| 微重力两相流相似准则 |
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| 引用本文： | 赵建福,胡文瑞.微重力两相流相似准则[J].工程热物理学报,2003,24(1):131-133. |
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| 作者姓名： | 赵建福 胡文瑞 |
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| 作者单位： | 中国科学院力学研究所国家微重力实验室,北京,100080 |
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| 基金项目： | 国家自然科学基金资助项目(No.10202025)，国科学院“知识创新工程”资助项目(No.KJCX2-L02) |
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| 摘 要： | 本文根据两流体同心环状流线性稳定性分析的结果,对微重力气/液两相流地面模拟实验所应遵循的相似准则 进行了探讨,得到了一个新的重力无关性准则,即Bond数和基于环形区流体表观速度的毛细数之比的绝对值不大于1。 此外,微重力气/液两相流模拟实验还必须满足两个条件,即流量比和Weber数应与所模拟的流动中对应数值相等。
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| 关 键 词： | 微重力 两相流 模拟实验 相似准则 |
| 文章编号： | 0253-231X(2003)01-0131-03 |
| 修稿时间： | 2001年12月15 |
PRINCIPLE OF SIMILARITY FOR MICROGRAVITY TWO-PHASE FLOW |
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| ZHAO Jian-Fu HU Wen-Rui.PRINCIPLE OF SIMILARITY FOR MICROGRAVITY TWO-PHASE FLOW[J].Journal of Engineering Thermophysics,2003,24(1):131-133. |
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| Authors: | ZHAO Jian-Fu HU Wen-Rui |
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| Abstract: | In the present paper, the principle of similarity for two-phase flows at microgravity is studied based on the results of the linear stability analysis of the two-fluid concentric annular flow configuration. A new criterion of gravity-independence, namely the absolute value of the ratio between the Bond number and the capillary number based on the superficial velocity of the phase flowing in the annulus is no more than one, is achieved. It is also pointed out that the flowrate ratio and the Weber number must have the same values as their counterparts in the simulated flow in order to simulate correctly the behavior of two-phase flow at microgravity. |
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| Keywords: | microgravity two-phase flow simulating test principle of similarity |
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