| 暂态过程中液柱分离的探讨 |
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| 引用本文： | 刘佑华 吴荣樵. 暂态过程中液柱分离的探讨[J]. 水动力学研究与进展(A辑), 1990, 5(3): 10-17 |
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| 作者姓名： | 刘佑华 吴荣樵 |
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| 作者单位： | 武汉水利电力学院(刘佑华)，武汉水利电力学院(吴荣樵) |
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| 摘 要： | 本文首先介绍了我们对水平管道系统中的液柱分离现象所作的实验。实验结果表明:汽化压力不是产生液柱分离的充分条件;伴随着液柱分离还有众多的小空泡生成和溃灭。在实验的基础上,我们提出了新的计算模型,称之为临界大空穴模型。利用此模型对暂态过程中的液柱分离现象及其影响进行了计算,其结果与所作的实验基本上是吻合的。
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| 关 键 词： | 暂态过程 液柱 分离 流体力学 水锤 |
Iovestigation of Column Separation during Transients |
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| Liu You-hua Wu Rong-qiao. Iovestigation of Column Separation during Transients[J]. Chinese Journal of Hydrodynamics, 1990, 5(3): 10-17 |
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| Authors: | Liu You-hua Wu Rong-qiao |
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| Affiliation: | Wuhan Institute of Hydraulic and Electric Engineering |
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| Abstract: | In the paper, the experiment, in which the column separation phenomenon in the horizontal duct is investigated, is presented. The experimental results indicate that vapour pressure is not the sufficient condition under which column separation occurs, and that a number of small cavities grow and collapse when liquid column is separated. Based on the experiment, a new computational model--the large critical cavity model is proposed. Column separation phenomenon and its influence during transients are calculated using this model. The calculational results are basically coincident with the experimental ones. |
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| Keywords: | water hammer column separation gas release fluid transients. |
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