Study on pressure drop characteristics of gas-liquid swirl annular flow

被引：0
|
作者：
Huo, Xiaoqian [1 ,2 ]
Xu, Ying [1 ,2 ]
Wang, Jinghan [1 ,2 ]
Zhang, Tao [1 ,2 ]
Aikebaier, Maimaiti [3 ]
Wang, Xigang [4 ]
机构：
[1] School of Electrical and Information Engineering, Tianjin University, Tianjin,300072, China
[2] Key Laboratory for Process Measurement and Control, Tianjin,300072, China
[3] Tianjin T.J.UNI. Taihe Automation Control & Instrument Co., Ltd., Tianjin,300072, China
[4] Tianjin Institute of Metrological Supervision and Testing, Tianjin,300192, China
来源：
Huagong Xuebao/CIESC Journal | 2020年 / 71卷 / 12期
关键词：
Pressure drop;
D O I：
10.11949/0438-1157.20200124
中图分类号：
学科分类号：
摘要：
Considering the influence of swirl attenuation, the pressure drop characteristics of gas-liquid spiral annular flow are studied, and the pressure drop prediction model of spiral annular flow is deduced. The swirl-straight ratio of pressure drop is defined as the ratio of pressure drop of swirl flow to straight flow, used to characterize the effect of swirl decay on pressure drop. The expression of swirl-straight ratio of pressure drop is derived by the method of dimensional analysis, and it has a strongly dependence on Lockhart-Martinelli coefficient and gas phase Froude number. Finally, the prediction model of pressure drop for gas-liquid swirl annular flow is obtained. The pressure drop characteristics of the swirl annular flow are experimentally studied in a horizontal tube with an inner diameter of 50 mm. The range of the gas superficial velocity is 10-16 m/s and the range of the liquid volume fraction (LVF) is 0.6%-4.8%. Through comparison with experimental data, the relative error of the pressure drop prediction model is within ±15%, which provides a method reference for engineering applications. © 2020, Editorial Board of CIESC Journal. All right reserved.
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收藏
页码：5506 / 5514
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