MODEL FOR PREDICTION OF CIRCUMFERENTIAL DISTRIBUTION OF FILM THICKNESS IN HORIZONTAL GAS-LIQUID ANNULAR FLOW

LI Weidong; LI Rongxian; WANG Yueshe; ZHOU Fangde

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MODEL FOR PREDICTION OF CIRCUMFERENTIAL DISTRIBUTION OF FILM THICKNESS IN HORIZONTAL GAS-LIQUID ANNULAR FLOW

更新时间：2025-12-10

- MODEL FOR PREDICTION OF CIRCUMFERENTIAL DISTRIBUTION OF FILM THICKNESS IN HORIZONTAL GAS-LIQUID ANNULAR FLOW
- CIESC Journal Issue 3, (2001)
- 作者机构：
  
  1. 清华大学工程力学系
  2. 西安交通大学动力工程多相流国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 March 2001，
  
  Published：25 March 2001
- 稿件说明：
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LI Weidong, LI Rongxian, WANG Yueshe, et al. MODEL FOR PREDICTION OF CIRCUMFERENTIAL DISTRIBUTION OF FILM THICKNESS IN HORIZONTAL GAS-LIQUID ANNULAR FLOW[J]. CIESC Journal, 2001, (3).
DOI：

LI Weidong, LI Rongxian, WANG Yueshe, et al. MODEL FOR PREDICTION OF CIRCUMFERENTIAL DISTRIBUTION OF FILM THICKNESS IN HORIZONTAL GAS-LIQUID ANNULAR FLOW[J]. CIESC Journal, 2001, (3). DOI：

摘要

针对水平环状流液膜厚度沿周向分布的不对称性

用 5组双平行电导探针测量了水平管内气液环状流沿周向的瞬态液膜厚度

得到了平均液膜厚度沿周向的分布规律 .分析了液膜向上输送的机理 .为更为准确地预测液膜厚度

综合考虑了扰动波抽吸作用机理、气体二次流机理及液滴沉降和携带机理 ;通过量级比较和应力平衡的方法

提出了一个预测液膜厚度沿周向分布的理论模型 .数值模拟结果表明预测值与实验测量结果符合较好

Abstract

For annular flow in a horizontal pipe

the gravity force resulted in an asymmetric distribution of the liquid film flowing along the pipe wall. Using five parallel-wire conductance probes

time records were collected on local liquid film thickness at five circumferential positions. The liquid upward transport mechanism is very important for predicting the circumferential liquid film thickness distribution in horizontal gas-liquid annular flow. Taking into consideration the pumping action of disturbance waves

the induced secondary flow in the gas flow

entrainment and deposition of droplets a theoretical model of circumferential distribution of liquid film thickness was developed with stress balance and order analysis method. The filmthickness distribution obtained from the model accorded with the experimental data very well.

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