Research progress of high-pressure hydrogen leakage and jet flow

被引：0
|
作者：
Yan X. [1 ]
Dai X. [2 ]
Yu J. [1 ]
Li Y. [1 ]
Han B. [2 ]
Hu J. [2 ]
机构：
[1] School of Chemical Engineering, Dalian University of Technology, Liaoning, Dalian
[2] Dalian Boiler and Pressure Vessel Inspection and Research Institute, Liaoning, Dalian
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 03期
关键词：
computational fluid dynamics (CFD); hydrogen; jet flow; leakage; safety;
D O I：
10.16085/j.issn.1000-6613.2022-1008
中图分类号：
学科分类号：
摘要：
The research progress of high-pressure hydrogen leakage and jet flow was described. The aspects of real state of equation of hydrogen, the structure and model of high pressure under-expanded jet, the hydrogen concentration distribution of jet flow region, and the numerical simulation based on the computational fluid dynamics are concluded, summarized, and reviewed. The research direction in the future is raised. The existing research shows that there are several real gas state equations for high pressure hydrogen. The state equations of Peng-Robinson, Abel-Noble etc. are convenient and accurate. Highly under-expanded jet flow is formed during high pressure hydrogen releases, and Molkov model can be used to predict the characteristics of under-expanded jet flow. The jet flow region is controlled by momentum or the combination of momentum and buoyancy. The concentration of hydrogen in jet flow region is quantitatively related by the dimensionless parameter formed by release diameter, distance from release orifice, and medium densities. The common computational fluid dynamic software such as ANSYS-Fluent, FLACS etc. used in high pressure hydrogen release have been verified to have good precision. The future directions include large scale experiments, irregular release orifices, engineering applications of research results, and high efficient numerical methods. © 2023 Chemical Industry Press. All rights reserved.
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页码：1118 / 1128
页数：10
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