Article(id=1320037418678473049, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037383882519364, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.12.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1749225600000, receivedDateStr=2025-06-07, revisedDate=1760284800000, revisedDateStr=2025-10-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1792651045722, onlineDateStr=2026-10-22, pubDate=1767110400000, pubDateStr=2025-12-31, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792651045722, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792651045722, creator=13701087609, updateTime=1792651045722, updator=13701087609, issue=Issue{id=1320037383882519364, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='12', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1767110400000', pubDateStr='2025-12-31', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792651037426, creator='13701087609', updateTime=1792656182714, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320058964839093145, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037383882519364, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320058964839093146, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037383882519364, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=47, endPage=57, ext={EN=ArticleExt(id=1320037418863022426, articleId=1320037418678473049, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Study on flow characteristics and influencing laws of multi‑component CO
2 injection nozzle, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In response to the insufficient research on existing stratified injection nozzles regarding the “large diameter+strong throttling” structure,as well as the complexity of multi‑component injection conditions involving CO2,N2,and CH4 and the unclear flow characteristics of the nozzles,this study proposes applying the Helmholtz nozzle to stratified injection.A real gas flow model considering the variation of multi‑component fluid properties with temperature and pressure was established.The flow characteristics and influencing laws of the nozzle under different component concentrations,nozzle contraction section diameters,and confining pressures were investigated.The results show that under the same volumetric flow rate,the throttling pressure drop of the Helmholtz nozzle significantly decreases with a reduction in CO2 mass fraction.Compared to the pure CO2 control group,when the mass ratio of CO2,N2,and CH4 is 0.34∶0.42∶0.24,the throttling pressure drop reduction can reach 69.56%.The jet temperature is significantly affected by the CO2 mass fraction.Compared to the pure CO2 control group,when the mass ratio of CO2,N2,and CH4 is 0.65∶0.25∶0.10,the temperature drop increase can reach 40.56%.Under high confining pressure conditions,a high throttling pressure drop and a smaller temperature drop can be achieved.The relationship between the throttling pressure drop and the nozzle contraction section diameter exhibits an inflection point.Under specific nozzle diameter combinations,a multi‑stage throttling effect can be achieved,enabling adaptive transfer and adjustment of the throttling effect while maintaining high flow capacity.Therefore,the feasibility of using the Helmholtz nozzle as a stratified injection nozzle is high.The research findings can provide a theoretical basis for the structural design of downhole stratified injection tools and the optimization of gas injection process parameters.
, authors=Mingsheng LIU
1, 2, Lingzhi YANG
3, Haizhu WANG
1, Bin WANG
1, Chao YU
2, Guanhua LI
2, Lianhe SUN
1, 2, Xiao HU
1, authorsList=Mingsheng LIU, Lingzhi YANG, Haizhu WANG, Bin WANG, Chao YU, Guanhua LI, Lianhe SUN, Xiao HU, authorCompany=null, correspAuthors=Haizhu WANG, 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=1320037423271235960, articleId=1320037418678473049, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=多组分CO
2配注气嘴流动特性及影响规律研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
针对现有分层配注气嘴在“大通径+强节流”结构方面的研究不足,以及CO2,N2,CH4多组分注入工况复杂、气嘴流动特征不明等问题,提出将亥姆赫兹(Helmholtz)气嘴应用于分层配注中,建立了考虑多组分流体物性随温度、压力变化的真实气体流动模型,研究了不同组分浓度、气嘴收缩段直径、围压条件下的气嘴流动特性及影响规律。结果表明,相同体积流量下,Helmholtz气嘴节流压差随CO2质量含量降低而显著降低,同纯CO2对照组相比,当CO2,N2,CH4三者质量比为0.34∶0.42∶0.24时,节流压差降幅可达69.56%;射流温度受CO2质量含量影响显著,同纯CO2对照组相比,当CO2,N2,CH4三者质量比为0.65∶0.25∶0.10时,温度降增幅可达40.56%;高围压条件下,可形成高节流压差及更小的温度降;节流压差与气嘴收缩段直径的关系存在拐点,在特定气嘴直径组合条件下存在多级节流效应,能够实现节流效果自适应转移与调节,并具备高通过特性,因此,将Helmholtz气嘴作为分层配注气嘴的可行性较高。研究成果可为井下分层配注器结构设计和注气工艺参数优化提供理论基础。
, authors=刘铭盛
1, 2, 杨玲智
3, 王海柱
1, 王斌
1, 于超
2, 李冠华
2, 孙廉贺
1, 2, 胡萧
1, authorsList=刘铭盛, 杨玲智, 王海柱, 王斌, 于超, 李冠华, 孙廉贺, 胡萧, authorCompany=null, correspAuthors=王海柱, authorNote=
, correspAuthorsNote=
王海柱(1981),男,教授,博士生导师,主要从事高压水射流技术、超临界CO
2钻完井技术研究工作,通信地址:102249北京市昌平区府学路18号中国石油大学(北京)石油工程学院,E-mail:
whz0001@126.com。
, copyrightStatement=
作者向本刊所投稿件一经本刊录用,则该论文的复制权、发行权、信息网络传播权、翻译权、汇编权等权利视为自动转让给本刊。本刊为国内各主要数据库收录期刊,本刊所发表的稿件将同时通过互联网进行网络出版或提供信息服务。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=PLha36AXgQmPdzOxTnrQ9w==, magXml=ppGJ3os4ztC40lO9rVv/OA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=V6aAlWiF24fscASiSXH5hw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=O4fq3zzFxt0TGu4+asJ1Cg==, mapNumber=null, fund=null)}, authors=[Author(id=1320037423824884099, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2022310167@student.cup.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320037425469051270, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, authorId=1320037423824884099, language=EN, stringName=Mingsheng LIU, firstName=Mingsheng, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1State Key Laboratory of Petroleum Resources and Engineering,China University of Petroleum,Beijing 102249,China
2University of Alberta,Edmonton T6G 2H5,Canada, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320037425565520263, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, authorId=1320037423824884099, language=CN, stringName=刘铭盛, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1中国石油大学(北京) 油气资源与工程全国重点实验室,北京 102249
2加拿大阿尔伯塔大学,埃德蒙顿 T6G 2H5, bio={"content":"
刘铭盛(1998),男,博士研究生,主要研究方向为CO2射流钻完井及增产理论与技术,E-mail:2022310167@student.cup.edu.cn。
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刘铭盛(1998),男,博士研究生,主要研究方向为CO2射流钻完井及增产理论与技术,E-mail:2022310167@student.cup.edu.cn。
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3PetroChina Changqing Oilfield Branch Oil and Gas Technology Research Institute,Xi'an 710018,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320037425771041164, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, authorId=1320037425620046217, language=CN, stringName=杨玲智, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3中国石油长庆油田分公司油气工艺研究所,西安 710018, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1320037423736803711, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, xref=3, ext=[AuthorCompanyExt(id=1320037423753580928, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, companyId=1320037423736803711, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2), Keyword(id=1320037427767529906, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, orderNo=2, keyword=分层配注), Keyword(id=1320037427851415987, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, orderNo=3, keyword=亥姆赫兹气嘴), Keyword(id=1320037427922719156, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, orderNo=4, keyword=节流压差), Keyword(id=1320037427998216629, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, orderNo=5, keyword=射流流场)], refs=[Reference(id=1320037432238658004, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=0, authorNames=null, journalName=null, refType=null, unstructuredReference=窦立荣,孙龙德,吕伟峰,等.全球二氧化碳捕集、利用与封存产业发展趋势及中国面临的挑战与对策[J].石油勘探与开发,2023,50(5):1083-1096., articleTitle=null, refAbstract=null), Reference(id=1320037432305766869, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=1, authorNames=null, journalName=null, refType=null, unstructuredReference=DOU L R,SUN L D,LYU W F,et al.Trend of global carbon dioxide capture,utilization and storage industry and challenges and countermeasures in China[J].Petroleum Exploration and Development,2023,50(5):1083-1096., articleTitle=null, refAbstract=null), Reference(id=1320037432372875734, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=2, rfOrder=2, authorNames=null, journalName=null, refType=null, unstructuredReference=XU T F,TIAN H L,ZHU H X,et al.China actively promotes CO
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2 gas continuous leakage and diffusion in a bucket chamber[J].Journal of Zhejiang University of Science and Technology,2018,30(3):205-210., articleTitle=null, refAbstract=null), Reference(id=1320037435766067693, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=16, rfOrder=25, authorNames=null, journalName=null, refType=null, unstructuredReference=HUBER M L,LEMMON E W,BELL I H,et al.The NIST REFPROP database for highly accurate properties of industrially important fluids[J].Industrial & Engineering Chemistry Research,2022,61(42):15449-15472., articleTitle=null, refAbstract=null), Reference(id=1320037435849953774, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=17, rfOrder=26, authorNames=null, journalName=null, refType=null, unstructuredReference=LEMMON E W,TILLNER‑ROTH R.A helmholtz energy equation of state for calculating the thermodynamic properties of fluid mixtures[J].Fluid Phase Equilibria,1999,165(1):1-21., articleTitle=null, refAbstract=null), Reference(id=1320037435904479727, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=18, rfOrder=27, authorNames=null, journalName=null, refType=null, unstructuredReference=HERNÁNDEZ‑GÓMEZ R,TUMA D,LOZANO‑MARTÍN D,et al.Accurate experimental(
p,ρ,T) data of natural gas mixtures for the assessment of reference equations of state when dealing with hydrogen‑enriched natural gas[J].International Journal of Hydrogen Energy,2018,43(49):21983-21998., articleTitle=null, refAbstract=null), Reference(id=1320037435975782896, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=19, rfOrder=28, authorNames=null, journalName=null, refType=null, unstructuredReference=International Organization for Standardization.Natural gas—Calculation of thermodynamic properties-Part 2:Single‑phase properties(gas,liquid,and dense fluid) for extended ranges of application:ISO 20765-2:2015(E)[S].Geneva:ISO,2015., articleTitle=null, refAbstract=null), Reference(id=1320037436055474673, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=20, rfOrder=29, authorNames=null, journalName=null, refType=null, unstructuredReference=VARZANDEH F,STENBY E H,YAN W.Comparison of GERG-2008 and simpler EOS models in calculation of phase equilibrium and physical properties of natural gas related systems[J].Fluid Phase Equilibria,2017,434:21-43., articleTitle=null, refAbstract=null), Reference(id=1320037436139360754, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=21, rfOrder=30, authorNames=null, journalName=null, refType=null, unstructuredReference=YUAN M,LI D,KANG Y,et al.The characteristics of self‑resonating jet issuing from the helmholtz nozzle combined with a venturi tube structure[J].Journal of Applied Fluid Mechanics,2020,13(3):779-791., articleTitle=null, refAbstract=null), Reference(id=1320037436202275315, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=22, rfOrder=31, authorNames=null, journalName=null, refType=null, unstructuredReference=SHEN H L,LIU Y,WEI J P,et al.Impact frequency variation of self‑excited oscillation pulsed supercritical carbon dioxide jets[J].Petroleum Exploration and Development,2023,50(5):1261-1268., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1320037423501922681, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, xref=1, ext=[AuthorCompanyExt(id=1320037423518699898, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, companyId=1320037423501922681, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1中国石油大学(北京) 油气资源与工程全国重点实验室,北京 102249)]), AuthorCompany(id=1320037423602585980, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, xref=2, ext=[AuthorCompanyExt(id=1320037423619363197, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, companyId=1320037423602585980, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3中国石油长庆油田分公司油气工艺研究所,西安 710018)])], figs=[ArticleFig(id=1320037428174377398, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.1, caption=
Schematic of stratified injection technology, figureFileSmall=p53VBBraJL5IUzqucZ+oTg==, figureFileBig=V6aAlWiF24fscASiSXH5hw==, tableContent=null), ArticleFig(id=1320037428270846391, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图1, caption=
分层配注技术示意, figureFileSmall=p53VBBraJL5IUzqucZ+oTg==, figureFileBig=V6aAlWiF24fscASiSXH5hw==, tableContent=null), ArticleFig(id=1320037430011482552, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.2, caption=
Geometric model and mesh generation, figureFileSmall=cHoCy0nVnhAERoaQgHREkQ==, figureFileBig=imp6OzVLadeDv44fdPh++A==, tableContent=null), ArticleFig(id=1320037430082785721, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图2, caption=
几何模型与网格划分, figureFileSmall=cHoCy0nVnhAERoaQgHREkQ==, figureFileBig=imp6OzVLadeDv44fdPh++A==, tableContent=null), ArticleFig(id=1320037430158283194, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.3, caption=
Distribution of nozzle axis temperature and total pressure under different mesh schemes, figureFileSmall=ovlb/tz8VkbXwPMaZesKCw==, figureFileBig=UXmPDoWB4Hl9rFUfGKTPaQ==, tableContent=null), ArticleFig(id=1320037430225392059, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图3, caption=
不同网格方案下气嘴轴线温度、总压分布, figureFileSmall=ovlb/tz8VkbXwPMaZesKCw==, figureFileBig=UXmPDoWB4Hl9rFUfGKTPaQ==, tableContent=null), ArticleFig(id=1320037430309278140, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.4, caption=
Throttling experiment setup,procedure and measuring point arrangement for nozzle, figureFileSmall=QNiW2nqLogOpHtBjY2M3sQ==, figureFileBig=OOq201x5nYYLjhX7+cYinQ==, tableContent=null), ArticleFig(id=1320037430376387005, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图4, caption=
气嘴节流实验装置、实验流程及测点布置, figureFileSmall=QNiW2nqLogOpHtBjY2M3sQ==, figureFileBig=OOq201x5nYYLjhX7+cYinQ==, tableContent=null), ArticleFig(id=1320037430443495870, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.5, caption=
Distribution of pressure and velocity along nozzle centerline under different component concentrations, figureFileSmall=R18XpowHiF+0s20bqOesAA==, figureFileBig=dd7is4Hx768QrqsO5fK8Xg==, tableContent=null), ArticleFig(id=1320037430514799039, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图5, caption=
不同组分浓度下气嘴中轴线压力、流速分布, figureFileSmall=R18XpowHiF+0s20bqOesAA==, figureFileBig=dd7is4Hx768QrqsO5fK8Xg==, tableContent=null), ArticleFig(id=1320037430598685120, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.6, caption=
Temperature distribution in nozzle under different component concentrations, figureFileSmall=WUJphGoBv15lebYsd7WaTg==, figureFileBig=zj4GNBB5o2ZaeF1w+DLyYA==, tableContent=null), ArticleFig(id=1320037430682571201, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图6, caption=
不同组分浓度下气嘴温度分布, figureFileSmall=WUJphGoBv15lebYsd7WaTg==, figureFileBig=zj4GNBB5o2ZaeF1w+DLyYA==, tableContent=null), ArticleFig(id=1320037430758068674, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.7, caption=
Variation relationship of flow parameters in nozzle under different component concentrations, figureFileSmall=MKRAolHhvACvDfZgaF8eHQ==, figureFileBig=gmI3fdq8Ncz7tA6jAsfQmw==, tableContent=null), ArticleFig(id=1320037430837760451, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图7, caption=
不同组分浓度下气嘴流动参数变化关系, figureFileSmall=MKRAolHhvACvDfZgaF8eHQ==, figureFileBig=gmI3fdq8Ncz7tA6jAsfQmw==, tableContent=null), ArticleFig(id=1320037430917452228, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.8, caption=
Distribution of physical quantities along centerline under different nozzle contraction section diameters, figureFileSmall=dz/pKGjV64JrQq6KfVdUVw==, figureFileBig=DER7EXOO/G2e7LSNAVz1lA==, tableContent=null), ArticleFig(id=1320037431013921221, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图8, caption=
不同气嘴收缩段直径条件下中轴线物理量分布, figureFileSmall=dz/pKGjV64JrQq6KfVdUVw==, figureFileBig=DER7EXOO/G2e7LSNAVz1lA==, tableContent=null), ArticleFig(id=1320037431076835782, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.9, caption=
Variation relationship of flow parameters under different nozzle contraction section diameters, figureFileSmall=eQtVDHdG42omgMnwku0dTw==, figureFileBig=otx6beqL/VtnACwx9qszRQ==, tableContent=null), ArticleFig(id=1320037431152333255, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图9, caption=
不同气嘴收缩段直径下流动参数变化关系, figureFileSmall=eQtVDHdG42omgMnwku0dTw==, figureFileBig=otx6beqL/VtnACwx9qszRQ==, tableContent=null), ArticleFig(id=1320037431236219336, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.10, caption=
Fluid streamlines under different nozzle contraction section diameters, figureFileSmall=LTNhGEzVQ8EPghaZ6GBACQ==, figureFileBig=Xmo5XKY+TYuCW4PaR9l3Fg==, tableContent=null), ArticleFig(id=1320037431324299721, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图10, caption=
不同气嘴收缩段直径下流体迹线, figureFileSmall=LTNhGEzVQ8EPghaZ6GBACQ==, figureFileBig=Xmo5XKY+TYuCW4PaR9l3Fg==, tableContent=null), ArticleFig(id=1320037431408185802, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.11, caption=
Distribution of physical quantities along centerline under different outlet confining pressure conditions, figureFileSmall=N55pPOD4Taqf/d5bqkYo7w==, figureFileBig=xRr33TmUYWWNj/vl4/xebA==, tableContent=null), ArticleFig(id=1320037431492071883, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图11, caption=
不同出口围压条件下中轴线各物理量分布, figureFileSmall=N55pPOD4Taqf/d5bqkYo7w==, figureFileBig=xRr33TmUYWWNj/vl4/xebA==, tableContent=null), ArticleFig(id=1320037431575957964, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Fig.12, caption=
Variation relationship of flow parameters under different outlet confining pressure conditions, figureFileSmall=vb4mMh98J4jh7Flk/nMd5w==, figureFileBig=L7FMabjCkYHfLg80I2BXVg==, tableContent=null), ArticleFig(id=1320037431664038349, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=图12, caption=
不同出口围压条件下流动参数变化关系, figureFileSmall=vb4mMh98J4jh7Flk/nMd5w==, figureFileBig=L7FMabjCkYHfLg80I2BXVg==, tableContent=null), ArticleFig(id=1320037431743730126, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Tab.1, caption=
Comparison results between experimental testing and numerical simulation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组分 | 流量/(kg⋅min-1) | 节流压差/MPa | 相对误差/% |
|---|
| 实验 | 模拟 |
|---|
| CO2 | 0.31 | 0.17 | 0.16 | 5.88 |
| N2 | 0.48 | 0.19 | 0.18 | 5.26 |
| 混合 | 0.76 | 0.33 | 0.31 | 6.06 |
), ArticleFig(id=1320037431827616207, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=表1, caption=
实验测试与数值模拟对比结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组分 | 流量/(kg⋅min-1) | 节流压差/MPa | 相对误差/% |
|---|
| 实验 | 模拟 |
|---|
| CO2 | 0.31 | 0.17 | 0.16 | 5.88 |
| N2 | 0.48 | 0.19 | 0.18 | 5.26 |
| 混合 | 0.76 | 0.33 | 0.31 | 6.06 |
), ArticleFig(id=1320037431903113680, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Tab.2, caption=
Numerical simulation scheme
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | CO2∶N2∶CH4 体积比 | CO2∶N2∶CH4 质量比 | 收缩段直径/mm | 围压/MPa |
|---|
| 1 | 1∶0∶0 | 1∶0∶0 | 2.5 | 20 |
| 2 | 0.5∶0.2∶0.3 | 0.68∶0.17∶0.15 | 2.5 | 20 |
| 3 | 0.5∶0.3∶0.2 | 0.65∶0.25∶0.10 | 2.5 | 20 |
| 4 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 20 |
| 5 | 0.2∶0.4∶0.4 | 0.34∶0.42∶0.24 | 2.5 | 20 |
| 6 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 4.5 | 20 |
| 7 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 6.5 | 20 |
| 8 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 8.5 | 20 |
| 9 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 15 |
| 10 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 25 |
| 11 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 30 |
| 12 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 35 |
| 13 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 40 |
), ArticleFig(id=1320037431974416849, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=表2, caption=
数值模拟方案
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | CO2∶N2∶CH4 体积比 | CO2∶N2∶CH4 质量比 | 收缩段直径/mm | 围压/MPa |
|---|
| 1 | 1∶0∶0 | 1∶0∶0 | 2.5 | 20 |
| 2 | 0.5∶0.2∶0.3 | 0.68∶0.17∶0.15 | 2.5 | 20 |
| 3 | 0.5∶0.3∶0.2 | 0.65∶0.25∶0.10 | 2.5 | 20 |
| 4 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 20 |
| 5 | 0.2∶0.4∶0.4 | 0.34∶0.42∶0.24 | 2.5 | 20 |
| 6 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 4.5 | 20 |
| 7 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 6.5 | 20 |
| 8 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 8.5 | 20 |
| 9 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 15 |
| 10 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 25 |
| 11 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 30 |
| 12 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 35 |
| 13 | 0.4∶0.3∶0.3 | 0.57∶0.27∶0.16 | 2.5 | 40 |
), ArticleFig(id=1320037432049914322, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=EN, label=Tab.3, caption=
Calculation results of fluid thermophysical properties under different inlet pressure conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
| 压力/MPa | 密度/(kg⋅m-3) | 比热容/(kJ⋅kg-1⋅K-1) | 导热系数/(mW⋅m-1⋅K-1) | 黏度/(mPa⋅s) |
|---|
| 39.45 | 854.27 | 1.86 | 100.25 | 0.081 8 |
| 30.10 | 401.94 | 1.95 | 63.87 | 0.034 4 |
| 30.32 | 405.60 | 1.82 | 60.82 | 0.034 3 |
| 28.47 | 339.92 | 1.86 | 58.14 | 0.030 6 |
| 25.92 | 247.35 | 1.83 | 54.39 | 0.025 7 |
), ArticleFig(id=1320037432125411795, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037418678473049, language=CN, label=表3, caption=
不同入口压力条件下流体热物性计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 压力/MPa | 密度/(kg⋅m-3) | 比热容/(kJ⋅kg-1⋅K-1) | 导热系数/(mW⋅m-1⋅K-1) | 黏度/(mPa⋅s) |
|---|
| 39.45 | 854.27 | 1.86 | 100.25 | 0.081 8 |
| 30.10 | 401.94 | 1.95 | 63.87 | 0.034 4 |
| 30.32 | 405.60 | 1.82 | 60.82 | 0.034 3 |
| 28.47 | 339.92 | 1.86 | 58.14 | 0.030 6 |
| 25.92 | 247.35 | 1.83 | 54.39 | 0.025 7 |
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