| 单相流体通过节流管的阻力特性研究 |
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| 引用本文： | 袁益超,陈祖耀.单相流体通过节流管的阻力特性研究[J].上海理工大学学报(社会科学版),1991(2). |
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| 作者姓名： | 袁益超 陈祖耀 |
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| 作者单位： | 上海机械学院动力工程学院
(袁益超)，上海机械学院动力工程学院(陈祖耀) |
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| 摘 要： | 本文导出了单相流体通过节流管的压降计算模型,其理论计算值与试验结果相吻合,精度可满足一般工程测量的要求。文中还指出,单相流体通过节流管的阻力损失主要是突扩阻力损失,但其进口突缩阻力也不能忽略;此外,对于较长的节流管,还须计及沿程摩阻损失。
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| 关 键 词： | 节流管 单相流 阻力特性 |
A STUDY OF THE RESISTANCE CHARACTERISTICS OF THE SINGLE-PHASE FLOW THROUGH THE THROTTLE TUBE |
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| Yuan Yichao Chen Zuyao.A STUDY OF THE RESISTANCE CHARACTERISTICS OF THE SINGLE-PHASE FLOW THROUGH THE THROTTLE TUBE[J].Journal of University of Shanghai For Science and Technilogy(Social Science),1991(2). |
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| Authors: | Yuan Yichao Chen Zuyao |
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| Institution: | Yuan Yichao Chen Zuyao |
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| Abstract: | On the basis of the analysis of the flow mechanism of throttle tubes, the pressure drop model of the single-phase flow through the throttle tube is derived from the mass, momentum and energy conservation equations. Good agreement is found between the pressure drop model and the experimental results. The accuracy of the model gained in the experiment is highly satisfactory. Furthermore, it is pointed out that the main resistance loss of the single-phase flow through the throttle tube is that of the abrupt-enlargement, and the inlet abrupt-contraction resistance should not be neglected at all. Besides, the frictional resistance must be taken into account for the longer throttle tubes. |
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| Keywords: | Throttle tubes Single-Phase Flow Resistance Characteristics |
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