Calibration and sensitivity analysis of under-expanded hydrogen jet CFD simulation based on surrogate modeling

IF 3.6 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Xiaoyang Luan , Bin Zhang , Michael Short , Tao Chen
{"title":"Calibration and sensitivity analysis of under-expanded hydrogen jet CFD simulation based on surrogate modeling","authors":"Xiaoyang Luan ,&nbsp;Bin Zhang ,&nbsp;Michael Short ,&nbsp;Tao Chen","doi":"10.1016/j.jlp.2024.105535","DOIUrl":null,"url":null,"abstract":"<div><div>Accidental leaks from high-pressure hydrogen storage containers can lead to under-expanded jet flows, posing risks of fires or explosions. Practitioners traditionally harness Computational Fluid Dynamics (CFD) software to assess the hazards of such hydrogen releases. The Reynolds-Averaged Navier-Stokes (RANS) equations, often chosen by their efficiency and reliability and significantly influences CFD results. However, the closure coefficients within RANS harbor uncertainties. These coefficients, often defaulting to values ascertained from foundational flow experiments, may not generalize across diverse flow contexts, especially for intricate flow challenges like under-expanded hydrogen jets with high velocities and pressures. This study employs surrogate modelling to recalibrate these closure coefficients for CFD simulations of under-expanded hydrogen jets. Sensitivity analysis with Sobol indices quantifies their impact. The recalibration resulted in significantly improved accuracy, compared to their default values, of the CFD against literature reported experimental data. The results can enhance safety assessments and measures for hydrogen applications.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105535"},"PeriodicalIF":3.6000,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Loss Prevention in The Process Industries","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0950423024002936","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Accidental leaks from high-pressure hydrogen storage containers can lead to under-expanded jet flows, posing risks of fires or explosions. Practitioners traditionally harness Computational Fluid Dynamics (CFD) software to assess the hazards of such hydrogen releases. The Reynolds-Averaged Navier-Stokes (RANS) equations, often chosen by their efficiency and reliability and significantly influences CFD results. However, the closure coefficients within RANS harbor uncertainties. These coefficients, often defaulting to values ascertained from foundational flow experiments, may not generalize across diverse flow contexts, especially for intricate flow challenges like under-expanded hydrogen jets with high velocities and pressures. This study employs surrogate modelling to recalibrate these closure coefficients for CFD simulations of under-expanded hydrogen jets. Sensitivity analysis with Sobol indices quantifies their impact. The recalibration resulted in significantly improved accuracy, compared to their default values, of the CFD against literature reported experimental data. The results can enhance safety assessments and measures for hydrogen applications.
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
7.20
自引率
14.30%
发文量
226
审稿时长
52 days
期刊介绍: The broad scope of the journal is process safety. Process safety is defined as the prevention and mitigation of process-related injuries and damage arising from process incidents involving fire, explosion and toxic release. Such undesired events occur in the process industries during the use, storage, manufacture, handling, and transportation of highly hazardous chemicals.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信