The steady-state flows in drill pipe and in annulus are analyzed and the variations of pressure, gas void fraction, and multiphase-flow density along the well depth are simulated.
举例分析在环空和钻柱内的稳定流动过程中，随井深增加，压力、含气率、多相流体密度等的变化规律；
A method of using metal probe for measuring the void fraction at any point in gas-liquid two-phase flow on Sieve tray is described.
用金属探针法测量塔板上气液两相流中某些点的含气率。
According to different optics-dispersion character, threshold segmentation method is proposed to identify gas from the gas-water flow, which make steadfast base for further calculate void fraction.
根据气泡和水对光的反射特性不同，提出采用阈值法识别图像中的气泡和水，从而为进一步计算掺气浓度打下坚实的基础。
In this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。
The void fraction in downward gas oil two phase flow in vertical tube is measured with the combined method of horizontal downward vertical tube for the two flow regimes(bubbly and slug flow).
采用水平—下降管组合法测量了垂直下降管内油气两相流动在泡状和弹状流下截面含气率的值。
The effects of gas flow rate and rotating speed on the fluid field, local void fraction distribution and bubble size distribution were investigated.
考察了不同通气量和操作转速下气液搅拌槽内流体流动，局部气含率和气泡尺寸的分布规律。
The effects of gas flow rate and rotating speed on the fluid field, local void fraction distribution and bubble size distribution were investigated.
考察了不同通气量和操作转速下气液搅拌槽内流体流动，局部气含率和气泡尺寸的分布规律。
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