Article(id=1278415572169900763, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1277328335906669390, articleNumber=1003-3033(2026)05-0224-10, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2026.05.0886, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1765296000000, receivedDateStr=2025-12-10, revisedDate=1770739200000, revisedDateStr=2026-02-11, acceptedDate=null, acceptedDateStr=null, onlineDate=1782727624217, onlineDateStr=2026-06-29, pubDate=1779897600000, pubDateStr=2026-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782727624217, onlineIssueDateStr=2026-06-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782727624217, creator=13701087609, updateTime=1782727624217, updator=13701087609, issue=Issue{id=1277328335906669390, tenantId=1146029695717560320, journalId=1146031787341344770, year='2026', volume='36', issue='5', pageStart='1', pageEnd='318', issueExtLink='null', onlineDate='null', pubDate='1779897600000', pubDateStr='2026-05-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1782468406892, creator='13701087609', updateTime=1782867658151, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1279002917143286724, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1277328335906669390, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1279002917143286725, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1277328335906669390, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=224, endPage=233, ext={EN=ArticleExt(id=1278415573554021084, articleId=1278415572169900763, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Numerical simulation of hydrogen diffusion from hydrogen dispenser leakage, columnId=1277328337617941059, journalTitle=China Safety Science Journal, columnName=Safety Technology and Engineering, runingTitle=null, highlight=null, articleAbstract=
In order to reduce accident risks caused by leakage during the refueling process, the hydrogen leakage and diffusion behavior of a 35 MPa hydrogen dispenser was numerically simulated using Ansys Fluent. The characteristics of hydrogen leakage and diffusion under the canopy structure in the refueling zone were investigated. The effects of leakage diameters, ambient wind velocity, and local ventilation on hydrogen concentration distribution and the evolution of flammable areas were analyzed. The results show that when the leakage diameter of filling hose is 2 mm, no flammable area is formed on the underside of canopy. However, when the leakage diameter increases to 5 mm and 10 mm, a flammable area can develop on canopy underside. The location of the highest hydrogen concentration on underside of canopy is concentrated near the axis parallel to the jet direction. Specifically, when leakage diameter is 10 mm, the hydrogen concentration on underside of canopy along vertical leakage direction exhibits a Gaussian distribution. When the ambient wind is perpendicular to leakage direction, wind velocities of 2 m/s and 8 m/s can effectively reduce hydrogen accumulation near the leakage hydrogen dispenser. In contrast, at the wind speed of 5 m/s, a vortex structure was formed near obstacles, leading to hydrogen accumulation and increasing the risk of fire and explosion. Under no ambient wind conditions, local ventilation is provided in the refueling zone. When the ventilation velocity reaches 5 m/s and 10 m/s, the hydrogen cloud concentration within the flow field can be successfully diluted to below the flammable limit within 2 s. Moreover, a ventilation velocity of 10 m/s shows a more pronounced effect in reducing the hydrogen concentrations in front of the leakage source.
, authors=Luyao Tan, Yongzheng Yao
**, Aolan Pan, Maowei Hu, authorsList=Luyao Tan, Yongzheng Yao, Aolan Pan, Maowei Hu, authorCompany=null, correspAuthors=Yongzheng Yao, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1278415583964283647, articleId=1278415572169900763, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=加氢机氢气泄漏扩散数值模拟研究, columnId=1277328337940902469, journalTitle=中国安全科学学报, columnName=安全技术与工程, runingTitle=null, highlight=null, articleAbstract=
为降低加氢机加注过程中因泄漏引发的事故风险,利用Fluent软件模拟35 MPa加氢机氢泄漏扩散过程,研究加氢区罩棚结构下氢泄漏扩散特性,分析泄漏孔径、风速及局部通风等因素对氢气摩尔分数、可燃区域分布的影响。研究结果表明:当加氢软管泄漏孔径为2 mm时,不会在罩棚下表面形成可燃区域,而当泄漏孔径达到5或10 mm时,可在罩棚下表面形成可燃区域,且罩棚下表面摩尔分数最高点在平行于射流中轴线附近。其中,泄漏孔径为10mm,垂直泄漏方向罩棚下侧摩尔分效呈现高斯分布;当环境风向垂直于泄漏方向,风速为2或8 m/s时,可有效减少泄漏加氢机附近氢气积聚;而风速为5 m/s时,在障碍物附近产生涡旋结构,诱导氢气积聚,增加燃爆风险;无环境风条件下,在加氢区加入风机进行局部通风,5或10 m/s均可在2 s内将流场内氢气云摩尔分数稀释至可燃范围以下,而10 m/s的风机风速对稀释泄漏源前方氢气摩尔分数作用更大。
, authors=谭路遥, 姚勇征
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谭路遥 (2000—),女,湖南株洲人,博士研究生,主要研究方向为加氢站氢泄漏燃爆风险防控等。E-mail:tanluyao3915@126.com。
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谭路遥 (2000—),女,湖南株洲人,博士研究生,主要研究方向为加氢站氢泄漏燃爆风险防控等。E-mail:tanluyao3915@126.com。
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Geometric model of hydrogen refueling station, figureFileSmall=ueOEMqHpg6IjxRzLz5NlWQ==, figureFileBig=MIt7G3GXqkfPOMeMWMAvDA==, tableContent=null), ArticleFig(id=1278415592445166374, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图1, caption=
加氢站几何模型, figureFileSmall=ueOEMqHpg6IjxRzLz5NlWQ==, figureFileBig=MIt7G3GXqkfPOMeMWMAvDA==, tableContent=null), ArticleFig(id=1278415593191752487, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.2, caption=
Equipment layout of hydrogen refueling station, figureFileSmall=hShj4Tu7QFOIDdZs56pzxQ==, figureFileBig=DUjt7bKB6h92BMwq7gubhg==, tableContent=null), ArticleFig(id=1278415593359524648, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图2, caption=
加氢站设备布局, figureFileSmall=hShj4Tu7QFOIDdZs56pzxQ==, figureFileBig=DUjt7bKB6h92BMwq7gubhg==, tableContent=null), ArticleFig(id=1278415593577628457, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.3, caption=
Verification results of numerical calculation model, figureFileSmall=/SRZ//Src9KKWvb4QEtReQ==, figureFileBig=WFnySpkeI2A+ZpEJaO4PtA==, tableContent=null), ArticleFig(id=1278415593724429098, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图3, caption=
数值计算模型验证, figureFileSmall=/SRZ//Src9KKWvb4QEtReQ==, figureFileBig=WFnySpkeI2A+ZpEJaO4PtA==, tableContent=null), ArticleFig(id=1278415593804120875, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.4, caption=
Grid independence verification, figureFileSmall=PhA04da/3lTqzHPPfxjgzQ==, figureFileBig=ndNd6Ag7h2sLzIQyXJyvtw==, tableContent=null), ArticleFig(id=1278415594030613292, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图4, caption=
网格独立性验证, figureFileSmall=PhA04da/3lTqzHPPfxjgzQ==, figureFileBig=ndNd6Ag7h2sLzIQyXJyvtw==, tableContent=null), ArticleFig(id=1278415595641226029, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.5, caption=
Flammble areas under different leakage diameters, figureFileSmall=KTDZP0C0cJljvOGmsXJpmQ==, figureFileBig=rdgBGRqRMIEwSobQVqIfuw==, tableContent=null), ArticleFig(id=1278415595725112110, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图5, caption=
不同泄漏孔径可燃区域分布, figureFileSmall=KTDZP0C0cJljvOGmsXJpmQ==, figureFileBig=rdgBGRqRMIEwSobQVqIfuw==, tableContent=null), ArticleFig(id=1278415595880301359, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.6, caption=
Flammable hydrogen cloud volume under different leakage diameter, figureFileSmall=NYmdp/iQ4wRDBkUS5RD1GQ==, figureFileBig=CExR/dwJrquwt9CnN2fP3A==, tableContent=null), ArticleFig(id=1278415596106793776, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图6, caption=
不同泄漏孔径可燃氢气云体积, figureFileSmall=NYmdp/iQ4wRDBkUS5RD1GQ==, figureFileBig=CExR/dwJrquwt9CnN2fP3A==, tableContent=null), ArticleFig(id=1278415596194874161, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.7, caption=
Hydrogen concentration distribution for 10 mm leakage diameter(t=5~25s), figureFileSmall=AQe5OPEr6+LotqsHMIfbug==, figureFileBig=Mcnw9nQWEWlzAuCwsaaIag==, tableContent=null), ArticleFig(id=1278415596291343154, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图7, caption=
泄漏孔径10mm下氢气浓度分布(t=5~25 s), figureFileSmall=AQe5OPEr6+LotqsHMIfbug==, figureFileBig=Mcnw9nQWEWlzAuCwsaaIag==, tableContent=null), ArticleFig(id=1278415596358452019, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.8, caption=
Monitoring curves setting, figureFileSmall=keApeeJ4JkTptp+96OdLTQ==, figureFileBig=0sI8ib4cvweqNfVdiS+t5Q==, tableContent=null), ArticleFig(id=1278415596543001396, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图8, caption=
监测曲线设置, figureFileSmall=keApeeJ4JkTptp+96OdLTQ==, figureFileBig=0sI8ib4cvweqNfVdiS+t5Q==, tableContent=null), ArticleFig(id=1278415596614304565, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.9, caption=
Concentration distribution of monitoring curves under a leakage diameter of 2 mm, figureFileSmall=4fKPJak8L8e2q74aZuuskA==, figureFileBig=O+gBuUIoaPq0NgqLSyzgyw==, tableContent=null), ArticleFig(id=1278415596685607734, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图9, caption=
泄漏孔径2 mm监测曲线摩尔分数分布, figureFileSmall=4fKPJak8L8e2q74aZuuskA==, figureFileBig=O+gBuUIoaPq0NgqLSyzgyw==, tableContent=null), ArticleFig(id=1278415596761105207, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.10, caption=
Concentration distribution of monitoring curves under a leakage diameter of 5mm, figureFileSmall=TSxiBYTgYDVM6sGMNPiSPA==, figureFileBig=fZb/4DYfGGPYJv5K8Cb5kQ==, tableContent=null), ArticleFig(id=1278415596828214072, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图10, caption=
泄漏孔径5 mm监测曲线摩尔分数分布, figureFileSmall=TSxiBYTgYDVM6sGMNPiSPA==, figureFileBig=fZb/4DYfGGPYJv5K8Cb5kQ==, tableContent=null), ArticleFig(id=1278415596899517241, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.11, caption=
Concentration distribution of monitoring curves under a leakage diameter of 10mm, figureFileSmall=i/LVEdU8BwARPwlBHKQZeA==, figureFileBig=CzrwPONStVlpl5kKLwRHdg==, tableContent=null), ArticleFig(id=1278415596991791930, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图11, caption=
泄漏孔径10 mm监测曲线摩尔分数分布, figureFileSmall=i/LVEdU8BwARPwlBHKQZeA==, figureFileBig=CzrwPONStVlpl5kKLwRHdg==, tableContent=null), ArticleFig(id=1278415597079872315, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.12, caption=
Flammable areas under different ambient wind velocity, figureFileSmall=IGIEg9M/f9Bhy2+9OZj8bg==, figureFileBig=5M99MRbIHngWcXxgNRS8IQ==, tableContent=null), ArticleFig(id=1278415597142786876, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图12, caption=
不同环境风速作用下可燃区域分布, figureFileSmall=IGIEg9M/f9Bhy2+9OZj8bg==, figureFileBig=5M99MRbIHngWcXxgNRS8IQ==, tableContent=null), ArticleFig(id=1278415597201507133, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.13, caption=
Streamline distribution under different ambient wind velocity (X=17.78m), figureFileSmall=YtIK/J32LLk+Xx1/zj/50g==, figureFileBig=iXqvx3m3/b33NlP9RKLDBA==, tableContent=null), ArticleFig(id=1278415597268615998, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图13, caption=
不同环境风速作用下流线分布 (X=17.78m), figureFileSmall=YtIK/J32LLk+Xx1/zj/50g==, figureFileBig=iXqvx3m3/b33NlP9RKLDBA==, tableContent=null), ArticleFig(id=1278415597356696383, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.14, caption=
Flammable areas under different local ventilation wind velocity, figureFileSmall=JC2hYUyP+WPY994SauYUxw==, figureFileBig=am6NJRtkMGf5XaabD5AZEQ==, tableContent=null), ArticleFig(id=1278415597490914112, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图14, caption=
不同局部通风风速作用下可燃区域分布, figureFileSmall=JC2hYUyP+WPY994SauYUxw==, figureFileBig=am6NJRtkMGf5XaabD5AZEQ==, tableContent=null), ArticleFig(id=1278415597578994497, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.15, caption=
Distribution of streamlines under different local ventilation wind velocity (X=17.78), figureFileSmall=ZoQjvB8OxtVDuZvBdn3M4g==, figureFileBig=/xu/i6DgP+fsdBMyxZ2img==, tableContent=null), ArticleFig(id=1278415597654491970, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图15, caption=
不同风机风速作用下流线分布(X=17.78), figureFileSmall=ZoQjvB8OxtVDuZvBdn3M4g==, figureFileBig=/xu/i6DgP+fsdBMyxZ2img==, tableContent=null), ArticleFig(id=1278415597767738179, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Fig.16, caption=
Concentration distribution at monitoring points before and after the fan is turned on, figureFileSmall=kGhurYUVomO1GcJQwErYdg==, figureFileBig=UWAj88llcYltqQSerlekcA==, tableContent=null), ArticleFig(id=1278415597847429956, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=图16, caption=
监测点摩尔分数变化, figureFileSmall=kGhurYUVomO1GcJQwErYdg==, figureFileBig=UWAj88llcYltqQSerlekcA==, tableContent=null), ArticleFig(id=1278415597918733125, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Table 1, caption=
Scenario setting for hydrogen dispenser leakage
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况序号 | 泄漏孔径/ mm | 泄漏流量/ (kg/s) | 等效直径/ mm | 环境风速/ (m/s) | 环境风向 | 风机风速/ (m/s) |
| 1 | 2 | 0.068 8 | 23.25 | 0 | — | — |
| 2 | 2 | +X | — |
| 3 | 5 | +X | — |
| 4 | 8 | +X | — |
| 5 | 0 | — | 5 |
| 6 | 0 | — | 10 |
| 7 | 5 | 0.430 0 | 58.12 | 0 | — | — |
| 8 | 10 | 1.720 3 | 116.24 | 0 | — | — |
), ArticleFig(id=1278415598015202118, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=表1, caption=
加氢机泄漏场景设置
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况序号 | 泄漏孔径/ mm | 泄漏流量/ (kg/s) | 等效直径/ mm | 环境风速/ (m/s) | 环境风向 | 风机风速/ (m/s) |
| 1 | 2 | 0.068 8 | 23.25 | 0 | — | — |
| 2 | 2 | +X | — |
| 3 | 5 | +X | — |
| 4 | 8 | +X | — |
| 5 | 0 | — | 5 |
| 6 | 0 | — | 10 |
| 7 | 5 | 0.430 0 | 58.12 | 0 | — | — |
| 8 | 10 | 1.720 3 | 116.24 | 0 | — | — |
), ArticleFig(id=1278415598086505287, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=EN, label=Table 2, caption=
Monitoring curves coordinates
, figureFileSmall=null, figureFileBig=null, tableContent=
| 曲线序号 | 坐标 |
| 1 | (9.5, 7.6, 108) | (24, 7.6, 108) |
| 2 | (9.5, 7.6, 106) | (9.5, 7.6, 106) |
| 3 | (9.5, 7.6, 104) | (24, 7.6, 104) |
), ArticleFig(id=1278415598166197064, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1278415572169900763, language=CN, label=表2, caption=
监测曲线坐标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 曲线序号 | 坐标 |
| 1 | (9.5, 7.6, 108) | (24, 7.6, 108) |
| 2 | (9.5, 7.6, 106) | (9.5, 7.6, 106) |
| 3 | (9.5, 7.6, 104) | (24, 7.6, 104) |
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