解茂昭

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:北京航空学院

学位:硕士

所在单位:能源与动力学院

电子邮箱:xmz@dlut.edu.cn

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超临界射流模型的构建及验证

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发表时间:2022-10-07

发表刊物:上海交通大学学报

卷号:52

期号:9

页面范围:1058-1064

ISSN号:1008-7095

摘要:Supercritical injection and combustion processes are prevalent in liquid rockets and hypersonic flight equipment. Under the critical state, the thermophysical and transport properties of the fluid are very sensitive to pressure and temperature, and the ideal state equation is no longer applicable. Based on the OpenFOAM open source program and by using the classical pressure implicit split operator (PISO) algorithm to couple the velocity and pressure, this paper presents a new computational fluid dynamics (CFD) solver for supercritical jet, which incorporates the Soave-Redlich-Kwong (SRK) real-fluid equation of state and takes into account the effect of the isothermal compression coefficient on the pressure equation. And the numerical validity of the model is verified against experiments of a shock tube and supercritical jet. The results show that the new model possesses good prediction accuracy and reproduces the experimental results well. The model can be further extended for applications to transcritical and supercritical spray and mixing under internal combustion engine conditions. © 2018, Shanghai Jiao Tong University Press. All right reserved.

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