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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

NUMERICAL SIMULATION OF BUBBLE GROWTH IN A RECTANGULAR MICROCHANNEL

Le Lei
Key Lab of Thermo-Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xianning west Rd. Xi'an 710049,Shaanxi, China

Kong Ling
Key Lab of Thermo-Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xianning west Rd. Xi'an 710049,Shaanxi, China

Wen-Quan Tao
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xian Jiaotong University, Xian 710049, China

DOI: 10.1615/IHTC16.bae.022172
pages 671-679


キーワード: Microchannel, Bubble growth, VOSET, Contact angle, Inlet liquid velocity

要約

In this paper, the bubble growth and heat transfer in a rectangular mcirochannel were studied. The coupled level set and VOF method-VOSET was used to capture the liquid-vapor interface, and the velocity and pressure fields was solved by the projection method. The effect of the contact angle and inlet liquid velocity on the bubble growth and wall heat transfer were systematically studied. It is found that the average heat flux increas with the increase of the inlet liquid velocity, while decreas with the increase of the contact angle.

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