Numerical study of bubble growth and boiling heat transfer on a microfinned surface

被引：14

作者：

Lee, Woorim ^{[1
]}

Son, Gihun ^{[1
]}

Yoon, Han Young ^{[2
]}

机构：

[1] Sogang Univ, Dept Mech Engn, Seoul 121742, South Korea

[2] Korea Atom Energy Res Inst, Taejon, South Korea

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2012年 / 39卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Boiling enhancement; Level-set method; Microfinned surface; Numerical simulation; SIMULATION; VAPOR;

D O I：

10.1016/j.icheatmasstransfer.2011.09.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The bubble growth and boiling heat transfer on a microfinned surface are studied numerically by solving the conservation equations of mass, momentum and energy. The bubble shape is tracked by a sharp-interface level-set method, which is modified to include the effect of phase change and to treat the contact angle and microlayer heat flux on an immersed solid surface. The present computation demonstrates that the microfinned surface enhances boiling heat transfer significantly compared to a plain surface. The effects of fin spacing and height on the bubble growth and heat transfer are investigated to find the optimal conditions for boiling enhancement. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：52 / 57

页数：6

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