Numerical study on a sliding bubble during nucleate boiling

被引：0
作者：
Gihun Son
机构：
[1] Sogang University,Department of Mechanical Engineering
来源：
KSME International Journal | 2001年 / 15卷
关键词：
Level Set Method; Sliding Bubble; Nucleate Boiling; Contact Angle;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A numerical method for simulating bubble motion during nucleate boiling is presented. The vapor-liquid interface is captured by a level set method which can easily handle breaking and merging of the interface and can calculate an interfacial curvature more accurately than the VOF method using a step function. The level set method is modified to include the effects of phase change at the interface and contact angle at the wall as well to achieve mass conservation during the whole calculation procedure. Also, a simplified model to predict the heat flux in a thin liquid microlayer is developed. The method is applied for simulation of a sliding bubble on a vertical surface to further understand the physics of partial nucleate boiling. Based on the computed results, the effects of contact angle, wall superheat and phase caange on a sliding bubble are quantified.
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页码：931 / 940
页数：9
相关论文
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