张博

(教授)

 博士生导师  硕士生导师
学位:博士
性别:男
毕业院校:大连理工大学
所在单位:能源与动力学院
电子邮箱:zhangbo@dlut.edu.cn

论文成果

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Numerical and experimental study on parameters distribution inside a two-phase ejector

发表时间:2019-03-09 点击次数:

论文名称:Numerical and experimental study on parameters distribution inside a two-phase ejector
论文类型:期刊论文
发表刊物:HEAT AND MASS TRANSFER
收录刊物:SCIE、EI、Scopus
卷号:49
期号:11
页面范围:1525-1533
ISSN号:0947-7411
摘要:The two-phase flow process in an ejector was numerically and experimentally studied using R141b as a working fluid. A modified one-dimensional gas-liquid ejector model was proposed to remedy the defect in the traditional one. Gas-liquid boundary layer regions were discussed and used to close the model. Mac Cormack method is used to discrete controlling equations of gas-liquid two-phase flow in the ejector. The radial distribution of velocity and temperature, the variation of void fraction, the axial velocity variation and the influence of primary steam pressure on the mixing process were predicted with the numerical model. An experimental rig was set up to validate the model by comparing the experimental pressure distribution in the ejector with the calculating one.
发表时间:2013-11-01