详细信息

液体射流在同向气流中的破裂  ( EI收录)  

Breakup of a liquid jet in co-flowing air streams

文献类型:期刊文献

中文题名:液体射流在同向气流中的破裂

英文题名:Breakup of a liquid jet in co-flowing air streams

作者:曹显奎[1];孙志刚[1];许建良[1];李伟锋[1];刘海峰[1];于遵宏[1]

机构:[1]华东理工大学资源与环境工程学院,上海200237

年份:2007

卷号:35

期号:5

起止页码:29

中文期刊名:化学工程

外文期刊名:Chemical Engineering(China)

收录:CSTPCD;;EI(收录号:20072510664008);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

基金:国家重点基础研究发展规划项目(2004CB217703);国家高技术研究发展计划(2003AA521021)

语种:中文

中文关键词:破裂;破裂模式;破裂长度;未扰动长度

外文关键词:breakup; disintegration modes; breakup length; undisturbed length

摘要:液体射流的破裂是雾化的一个重要组成部分,为深入理解该破裂过程,文中使用数码相机对液体射流在同向气流作用下的破裂过程进行了实验研究。通过观察和分析发现,随着Weber数的增大,破裂过程可依次划分成3种模式:轴对称、非轴对称和细丝模式,其中非对称模式下还包含一个特殊的袋状或者膜状破裂子模式,并分别给出了各个模式下破裂长度和未扰动长度对与Weber数、Reynolds数的关联式。
The breakup of liquid jet is a crucial part of atomization. For a deep understanding on atomization, experiments were performed on the breakup of a round liquid jet in co-flowing air streams. From the observation and analysis, it shows that with the increase of gas Weber number, the breakup process can be successively classified into three main categories : axisymmetric, non-axisymmetric and fibers breakup mode, and a bag-like or membranetype breakup sub-mode was observed during non-axiymmetric breakup mode. Correlations of breakup length and undisturbed length were derived as a function of the gas Weber number and liquid Reynolds number, resoectively.

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