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

HUO Xiaoqian; XU Ying; WANG Jinghan; ZHANG Tao; MAIMAITI Aikebaier; WANG Xigang

doi:10.11949/0438-1157.20200124

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

Fluid dynamics and transport phenomena | 更新时间：2026-07-24

- Study on pressure drop characteristics of gas-liquid swirl annular flow
- CIESC Journal Vol. 71, Issue 12, Pages: 5506-5514(2020)
- 作者机构：
  
  1.天津大学电气自动化与信息工程学院，天津 300072
  2.天津市过程检测与控制重点实验室，天津 300072
  3.天津市天大泰和自控仪表技术有限公司，天津 300072
  4.天津市计量监督检测科学研究院，天津 300192
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20200124
  CLC： O 359⁺.1
- Received：10 February 2020，
  
  Revised：2020-09-26，
  
  Online First：17 December 2020，
  
  Published：05 December 2020
- 稿件说明：
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霍小倩, 徐英, 汪晶晗, 张涛, 艾克拜尔·麦麦提, 王锡钢. 气液螺旋环状流压降特性研究[J]. 化工学报, 2020, 71(12): 5506-5514

HUO Xiaoqian, XU Ying, WANG Jinghan, ZHANG Tao, MAIMAITI Aikebaier, WANG Xigang. Study on pressure drop characteristics of gas-liquid swirl annular flow[J]. CIESC Journal, 2020, 71(12): 5506-5514
霍小倩, 徐英, 汪晶晗, 张涛, 艾克拜尔·麦麦提, 王锡钢. 气液螺旋环状流压降特性研究[J]. 化工学报, 2020, 71(12): 5506-5514 DOI： 10.11949/0438-1157.20200124.

HUO Xiaoqian, XU Ying, WANG Jinghan, ZHANG Tao, MAIMAITI Aikebaier, WANG Xigang. Study on pressure drop characteristics of gas-liquid swirl annular flow[J]. CIESC Journal, 2020, 71(12): 5506-5514 DOI： 10.11949/0438-1157.20200124.

摘要

考虑旋流衰减的影响，对气液螺旋环状流的压降特性进行研究并推导出了螺旋环状流压降预测模型。定义压降旋-直比系数为气液两相螺旋环状流和气液两相直流的压降之比，以此来表征旋流衰减对压降的影响。基于量纲分析的方法对压降旋-直比系数进行分析，推导出其表达式，压降旋-直比系数依赖于Lockhart-Martinelli 参数和气相Froude数变化。最终，得出了气液两相螺旋环状流的压降预测模型。在50 mm内径的水平管内对螺旋环状流的压降特性进行了实验研究，其中气相表观流速变化范围为10~16 m/s，体积含液率（LVF）变化范围为0.6%~4.8%。通过与实验数据进行对比，压降预测模型的相对误差在±15%以内，为工程应用提供了参考。

Abstract

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.

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