水力学聚焦微通道中气液两相流动的数值模拟

doi:10.11949/j.issn.0438-1157.20150893

化工学报 ›› 2015, Vol. 66 ›› Issue (9): 3398-3404.DOI: 10.11949/j.issn.0438-1157.20150893

水力学聚焦微通道中气液两相流动的数值模拟

吕建华, 李品, 高梦璠, 殷明海

河北工业大学化工学院, 天津 300130

收稿日期:2015-06-10 修回日期:2015-06-24 出版日期:2015-09-05 发布日期:2015-09-05
通讯作者: 李品
基金资助:
河北省自然科学基金项目(B201402251)。

Numerical simulation of gas-liquid two-phase flow in hydrodynamically focused microchannels

LÜ Jianhua, LI Pin, GAO Mengfan, YIN Minghai

School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China

Received:2015-06-10 Revised:2015-06-24 Online:2015-09-05 Published:2015-09-05
Supported by:
supported by the Natural Science Foundation of Hebei Province (B201402251).

摘要/Abstract

摘要：

采用计算流体力学方法,考察了水力学聚焦微通道中气、液两相的流动状态。气、液两相在微通道中呈膜状流动,成膜过程可划分为3个阶段,液相表面压力、黏性力和表面张力在该过程中不断变化。考察了两相入口压强对两相流量和膜厚的影响,模拟结果显示:保持两相压强比值不变,同时改变两相压强,影响不显著;改变两相压强比值,影响显著。

关键词: 计算流体力学, 水力学聚焦, 两相流, 微通道

Abstract:

The gas-liquid two-phase flow in the hydrodynamically focused microchannels was investigated via computational fluid dynamics (CFD) method. Film was formed in the micro-channels and the film formation process included three stages. Surface pressure, shear stress force and surface tension force were changed during the film formation process. The effects of two-phase pressure change on the two-phase flux and film thickness were investigated. The results of numerical simulation showed that the pressure changing had little influence with constant two-phase pressure ratio at 1, while changing the ratio showed the significant influence.

Key words: CFD, hydrodynamically focused, two-phase flow, microchannels

中图分类号:

TQ021.1

吕建华, 李品, 高梦璠, 殷明海. 水力学聚焦微通道中气液两相流动的数值模拟[J]. 化工学报, 2015, 66(9): 3398-3404.

LÜ Jianhua, LI Pin, GAO Mengfan, YIN Minghai. Numerical simulation of gas-liquid two-phase flow in hydrodynamically focused microchannels[J]. CIESC Journal, 2015, 66(9): 3398-3404.

参考文献 23

[1]	Chen Guangwen(陈光文), Zhao Yuchao(赵玉潮), Dong Zhengya(董正亚), Cao Haishan(曹海山), Yuan Quan(袁权). Transport phenomena in micro-chemical engineering [J]. CIESC Journal(化工学报), 2013, 64(1): 63-75.
[2]	Triplett K A, Ghiaasiaan S M, Abdel-Khalik S I, Sadowski D L. Gas-liquid two-phase flow in microchannels(Ⅰ): Two-phase flow patterns [J]. Int. J. Multiphase Flow, 1999, 25(3): 377-394.
[3]	Hou Jingxin(侯璟鑫), Qian Gang(钱刚), Zhou Xinggui(周兴贵). Effects of gas inlet angle and cross-section aspect ratio on Taylor bubble behavior in microchannels [J]. CIESC Journal(化工学报), 2013, 64(6): 1976-1982.
[4]	Garstecki P, Fuerstman M J, Stone H A, Whitesides G M. Formation of droplets and bubbles in microfluidic T-junction scaling and mechanism of bresak-up [J]. Lab Chip, 2006, 6(3): 437-446.
[5]	Abate A R, Mary P, van Steijn V, Weitz D A. Experimental validation of plugging during drop formation in a T-junction [J]. Lab Chip, 2012, 12(8): 1516-1521.
[6]	Dang Minhui(党敏辉), Ren Mingyue(任明月), Chen Guangwen(陈光文). Effect of microchannel inlet configuration on Taylor bubble formation in microreactors [J]. CIESC Journal(化工学报), 2014, 65(3): 806-812.
[7]	Tatineni M, Zhong X. Numerical study of two-phase flows in microchannels using the level set method, AIAA-2004-0929//42nd AIAA Aerospace Sciences Meeting and Exhibit[C]. Reno, Nevada, 2004.
[8]	Dong Hefei(董贺飞), Zhang Deliang(张德良), Zhao Yuchao(赵玉潮), Chen Guangwen(陈光文), Yuan Quan(袁权). Numerical simulation of immiscible two-phase flow in T-shaped microchannel [J]. Journal of Chemical Industry and Engineering(China)(化工学报), 2008, 59(8): 1950-1957.
[9]	Deng Jin(邓金), Zheng Xiaobin(郑晓斌), Wu Jizhou(吴纪周), Chen Wen(陈文), Liu Xiong(刘雄), Dong Lichun(董立春), Li Junhong(李俊宏), Xu Yuting(徐玉婷). CFD simulation of droplet formation in microfluidic T-junction [J]. Chemical Engineering, 2012, 40(11): 39-43.
[10]	Cong Zhenxia(丛振霞), Zhu Chunying(朱春英), Fu Taotao(付涛涛), Ma Youguang(马友光). Bubble breakup and distribution in asymmetric Y-bifurcating microchannels [J]. CIESC Journal(化工学报), 2014, 65(1): 93-99.
[11]	Qian D Y, Lawal A. Numerical study on gas and liquid slugs for Taylor flow in a T-junction microchannel [J]. Chemical Engineering Science, 2006, 61(23): 7609-7625.
[12]	Zhao Y, Hemminger O, Fan L S. Experimental and lattice Boltzmann simulation of two-phase gas-liquid flows in microchannels [J]. Chemical Engineering Science, 2007, 62(24): 7172-7183.
[13]	Gañán-Calvo A M, Gordillo J M. Perfectly monodisperse microbubbling by capillary flow focusing [J]. Physical Review Letters, 2001, 87: 274501.
[14]	Garstecki P, Gitlin I, DiLuzio W, Whitesides G M, Kumacheva E, Stone H A. Formation of monodisperse bubbles in a microfluidic flow-focusing device [J]. Applied Physics Letters, 2004, 85: 2649-2651.
[15]	Garstecki P, Stone H A, Whitesides G M. Mechanism for flow-rate controlled breakup in confined geometries: a route to monodisperse emulsions [J]. Physical Review Letters, 2005, 94: 164501.
[16]	Anna S L, Bontoux N, Stone H A. Formation of dispersions using "flow focusing" in microchannels [J]. Applied Physics Letters, 2003, 82: 364-366.
[17]	Knight J B, Vishwanath A, Brody J P, Austin R H. Hydrodynamic focusing on a silicon chip: mixing nanoliters in microseconds [J]. Physical Review Letters, 1998, 80(17): 3863-3866.
[18]	Taha T, Cui Z F. CFD modelling of slug flow inside square capillaries [J]. Chemical Engineering Science, 2006, 61 (2): 665-675.
[19]	Hazel A L, Hell M. The steady propagation of a semi-infinite bubble into a tube of elliptical or rectangular cross-section [J]. J. Fluid Mech., 2002, 470: 91-114.
[20]	Edvinsson R K, Irandoust S. Finite-element analysis of taylor flow [J]. AIChE J., 1996, 42(7): 1816-1823.
[21]	Ehrfeld W, Hessel V, Löwe H. Microreactors: New Technology for Modern Chemistry[M]. Beijing: Chemical Industry Press, 2004: 70.
[22]	Brackbill J U, Kothe D B, Zemach C. A continuum method for modeling surface tension [J]. Journal of Computational Physics, 2000, 162(2): 301-337.
[23]	Wang Linlin, Li Guojun, Tian Hui, Ye Yanghui. Numerical simulation of gas-liquid two-phase flow in a T-junction micro-channel [J]. Journal of Xi'an Jiaotong University, 2011, 45(9): 65-69.

水力学聚焦微通道中气液两相流动的数值模拟

Numerical simulation of gas-liquid two-phase flow in hydrodynamically focused microchannels

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 23

相关文章 15

编辑推荐

Metrics

本文评价

[1]	周绍华, 詹飞龙, 丁国良, 张浩, 邵艳坡, 刘艳涛, 郜哲明. 短管节流阀内流动噪声的实验研究及降噪措施[J]. 化工学报, 2023, 74(S1): 113-121.
[2]	江河, 袁俊飞, 王林, 邢谷雨. 均流腔结构对微细通道内相变流动特性影响的实验研究[J]. 化工学报, 2023, 74(S1): 235-244.
[3]	张思雨, 殷勇高, 贾鹏琦, 叶威. 双U型地埋管群跨季节蓄热特性研究[J]. 化工学报, 2023, 74(S1): 295-301.
[4]	肖明堃, 杨光, 黄永华, 吴静怡. 浸没孔液氧气泡动力学数值研究[J]. 化工学报, 2023, 74(S1): 87-95.
[5]	温凯杰, 郭力, 夏诏杰, 陈建华. 一种耦合CFD与深度学习的气固快速模拟方法[J]. 化工学报, 2023, 74(9): 3775-3785.
[6]	王玉兵, 李杰, 詹宏波, 朱光亚, 张大林. R134a在菱形离散肋微小通道内的流动沸腾换热实验研究[J]. 化工学报, 2023, 74(9): 3797-3806.
[7]	何松, 刘乔迈, 谢广烁, 王斯民, 肖娟. 高浓度水煤浆管道气膜减阻两相流模拟及代理辅助优化[J]. 化工学报, 2023, 74(9): 3766-3774.
[8]	袁佳琦, 刘政, 黄锐, 张乐福, 贺登辉. 泡状入流条件下旋流泵能量转换特性研究[J]. 化工学报, 2023, 74(9): 3807-3820.
[9]	邢雷, 苗春雨, 蒋明虎, 赵立新, 李新亚. 井下微型气液旋流分离器优化设计与性能分析[J]. 化工学报, 2023, 74(8): 3394-3406.
[10]	刘文竹, 云和明, 王宝雪, 胡明哲, 仲崇龙. 基于场协同和耗散的微通道拓扑优化研究[J]. 化工学报, 2023, 74(8): 3329-3341.
[11]	岳林静, 廖艺涵, 薛源, 李雪洁, 李玉星, 刘翠伟. 凹坑缺陷对厚孔板喉部空化流动特性影响研究[J]. 化工学报, 2023, 74(8): 3292-3308.
[12]	高燕, 伍鹏, 尚超, 胡泽君, 陈晓东. 基于双流体喷嘴的磁性琼脂糖微球的制备及其蛋白吸附性能探究[J]. 化工学报, 2023, 74(8): 3457-3471.
[13]	汪林正, 陆俞冰, 张睿智, 罗永浩. 基于分子动力学模拟的VOCs热氧化特性分析[J]. 化工学报, 2023, 74(8): 3242-3255.
[14]	郭雨莹, 敬加强, 黄婉妮, 张平, 孙杰, 朱宇, 冯君炫, 陆洪江. 稠油管道水润滑减阻及压降预测模型修正[J]. 化工学报, 2023, 74(7): 2898-2907.
[15]	高金明, 郭玉娇, 鄂承林, 卢春喜. 一种封闭罩内顺流多旋臂气液分离器的分离特性研究[J]. 化工学报, 2023, 74(7): 2957-2966.