T型微通道内气液两相流数值模拟

王琳琳; 李国君; 田辉; 叶阳辉

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T型微通道内气液两相流数值模拟

更新时间：2025-07-09

- T型微通道内气液两相流数值模拟
- Numerical Simulation of Gas-Liquid Two-Phase Flow in a T-Junction Micro-Channel
- 西安交通大学学报 2011年45卷第9期页码：65-69
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2011-03-29. 作者简介: 王琳琳(1981-),女,博士生;李国君(联系人),男,教授. 基金项目: 国家自然科学基金资助项目(51076126)
- DOI：
  中图分类号： TQ021.1
- 网络首发：2011-09-10，
  
  纸质出版：2011
- 稿件说明：
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王琳琳, 李国君, 田辉, 等. T型微通道内气液两相流数值模拟[J]. 西安交通大学学报, 2011,45(9):65-69.

Numerical Simulation of Gas-Liquid Two-Phase Flow in a T-Junction Micro-Channel[J]. 2011, 45(9): 65-69.
王琳琳, 李国君, 田辉, 等. T型微通道内气液两相流数值模拟[J]. 西安交通大学学报, 2011,45(9):65-69. DOI：

Numerical Simulation of Gas-Liquid Two-Phase Flow in a T-Junction Micro-Channel[J]. 2011, 45(9): 65-69. DOI：

摘要

采用相场方法

在湿壁面条件下对T型微通道内不可压缩气液两相流动进行了模拟研究.数值模拟中得到微通道内特有气泡——Taylor气泡形成的过程

发现其形成共经历了4个阶段

气泡在形成过程中主要受到挤压力、表面张力、黏性力的作用

分析各阶段这3种力对气泡的作用

得到Taylor气泡形成机理.计算结果表明

挤压力和表面张力在气泡整个形成过程都起作用

表面张力在气泡脱离前达到最小值

黏性力仅在气泡形成前两阶段起作用并在阻塞阶段取得最大值.这些基本规律为有效控制微通道内气泡尺寸和微通道系统设计提供了一定的依据.

Abstract

The numerical simulation was performed to investigate the incompressible gas-liquid two-phase flow in a T-junction micro-channel with wetted walls using a phase field method. The formation process including four stages of a well defined Taylor bubble was achieved. The Taylor bubble is exerted by three forces in formation process

i.e.

extrusion force

surface tension force and shear stress force of the continuous phase

and the formation mechanism of the Taylor bubble was obtained. The numerical results show that both the extrusion force and the surface tension force act in the formation process of the Taylor bubble

and the surface tension force reaches a minimum value before detachment. The shear stress force acts only in the preceding two stages of the formation process

and it has a maximum value in the blocking stage

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Keywords

references

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