Article(id=1156986629039678074, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2402706, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1713110400000, receivedDateStr=2024-04-15, revisedDate=1734364800000, revisedDateStr=2024-12-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1753776708135, onlineDateStr=2025-07-29, pubDate=1742227200000, pubDateStr=2025-03-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753776708135, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753776708135, creator=13701087609, updateTime=1753776708135, updator=13701087609, issue=Issue{id=1156963927277003616, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='8', pageStart='3079', pageEnd='3528', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753771295613, creator=13701087609, updateTime=1753777038876, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156988016305726153, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156988016305726154, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156963927277003616, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3400, endPage=3414, ext={EN=ArticleExt(id=1156986631396876966, articleId=1156986629039678074, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Simulation of Buried Natural Gas Pipeline Leakage and Diffusion Process, columnId=1156963932482130535, journalTitle=Science Technology and Engineering, columnName=Architectural Science, runingTitle=null, highlight=null, articleAbstract=
The occurrence of natural gas leaks in buried gas pipelines is a serious safety event that can have significant economic and environmental impacts. For large-diameter high-pressure gas transmission pipelines, the computational fluid dynamics (CFD) method was used to establish a three-dimensional numerical model that included a${1.4}\mathrm{\;m}$diameter pipeline and the surrounding soil, to study the leakage characteristics of high-pressure gas through a pre-set leak hole in the soil. The CFD model considered the soil as a porous medium material, used the Redlich-Kwong equation of state to describe the temperature-pressure effects of high-pressure gas, and combined species transport and turbulence models to study the impact of leak hole diameter and internal pipeline pressure on leakage rate and temperature distribution. The results show that the leakage rate increases with the increase of hole diameter and pressure. When the leak hole diameter varies from 10 to${50}\mathrm{\;{mm}}$, the leakage rate increases by${77.78}\%$. Ambient temperature can cause the soil temperature field distribution to take different forms. When the ambient temperature is low, the temperature-pressure effect produced by the leakage of high-temperature gas inside the pipeline will be weakened. When the ambient temperature is close to the temperature of the gas inside the pipeline, a detectable temperature change area is produced in the buried range of 0.7 to 1.2 m above the leak hole. The research results help to understand the leakage characteristics and temperature change patterns of buried large-diameter high-pressure gas transmission pipelines, providing a theoretical basis for the layout of pipeline leak monitoring optical cables.
, correspAuthors=Xiang-wei DONG, 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, authorCompany=null, fund=null, authors=null, authorsList=Xiao-hui LIN, Gang LI, Wen-ming YANG, Ke-hong ZENG, Lei WANG, Fei WANG, Xiang-wei DONG), CN=ArticleExt(id=1156986853489467607, articleId=1156986629039678074, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=埋地大直径高压输气管道泄漏特性仿真研究, columnId=1154013916129648643, journalTitle=科学技术与工程, columnName=建筑科学, runingTitle=null, highlight=null, articleAbstract=
埋地输气管道发生天然气泄漏是严重的安全事件,会对经济和环境造成重大影响。针对大直径高压输气管道,采用计算流体力学(computationalfluid dynamics, CFD)方法建立包含1.4 m直径管道及周围土壤的三维数值模型,研究高压气体经过预设泄漏孔在土壤中的泄漏特性。CFD模型将土壤考虑为多孔介质材料,采用 Redilich-Kwong状态方程描述高压气体的温度-压力效应,结合组分输运和湍流模型,研究泄漏孔径、管内压力等因素对泄漏速率和温度分布的影响规律。结果表明:泄漏速率随着孔径、压力的增大而增大,当泄漏孔径在${10}\sim {50}\mathrm{\;{mm}}$变化时,泄漏速率增加了${77.78}\%$;环境温度会导致土壤温度场分布呈现不同形式,环境温度较低时,管道内高温气体泄漏产生的温度-压力效应将被削弱;当环境温度与管内气体温度接近时,在泄漏口上方${0.7}\sim {1.2}\mathrm{\;m}$埋地范围内产生可监测的温度变化区。研究成果有助于理解埋地大直径高压输气管道泄漏特性和温度变化规律,为管道泄漏监测光缆的布设提供理论依据。
, correspAuthors=董祥伟, authorNote=null, correspAuthorsNote=
*董祥伟(1986—),男,汉族,山东潍坊人,博士,讲师。研究方向:氢气泄漏检测与模拟。E-mail: dongxw139@163.com。
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林晓晖(1985—),男,汉族,河北廊坊人,硕士,高级工程师。研究方向:管道安全监测和监测领域技术研发和应用推广。E-mail: 417114052@qq.com。
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1 中国石油天然气管道通信电力工程有限公司 廊坊 065000, bio={"content":"
林晓晖(1985—),男,汉族,河北廊坊人,硕士,高级工程师。研究方向:管道安全监测和监测领域技术研发和应用推广。E-mail: 417114052@qq.com。
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林晓晖(1985—),男,汉族,河北廊坊人,硕士,高级工程师。研究方向:管道安全监测和监测领域技术研发和应用推广。E-mail: 417114052@qq.com。
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2 PetroChina Pipeline Engineering Co., Ltd. Langfang 065000 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1156986855808917799, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, authorId=1156986855624368417, language=CN, stringName=王磊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 中国石油天然气管道局工程有限公司 廊坊 065000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1156986854538043631, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, xref=2, ext=[AuthorCompanyExt(id=1156986854546432240, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854538043631, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 中国石油天然气管道局工程有限公司 廊坊 065000)])]), Author(id=1156986855876026667, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1156986855951524143, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, authorId=1156986855876026667, language=EN, stringName=Fei WANG, firstName=Fei, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 中国石油天然气管道通信电力工程有限公司 廊坊 065000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1156986854454157546, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, xref=1, ext=[AuthorCompanyExt(id=1156986854462546155, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854454157546, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 中国石油天然气管道通信电力工程有限公司 廊坊 065000)])]), Author(id=1156986856098324789, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, orderNo=6, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=dongxw139@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1156986856186405177, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, authorId=1156986856098324789, language=EN, stringName=Xiang-wei DONG, firstName=Xiang-wei, middleName=null, lastName=DONG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, *, address=
3 School of Mechanical and Electronic Engineering Shandong University of Science and Technology Qingdao 266590 China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1156986856257708347, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, authorId=1156986856098324789, language=CN, stringName=董祥伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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17(1): 194-198., articleTitle=Numerical study on the diffusion of natural gas leaks from buried pipelines under different discretization formats, refAbstract=null)], funds=[Fund(id=1156986861404119470, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, awardId=2023ZZ120X, language=CN, fundingSource=中国石油天然气集团有限公司基础性前瞻性科技专项(2023ZZ120X), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1156986854454157546, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, xref=1, ext=[AuthorCompanyExt(id=1156986854462546155, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854454157546, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 PetroChina Pipeline Communication Power Engineering Co., Ltd. Langfang 065000 China), AuthorCompanyExt(id=1156986854466740460, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854454157546, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石油天然气管道通信电力工程有限公司 廊坊 065000)]), AuthorCompany(id=1156986854538043631, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, xref=2, ext=[AuthorCompanyExt(id=1156986854546432240, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854538043631, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 PetroChina Pipeline Engineering Co., Ltd. Langfang 065000 China), AuthorCompanyExt(id=1156986854550626545, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854538043631, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 中国石油天然气管道局工程有限公司 廊坊 065000)]), AuthorCompany(id=1156986854613541109, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, xref=3, ext=[AuthorCompanyExt(id=1156986854621929717, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854613541109, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 School of Mechanical and Electronic Engineering Shandong University of Science and Technology Qingdao 266590 China), AuthorCompanyExt(id=1156986854626124023, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, companyId=1156986854613541109, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 山东科技大学 机械电子工程学院 青岛 266590)])], figs=[ArticleFig(id=1156986858459717998, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 1, caption=
Physical model of the buried natural gas pipeline and the surrounding soil, figureFileSmall=qiO7iUvb3ISSXi1U0v2nHg==, figureFileBig=AK7fhy2CK8A/cpXWGieY4Q==, tableContent=null), ArticleFig(id=1156986858560381298, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图1, caption=
埋地天然气管道与土壤物理模型示意图, figureFileSmall=qiO7iUvb3ISSXi1U0v2nHg==, figureFileBig=AK7fhy2CK8A/cpXWGieY4Q==, tableContent=null), ArticleFig(id=1156986858652655990, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 2, caption=
Grid model, figureFileSmall=hR3f8TAwG88UpYpqKyl5sA==, figureFileBig=bIRu8TagNvWpA3HdzsxCRA==, tableContent=null), ArticleFig(id=1156986858719764855, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图2, caption=
网格模型, figureFileSmall=hR3f8TAwG88UpYpqKyl5sA==, figureFileBig=bIRu8TagNvWpA3HdzsxCRA==, tableContent=null), ArticleFig(id=1156986858782679417, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 3, caption=
Flow chart of numerical simulation for multi-component transmission problem, figureFileSmall=hkepskp2QK5zmZ3/1v5VWA==, figureFileBig=826Q/RsfM6XoAEaFfAqpSg==, tableContent=null), ArticleFig(id=1156986858849788283, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图3, caption=
多组分传输问题的数值仿真流程图, figureFileSmall=hkepskp2QK5zmZ3/1v5VWA==, figureFileBig=826Q/RsfM6XoAEaFfAqpSg==, tableContent=null), ArticleFig(id=1156986858925285757, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 4, caption=
Pressure and velocity distribution near the leak outlet, figureFileSmall=dmzXuyF9vTx4jwRKUay4lw==, figureFileBig=8oQCVLSnumxiCGq9pUJbcg==, tableContent=null), ArticleFig(id=1156986858979811711, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图4, caption=
泄漏口附近的压力及速度分布 管内压力为$1\mathrm{{MPa}}$,孔径为${50}\mathrm{\;{mm}}$,壤土
, figureFileSmall=dmzXuyF9vTx4jwRKUay4lw==, figureFileBig=8oQCVLSnumxiCGq9pUJbcg==, tableContent=null), ArticleFig(id=1156986859042726273, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 5, caption=
Flow field distribution when pipeline gas leaks into the air, figureFileSmall=L9Ce9C13hbKlAs2hLsJPsA==, figureFileBig=f943Mxrxzgfb7alxhazrJA==, tableContent=null), ArticleFig(id=1156986859122418051, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图5, caption=
管道气体向空气中泄漏时的流场分布 管内压力$1\mathrm{{MPa}}$,孔径${50}\mathrm{\;{mm}}$
, figureFileSmall=L9Ce9C13hbKlAs2hLsJPsA==, figureFileBig=f943Mxrxzgfb7alxhazrJA==, tableContent=null), ArticleFig(id=1156986859193721221, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 6, caption=
Simulation results of pressure field when high-pressure gas leaks into different types of soil, figureFileSmall=j/eD0VwwuobRxls0CZ7Yxw==, figureFileBig=xJzj+Fg11KRua9LSfzEiYQ==, tableContent=null), ArticleFig(id=1156986859244052871, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图6, caption=
高压气体向不同类型土壤中泄漏时的压力场稳态模拟结果 管内压力$1\mathrm{{MPa}}$,孔径${50}\mathrm{\;{mm}}$
, figureFileSmall=j/eD0VwwuobRxls0CZ7Yxw==, figureFileBig=xJzj+Fg11KRua9LSfzEiYQ==, tableContent=null), ArticleFig(id=1156986859298578825, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 7, caption=
Velocity distribution at the jet outlet corresponding to different types of soil, figureFileSmall=XS2x0kPiVIs6JMhGBj/fdg==, figureFileBig=Inrkx9oKakdIRlUGkv4+VQ==, tableContent=null), ArticleFig(id=1156986859361493387, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图7, caption=
不同类型土壤对应的射流出口处的速度分布 管内压力$1\mathrm{{MPa}}$,孔径${50}\mathrm{\;{mm}}$
, figureFileSmall=XS2x0kPiVIs6JMhGBj/fdg==, figureFileBig=Inrkx9oKakdIRlUGkv4+VQ==, tableContent=null), ArticleFig(id=1156986859441185165, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 8, caption=
Relationship between the leakage rate and the pressure in the pipe under different leakage hole, figureFileSmall=cxB4ZU35Xnf2ZbjvRRvC3g==, figureFileBig=wmx5MusDpztTh3qrOHTHZQ==, tableContent=null), ArticleFig(id=1156986859499905423, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图8, caption=
不同泄漏孔径下泄漏速率与管道压力的关系, figureFileSmall=cxB4ZU35Xnf2ZbjvRRvC3g==, figureFileBig=wmx5MusDpztTh3qrOHTHZQ==, tableContent=null), ArticleFig(id=1156986859562819984, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 9, caption=
Relationship between the leakage rate and the hole diameter, figureFileSmall=+SMud2L0C6224zZy0HSNjw==, figureFileBig=K6O8zclYAEugsQ4eRkKqug==, tableContent=null), ArticleFig(id=1156986859629928849, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图9, caption=
泄漏速率与泄漏孔径的关系, figureFileSmall=+SMud2L0C6224zZy0HSNjw==, figureFileBig=K6O8zclYAEugsQ4eRkKqug==, tableContent=null), ArticleFig(id=1156986859671871890, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 10, caption=
Simulation results of leakage temperature field under different pipe pressures, figureFileSmall=dGWiJupKYHm12PwKAV0WqA==, figureFileBig=ft8zEHsrywlt6MOqDseZRw==, tableContent=null), ArticleFig(id=1156986859730592147, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图10, caption=
不同压力下泄漏温度场模拟结果 孔径${50}\mathrm{\;{mm}}$
, figureFileSmall=dGWiJupKYHm12PwKAV0WqA==, figureFileBig=ft8zEHsrywlt6MOqDseZRw==, tableContent=null), ArticleFig(id=1156986859789312404, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 11, caption=
Temperature distribution along the central axis of the leakage port under different leakage pressures (aperture ${50}\mathrm{\;{mm}}$), figureFileSmall=wwGwdmmZWwYN0MWclIE62w==, figureFileBig=Mgt1nnIVDsO0wHWBO5NX9A==, tableContent=null), ArticleFig(id=1156986859848032661, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图11, caption=
温度沿泄漏口中心轴线的分布 (孔径 ${50}\mathrm{\;{mm}}$), figureFileSmall=wwGwdmmZWwYN0MWclIE62w==, figureFileBig=Mgt1nnIVDsO0wHWBO5NX9A==, tableContent=null), ArticleFig(id=1156986859906752918, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 12, caption=
Simulation results of leakage temperature field under different ambient temperature (aperture ${50}\mathrm{\;{mm}}$), figureFileSmall=xebV1sNf9JaEECKiNMJAgQ==, figureFileBig=ffYegIa9Pw/JSQ0IF6H39Q==, tableContent=null), ArticleFig(id=1156986859965473175, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图12, caption=
不同环境温度下温度场模拟结果(孔径 ${50}\mathrm{\;{mm}}$), figureFileSmall=xebV1sNf9JaEECKiNMJAgQ==, figureFileBig=ffYegIa9Pw/JSQ0IF6H39Q==, tableContent=null), ArticleFig(id=1156986860024193432, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 13, caption=
Temperature distribution along the central axis of the leakage port (leakage aperture ${50}\mathrm{\;{mm}}$), figureFileSmall=p7rCYBssMb81C7WU5dEtSQ==, figureFileBig=qo5Fq5Mlam4yaIrmAEoqDA==, tableContent=null), ArticleFig(id=1156986860087107993, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图13, caption=
不同环境温度下土壤温度沿泄漏口中心轴线的分布 (泄漏孔径 ${50}\mathrm{\;{mm}}$), figureFileSmall=p7rCYBssMb81C7WU5dEtSQ==, figureFileBig=qo5Fq5Mlam4yaIrmAEoqDA==, tableContent=null), ArticleFig(id=1156986860150022554, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 14, caption=
Effective monitoring distance of sensors at different ambient temperatures, figureFileSmall=BYCgCddsPh+ybV84J3jwRA==, figureFileBig=oUoNVMIMUkowv6llXoUKDA==, tableContent=null), ArticleFig(id=1156986860196159899, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图14, caption=
不同环境温度下传感器的有效监测距离, figureFileSmall=BYCgCddsPh+ybV84J3jwRA==, figureFileBig=oUoNVMIMUkowv6llXoUKDA==, tableContent=null), ArticleFig(id=1156986860271657372, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 15, caption=
Simulation results of leakage temperature field under five ambient temperatures (the pipeline pressure is $2\mathrm{{MPa}}$), figureFileSmall=5Frs66tWKmTwn0dAm7wV3g==, figureFileBig=nxLY7rELGV2HHRWLqxrNWA==, tableContent=null), ArticleFig(id=1156986860326183325, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图15, caption=
6种环境温度下泄漏温度场分布规律(管道压力为 $2\mathrm{{MPa}}$), figureFileSmall=5Frs66tWKmTwn0dAm7wV3g==, figureFileBig=nxLY7rELGV2HHRWLqxrNWA==, tableContent=null), ArticleFig(id=1156986860380709278, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 16, caption=
Simulation results of leakage temperature field under five ambient temperatures (the pipeline pressure is $5\mathrm{{MPa}}$), figureFileSmall=50OiFLn71MOyTYjwaOqPhQ==, figureFileBig=jnEKJ/bYcovOKKaUAizzQQ==, tableContent=null), ArticleFig(id=1156986860452012447, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图16, caption=
6 种环境温度下泄漏温度场分布规律(管道压力为 $5\mathrm{{MPa}}$), figureFileSmall=50OiFLn71MOyTYjwaOqPhQ==, figureFileBig=jnEKJ/bYcovOKKaUAizzQQ==, tableContent=null), ArticleFig(id=1156986860502344096, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 17, caption=
Comparison between simulation and experimental results, figureFileSmall=/qEd5C2dfN445p7my8MBqw==, figureFileBig=n6lAybAnBrOeVNb0vPCjHg==, tableContent=null), ArticleFig(id=1156986860556870049, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图17, caption=
数值模拟与实验结果对比, figureFileSmall=/qEd5C2dfN445p7my8MBqw==, figureFileBig=n6lAybAnBrOeVNb0vPCjHg==, tableContent=null), ArticleFig(id=1156986860611396002, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 18, caption=
Diagram of pipeline leakage model with erosion craters, figureFileSmall=AIdcZ8ljg16x3o7bqlQ6SQ==, figureFileBig=Fq0/853Qgvb6VuxclpqaUQ==, tableContent=null), ArticleFig(id=1156986860665921955, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图18, caption=
具有冲蚀凹坑的管道泄漏模型示意图, figureFileSmall=AIdcZ8ljg16x3o7bqlQ6SQ==, figureFileBig=Fq0/853Qgvb6VuxclpqaUQ==, tableContent=null), ArticleFig(id=1156986860728836516, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Fig. 19, caption=
Relationship curve of monitoring point pressure-time, figureFileSmall=3275Dyifbjkqjy6IAesgIw==, figureFileBig=pBpgZY5gx4imYKn6wBP78g==, tableContent=null), ArticleFig(id=1156986860787556773, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=图19, caption=
监测点压力-时间的关系曲线, figureFileSmall=3275Dyifbjkqjy6IAesgIw==, figureFileBig=pBpgZY5gx4imYKn6wBP78g==, tableContent=null), ArticleFig(id=1156986860842082726, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Table 1, caption=
Pipeline physical parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 管道直径/mm | 1 400 |
| 管道壁厚/mm | 30 |
| 单段管道长度 $/\mathrm{m}$ | 10 |
| 输送压力/MPa | 1.0~10.0 |
| 输送介质 | 天然气 |
| 介质流速 $/\left({\mathrm{m}\cdot {\mathrm{s}}^{-1}}\right)$ | 不大于 15 |
| 输送温度/K | 300 |
), ArticleFig(id=1156986860900802983, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=表1, caption=
管道本体参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 管道直径/mm | 1 400 |
| 管道壁厚/mm | 30 |
| 单段管道长度 $/\mathrm{m}$ | 10 |
| 输送压力/MPa | 1.0~10.0 |
| 输送介质 | 天然气 |
| 介质流速 $/\left({\mathrm{m}\cdot {\mathrm{s}}^{-1}}\right)$ | 不大于 15 |
| 输送温度/K | 300 |
), ArticleFig(id=1156986860963717544, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Table 2, caption=
Pipeline environmental parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 管道埋深/mm | 管顶 1 200 |
| 环境温度/℃ | 0(冬季)/26.85(夏季) |
), ArticleFig(id=1156986861026632105, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=表2, caption=
管道环境参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 管道埋深/mm | 管顶 1 200 |
| 环境温度/℃ | 0(冬季)/26.85(夏季) |
), ArticleFig(id=1156986861085352362, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Table 3, caption=
Model parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 设置 | 备注 |
| 压力/MPa | 1~10.0 | 压力不受泄漏影响 |
| 管径/mm | 1 400 | - |
| 泄漏孔径/mm | 最小 10 最大 50 | - |
| 土壤孔隙率 | 0.2~0.5 | |
| 埋深 $/\mathrm{m}$ | 1.2 | 地表距管道上顶点的距离 |
| 管材 | 无缝钢管 Q235B | 管道为绝热 |
| 壁厚/mm | 30 | 绝热边界无影响 |
| 环境 | 地表平整 | 为标准大气环境 |
), ArticleFig(id=1156986861135684011, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=表3, caption=
模型参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 设置 | 备注 |
| 压力/MPa | 1~10.0 | 压力不受泄漏影响 |
| 管径/mm | 1 400 | - |
| 泄漏孔径/mm | 最小 10 最大 50 | - |
| 土壤孔隙率 | 0.2~0.5 | |
| 埋深 $/\mathrm{m}$ | 1.2 | 地表距管道上顶点的距离 |
| 管材 | 无缝钢管 Q235B | 管道为绝热 |
| 壁厚/mm | 30 | 绝热边界无影响 |
| 环境 | 地表平整 | 为标准大气环境 |
), ArticleFig(id=1156986861194404268, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=EN, label=Table 4, caption=
Parameters of the leakage calculation model, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| $\alpha$ | ${1.805}\times {10}^{-3}$ |
| $\beta$ | ${2.051}\times {10}^{-3}$ |
| $\gamma$ | ${8.803}\times {10}^{-7}$ |
| ${\varepsilon }_{1}$ | ${3.52}\times {10}^{-5}$ |
| ${\varepsilon }_{2}$ | ${1.385}\times {10}^{-6}$ |
| $\omega$ | ${2.7724}\times {10}^{-5}$ |
), ArticleFig(id=1156986861261513133, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156986629039678074, language=CN, label=表4, caption=
泄漏计算模型参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| $\alpha$ | ${1.805}\times {10}^{-3}$ |
| $\beta$ | ${2.051}\times {10}^{-3}$ |
| $\gamma$ | ${8.803}\times {10}^{-7}$ |
| ${\varepsilon }_{1}$ | ${3.52}\times {10}^{-5}$ |
| ${\varepsilon }_{2}$ | ${1.385}\times {10}^{-6}$ |
| $\omega$ | ${2.7724}\times {10}^{-5}$ |
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