泡沫金属亲疏水性对T型小通道气液两相流相分离特性影响研究

李洪伟; 魏国宝; 王亚成; 付东威

doi:10.11949/0438-1157.20190481

您当前的位置：

首页 >

文章列表页 >

泡沫金属亲疏水性对T型小通道气液两相流相分离特性影响研究

流体力学与传递现象 | 更新时间：2020-06-24

- 泡沫金属亲疏水性对T型小通道气液两相流相分离特性影响研究
- Investigation on effect of hydrophilicity and hydrophobicity of metal foam on phase separation characteristics of gas-liquid two-phase flow in T-junction
- 化工学报 2019年70卷第11期页码：4216-4230
- 作者机构：
  
  东北电力大学能源与动力工程学院，吉林省吉林市 132012
- 作者简介：
  
  李洪伟（1982—），男，博士，副教授，lihongwei@neepu.edu.cn
- 基金信息：
  
  吉林省自然科学基金项目(20170101123JC)
- DOI：10.11949/0438-1157.20190481
  中图分类号： TQ 051.5
- 收稿：2019-05-08，
  
  修回：2019-06-17，
  
  纸质出版：2019-11-05
- 稿件说明：
移动端阅览
李洪伟, 魏国宝, 王亚成, 付东威. 泡沫金属亲疏水性对T型小通道气液两相流相分离特性影响研究[J]. 化工学报, 2019, 70(11): 4216-4230

LI Hongwei, WEI Guobao, WANG Yacheng, FU Dongwei. Investigation on effect of hydrophilicity and hydrophobicity of metal foam on phase separation characteristics of gas-liquid two-phase flow in T-junction[J]. CIESC Journal, 2019, 70(11): 4216-4230
李洪伟, 魏国宝, 王亚成, 付东威. 泡沫金属亲疏水性对T型小通道气液两相流相分离特性影响研究[J]. 化工学报, 2019, 70(11): 4216-4230 DOI： 10.11949/0438-1157.20190481.

LI Hongwei, WEI Guobao, WANG Yacheng, FU Dongwei. Investigation on effect of hydrophilicity and hydrophobicity of metal foam on phase separation characteristics of gas-liquid two-phase flow in T-junction[J]. CIESC Journal, 2019, 70(11): 4216-4230 DOI： 10.11949/0438-1157.20190481.

摘要

小通道填充泡沫金属成为近几年强化换热方向的研究热点。以空气和水为工作介质，将PPI为10和20的泡沫金属分别填充到截面为2.5 mm×2.5 mm的T型小通道内，改变泡沫金属的亲疏水性，分别研究弹状流和环状流下气液两相表观流速及亲疏水性对相分离的影响机制。比较亲水、疏水处理及未处理这三种泡沫金属的分离特性发现：无论是弹状流还是环状流，分离效果最好的是亲水处理后的泡沫金属，其次是未经处理的泡沫金属，而进行疏水处理后的分离效果最差，填充泡沫金属的T型通道相分离效果要明显好于未填充的通道。对于亲疏水处理过的T型通道，无论是弹状流还是环状流，T型小通道内侧支管气相采出分率占优，液相采出分率随着液体表观速度的增加而降低，但气相表观速度对液相采出分率影响很小。而泡沫金属PPI的减小会降低气相采出分率，使分配效果更加趋近于均匀分布线。

Abstract

Filling foam metal with small channels has become a research hotspot in the direction of heat transfer in recent years. Use air and water as working medium

the foam metal with PPI of 10 and 20 is filled into a T-shaped small channel with a cross section of 2.5 mm × 2.5 mm respectively. Change the hydrophilicity and hydrophobicity of metal foam

then study the influence mechanism of gas-liquid two-phase superficial velocity and hydrophilicity as well as hydrophobicity on phase separation under the action of slug flow and annular flow. The separation characteristics of three foamed metals treated with hydrophilic treatment

hydrophobic treatment and untreated were compared: whether it is a slug flow or an annular flow

the best separation effect is the hydrophilic treated foam metal

then the untreated foam metal

and the hydrophobic treatment foam metal get the worst effect

phase separation effect of T-channels filled with metal foam is significantly better than unfilled channels. For hydrophilic treated and hydrophobic treated T-channels

whether it is a slug flow or an annular flow

the gas phase recovery fraction of the inner branch of the T-shaped small channel is dominant

the liquid phase recovery fraction decreases with the increase of superficial velocity of the liquid

but the superficial velocity of gas phase has little effect on the liquid fraction. However

the reduction of the foam metal PPI will reduce the gas phase recovery fraction

which makes the distribution effect closer to the uniform distribution line.

关键词

Keywords

references

Zhu Y , Hu H , Sun S , et al . Flow boiling of refrigerant in horizontal metal-foam filled tubes(Ⅰ): Two-phase flow pattern visualization [J]. International Journal of Heat & Mass Transfer , 2015 , 91 : 446 - 453 .

Zhu Y , Hu H , Sun S , et al . Heat transfer measurements and correlation of refrigerant flow boiling in tube filled with copper foam [J]. International Journal of Refrigeration , 2014 , 38 ( 38 ): 215 - 226 .

Zhu Y , Hu H , Ding G , et al . Influence of metal foam on heat transfer characteristics of refrigerant-oil mixture flow boiling inside circular tubes [J]. Applied Thermal Engineering , 2013 , 50 ( 1 ): 1246 - 1256 .

Hu H , Zhu Y , Peng H , et al . Influence of tube diameter on heat transfer characteristics of refrigerant-oil mixture flow boiling in metal-foam filled tubes [J]. International Journal of Refrigeration , 2014 , 41 ( 5 ): 121 - 136 .

Mak C Y , Omebere-Iyari N K , Azzopardi B J . The split of vertical two-phase flow at a small diameter T-junction [J]. Chemical Engineering Science , 2006 , 61 ( 19 ): 6261 - 6272 .

Yang L M , Azzopardi B J . Phase split of liquid-liquid two-phase flow at a horizontal T-junction [J]. International Journal of Multiphase Flow , 2007 , 33 ( 2 ): 207 - 216 .

Azzopardi B J . Measurements and observations of the split of annular flow at a vertical T-junction [J]. International Journal of Multiphase Flow , 1988 , 14 ( 6 ): 701 - 710 .

Das G , Das P K , Azzopardi B J . The split of stratified gas-liquid flow at a small diameter T-junction [J]. International Journal of Multiphase Flow , 2005 , 31 : 514 - 528 .

Van Gorp , Soliman C A , Sims H M . The effect of pressure on two-phase flow dividing at a reduced tee junction [J]. International Journal of Multiphase Flow , 2001 , 27 ( 3 ): 571 - 576 .

He K , Wang S F , Huang J Z . The effect of flow pattern on split of two-phase flow through a micro-T-junction [J]. Heat Mass Transfer , 2011 , 54 : 3587 - 3593 ．

He K , Wang S F , Huang J Z . The effect of surface tension on phase distribution of two-phase flow in a micro-T-junction [J]. Chemical Engineering Science , 2011 , 66 : 3962 - 3968 .

Li H W , Li J W , Zhou Y L , et al . Phase split characteristics of slug and annular flow in a dividing micro-T-junction [J]. Experimental Thermal and Fluid Science , 2017 , 80 : 244 - 258 .

Azzi A , Al-Attiyah A , Qi L , et al . Gas-liquid two-phase flow division at a micro-T-junction [J]. Chemical Engineering Science , 2010 , 65 ( 13 ): 3986 - 3993 .

Issa R I , Oliveira P J . Numerical prediction of phase separation in two-phase flow through T-junctions [J]. Computers & Fluids , 1994 , 23 ( 2 ): 347 - 372 .

Heary V S , Sotiropoulos F . Numerical investigation of laminar flows through 90-degree diversions of rectangular cross-section [J]. Computers & Fluids , 1996 , 25 ( 2 ): 95 - 118 .

Adechy D , Issa R I . Modelling of annular flow through pipes and T-junctions [J]. Computers & Fluids , 2004 , 33 ( 2 ): 289 - 313 .

梁法春 , 王栋 , 林宗虎 . 新型三通分配器中环状流相分离预测 [J]. 工程热物理学报 , 2007 , 28 ( 1 ): 71 - 73 .

Liang F C , Wang D , Lin Z H . Prediction of annular flow phase separation in a new T-junction type distributor [J]. Journal of Engineering Thermophysics , 2007 , 28 ( 1 ): 71 - 73 .

钱勇 , 徐济鋆 . 气液两相流水平管系结点处影响区相分离模型分析 [J]. 核科学与工程 , 1997 , 17 ( 4 ): 293 - 301 .

Qian Y , Xu J J . Phase separation model analysis of gas-liquid two-phase flow in the zones of influence in horizontal pipeline system [J]. Chinese Journal of Nuclear Science and Engineering , 1997 , 17 ( 4 ): 293 - 301 .

Qian D , Lawal A . Numerical study on gas and liquid slugs for Taylor flow in a T-junction microchannel [J]. Chemical Engineering Science , 2006 , 23 ( 4 ): 7609 - 7625 .

周云龙 , 刘博 , 刘袖 , 等 . T型微通道内两相流流型及相分离特性 [J]. 化学反应工程与工艺 , 2012 , ( 4 ): 300 - 305 .

Zhou Y L , Liu B , Liu X , et al . Flow patterns and phase splitting of two-phase flow in a micro-T-junction [J]. Chemical Reaction Engineering and Technology , 2012 , ( 4 ): 300 - 305 .

Kawaji M , Koji M . Effects of inlet geometry on gas-liquid two-phase flow in microchannels [C]// ASME Spring National Meeting , Conference Proceedings . 2005 : 2411 - 2419 .

Triplett K A , Ghiaasiaan S M , Abdel-Khalik S I , et al . Gas-liquid two-phase flow in microchannels (Ⅰ): Two-phase flow patterns [J]. Multiphase Flow , 1999 , 25 : 377 - 394 .

Taitel Y , Dukler A E . A model for predicting flow regime transitions in horizontal and near-horizontal gas-liquid flow [J]. ASME Journal , 1976 , 22 : 47 - 55 .

Seeger W , Reimann J , Muller U . Two-phase flow in a T-junction with a horizontal inlet: phase separation [J]. International Journal of Multiphase Flow , 1986 , 12 ( 4 ): 575 - 585 .

Tae S J , Cho K . Two-phase split of refrigerants at a T-junction [J]. International Journal of Refrigeration , 2006 , 29 ( 7 ): 1128 - 1137 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

稠油管道水润滑减阻及压降预测模型修正

脉动条件下旋流场内气液两相流流型及其转变机理

基于液膜流型的双入口管柱式气液分离器性能研究

正弦型微通道内液-液两相流型及流动特性实验研究

台阶式并行微通道内液液两相流流型及其转变机理