenics, 2012, 4(4): 63-68. DOI: 10.3969/j.issn.1000-6516.2012.04.013 |
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| Authors: | Chen Yong Li Longjian Tian Qingya |
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| Affiliation: | 1College of Power Engineering,Chongqing University,Chongqing 400030,China)(2Beijing Institute of Space Launch Technology,Beijing 100076,China) |
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| Abstract: | The continuity equation and momentum equation of hydraulic transients in corrugated pipe were deduced,and the computational formula of water-hammer wave speed for the corrugated pipe was derived in order to calculate the transient flow in delivery pipes of cryogenic propellant.The governing equation could be solved by method of characteristics after it was equivalent transformed.A computation case shows that the calculation result is in good agreement with the actual test data. |
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| Keywords: | corrugated pipe water-hammer wave speed governing equation equivalent transform method of characteristics |
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