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首页> 外文期刊>International Journal of Multiphase Flow >The influence of fluid properties and inlet geometry on flooding in vertical and inclined tubes
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The influence of fluid properties and inlet geometry on flooding in vertical and inclined tubes

机译：流体特性和入口几何形状对垂直管和倾斜管中的驱油的影响

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摘要

Flooding during adiabatic two-phase countercurrent flow in a vertical and 60° inclined (to the horizontal) 30 mm i.d. tube is investigated. Experiments are conducted with air, argon, helium, hydrogen, water, methanol, isopropanol and aqueous methanol solutions. An improved flooding correlation is proposed which accurately correlates the data. In the past, a number of proposed dimensionless groups often only succeeded in correlating their own data. The present correlation excellently correlates the data of three previous investigations. The findings clearly show that some flooding data had been misinterpreted in the past. The fluid densities have the strongest effect on the flooding gas velocity. The effect of the liquid viscosity is relatively stronger than that of the surface tension. Flooding is independent of the gas viscosity.
机译：绝热两相逆流过程中的溢流，垂直和60°倾斜（相对于水平）30 mm i.d.管被调查。实验是在空气，氩气，氦气，氢气，水，甲醇，异丙醇和甲醇水溶液下进行的。提出了一种改进的泛洪相关性，可以精确地关联数据。过去，许多提议的无量纲小组通常仅成功地关联了他们自己的数据。目前的相关性很好地关联了之前三个研究的数据。调查结果清楚地表明，过去曾对某些洪水数据进行了错误的解释。流体密度对驱油速度具有最强的影响。液体粘度的影响相对强于表面张力。驱油与气体粘度无关。

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