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Journal of Dispersion Science and Technology Volume 41, 2020 - Issue 7
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Original Articles

Microbubble characteristic in a co-flowing liquid in microfluidic chip

Lixia SunCollege of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun, Jilin, China; ;College of Mechanical Engineering, Beihua University, Jilin, Jilin, China; View further author information
,
Mingxu FanCollege of Mechanical Engineering, Beihua University, Jilin, Jilin, China; View further author information
,
Huadong YuCollege of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun, Jilin, China; Correspondence[email protected]
View further author information
,
Peng LiCollege of Mechanical Engineering, Beihua University, Jilin, Jilin, China; Correspondence[email protected]
View further author information
,
Jinkai XuCollege of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun, Jilin, China; View further author information
,
Hongwei QinSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, ChinaView further author information
&
Shengyuan JiangSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, ChinaView further author information
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Pages 992-1001 | Received 14 Jan 2019, Accepted 28 Apr 2019, Published online: 22 May 2019
 
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Abstract

An experimental method for the formation characteristics of co-flowing focusing microbubbles based on polydimethylsiloxane (PDMS) microfluidic chip is introduced. An experimental system was set up to investigate the effects of liquid flow rate, gas pressure and gas channel width on bubble detachment volume and formation time. Based on the assumption of ellipsoid theory, the theoretical model for volume prediction of co-flowing focusing microbubbles is established. The numerical solution of the model is obtained by the fourth-order Runge-Kutta method. The results show that the prediction results of theoretical model correlate well with the experimental data.

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Additional information

Funding

This work was supported by Science and Technology Department of Jilin Province [grant number 20190302039GX].

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