Numerical Simulation of Droplets Impacting on a Liquid Film with a Vapor Bubble Growing

A numerical model of multiphase flow is developed to investigate the relative contributions of droplet parameters to spray cooling heat transfer. The 2-D model takes into account the effects of surface tension, gravity and viscosity. The heat and mass exchanges of free surface are defined to study v...

Full description

Saved in:
Bibliographic Details
Published inChinese physics letters Vol. 31; no. 1; pp. 106 - 109
Main Author 侯燕 陶毓伽 淮秀兰
Format Journal Article
LanguageEnglish
Published 2014
Subjects
2-D模型
Bubbles
Droplets
Gravitation
Heat transfer
Liquid films
Mathematical models
Multiphase
Spray cooling
传热机理
多相流动
数值模拟
气泡生长
液滴
液膜
蒸汽
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/1/014701

Cover

More Information
Summary:A numerical model of multiphase flow is developed to investigate the relative contributions of droplet parameters to spray cooling heat transfer. The 2-D model takes into account the effects of surface tension, gravity and viscosity. The heat and mass exchanges of free surface are defined to study vapor bubble behavior in liquid films. The multiphase flow and heat transfer are discussed for the three droplet parameters： initial droplet position, initial droplet temperature, and droplet impact frequency. The heat transfer mechanisms of the three cases are discussed in detail.
Bibliography:11-1959/O4
A numerical model of multiphase flow is developed to investigate the relative contributions of droplet parameters to spray cooling heat transfer. The 2-D model takes into account the effects of surface tension, gravity and viscosity. The heat and mass exchanges of free surface are defined to study vapor bubble behavior in liquid films. The multiphase flow and heat transfer are discussed for the three droplet parameters： initial droplet position, initial droplet temperature, and droplet impact frequency. The heat transfer mechanisms of the three cases are discussed in detail.
HOU Yan, TAO Yu-Jia, HUAI Xiu-Lan（1 fnstitute of Engineering Thermophysics, University of Chinese Academy of Sciences, Beijing 100190 2 University of Chinese Academy of Sciences, Beijing 100049）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/1/014701