Article(id=1319293054222193513, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293032650887902, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.03.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1726243200000, receivedDateStr=2024-09-14, revisedDate=1733760000000, revisedDateStr=2024-12-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473575405, onlineDateStr=2026-10-20, pubDate=1743264000000, pubDateStr=2025-03-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473575405, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473575405, creator=13701087609, updateTime=1792473575405, updator=13701087609, issue=Issue{id=1319293032650887902, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='3', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1743264000000', pubDateStr='2025-03-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473570263, creator='13701087609', updateTime=1792473570263, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=36, endPage=43, ext={EN=ArticleExt(id=1319293054385771370, articleId=1319293054222193513, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=The influence of the inlet flow field on the performance of the compressor under the elbow intake mode, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problem that the inlet flow field of a centrifugal compressor distorts under the elbow intake mode,which in turn has a significant impact on the performance of the compressor,through the self‑designed compressor test device,combined with characteristic tests and PIV flow field measurements,the correlation mechanism between the performance of the compressor and the flow field structure under the elbow intake is quantitatively revealed. The results show that,compared with the straight pipe intake,the elbow intake causes the pressure ratio and efficiency of the centrifugal compressor at the highest efficiency point to decrease by up to 2.7% and 9.8% respectively,indicating that the elbow structure significantly deteriorates the performance of the compressor. PIV testing revealed the presence of a reverse rotating twin vortex structure in the inlet section,whose strength is positively correlated with compressor flow rate and speed; Based on the analysis of the velocity uniformity index of the inlet pipe path cross-section,the interface velocity uniformity is good,and the radial velocity uniformity has a weak influence (the absolute value of γ is less than 0.2). The asymmetry of the circumferential velocity distribution is strongly negatively correlated with the pressure ratio (γ=-0.976) and efficiency (γ=-0.923),indicating that circumferential distortion is the dominant factor in performance degradation. The research results can provide a reference for the performance improvement of centrifugal compressors.
, authors=Zongwu HU
1, 2, Ning HUANG
1, Yang ZHAO
3, Xing LI
1, Guanyan CHEN
1, Jie ZHANG
1, authorsList=Zongwu HU, Ning HUANG, Yang ZHAO, Xing LI, Guanyan CHEN, Jie ZHANG, authorCompany=null, correspAuthors=Jie ZHANG, 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=1319293058269696893, articleId=1319293054222193513, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=弯管进气时进口流场对压气机性能的影响, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
针对弯管进气方式下离心压气机进口流场发生畸变,进而对压气机性能产生重要影响的问题,通过自主设计的压气机试验装置,结合特性试验与PIV流场测量,定量揭示了弯管进气下压气机性能与流场结构的关联机制。结果表明,相较于直管进气,弯管进气导致离心压气机在最高效率点的压比和效率最高分别下降2.7%和9.8%,表明弯管结构显著劣化压气机性能;PIV测试揭示进口截面存在反向旋转双涡结构,其强度与压气机流量和转速呈正相关;基于对进口管路径向截面的速度均匀性指数分析,界面速度均匀性较好,径向速度均匀性影响较弱(γ的绝对值小于0.2),而周向速度分布的非对称性与压比(γ=-0.976)、效率(γ=-0.923)呈强负相关,表明周向畸变是性能劣化的主导因素。研究结果可为离心压气机的性能提升提供参考。
, authors=胡宗武
1, 2, 黄宁
1, 赵洋
3, 李星
1, 陈冠言
1, 张洁
1, authorsList=胡宗武, 黄宁, 赵洋, 李星, 陈冠言, 张洁, authorCompany=null, correspAuthors=张洁, authorNote=
, correspAuthorsNote=
张洁(1983),男,博士,教授,博士生导师,主要从事气固两相流及环境流体力学等相关研究,通信地址:730000甘肃省兰州市天水南路222号兰州大学土木与力学学院,E-mail:
zhang-j@lzu.edu.cn, 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=1GXFhJCTD0DcgnZe20OcrQ==, magXml=jM1iMPy0b5VjbpAkzwUk5w==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=+XlEuzX+KeHBQMP8mhjA6g==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=SlKhwZav8WsdcAfQ5vz7vA==, mapNumber=null, fund=null)}, authors=[Author(id=1319293059314078600, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=huzw@lut.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293059511210891, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, authorId=1319293059314078600, language=EN, stringName=Zongwu HU, firstName=Zongwu, middleName=null, lastName=HU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China
2College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293059624457100, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, authorId=1319293059314078600, language=CN, stringName=胡宗武, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1兰州大学 土木工程与力学学院,兰州 730000
2兰州理工大学 石油化工学院,兰州 730050, bio={"content":"
胡宗武(1989),男,博士研究生,主要从事多相流冲蚀、腐蚀及防护等相关研究,E-mail:huzw@lut.edu.cn。
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胡宗武(1989),男,博士研究生,主要从事多相流冲蚀、腐蚀及防护等相关研究,E-mail:huzw@lut.edu.cn。
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Schematic diagram of experimental setup, figureFileSmall=raEpZK+iHmA2HrJ+tStrmg==, figureFileBig=+XlEuzX+KeHBQMP8mhjA6g==, tableContent=null), ArticleFig(id=1319293064510821298, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图1, caption=
试验装置示意, figureFileSmall=raEpZK+iHmA2HrJ+tStrmg==, figureFileBig=+XlEuzX+KeHBQMP8mhjA6g==, tableContent=null), ArticleFig(id=1319293064888308659, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.2, caption=
Schematic diagram of centrifugal compressor and measuring points distribution, figureFileSmall=VRYXMq/hP0gVgpUNkCxaLQ==, figureFileBig=dUXyN+37ro+az5Zb17NfXw==, tableContent=null), ArticleFig(id=1319293064955417524, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图2, caption=
离心压气机示意及其测点分布(a)径向截面示意 (b)进口静压测点分布
, figureFileSmall=VRYXMq/hP0gVgpUNkCxaLQ==, figureFileBig=dUXyN+37ro+az5Zb17NfXw==, tableContent=null), ArticleFig(id=1319293065043497909, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.3, caption=
PIV test diagram of inlet pipeline flow field, figureFileSmall=CpdMo8cv9rL0lGee9FtroQ==, figureFileBig=DNtPHN/1jfPi9iqfIwMIdw==, tableContent=null), ArticleFig(id=1319293065106412470, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图3, caption=
进口管路流场PIV测试, figureFileSmall=CpdMo8cv9rL0lGee9FtroQ==, figureFileBig=DNtPHN/1jfPi9iqfIwMIdw==, tableContent=null), ArticleFig(id=1319293065186104247, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.4, caption=
The variation in pressure ratio and efficiency at the peak efficiency point under different rotational speeds with elbow intake, figureFileSmall=wAElecydhssQRovOnXe9BQ==, figureFileBig=0pQGoAibKQW74Uj+Klubrw==, tableContent=null), ArticleFig(id=1319293065269990328, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图4, caption=
弯管进气时不同转速下最高效率点压比及效率变化率, figureFileSmall=wAElecydhssQRovOnXe9BQ==, figureFileBig=0pQGoAibKQW74Uj+Klubrw==, tableContent=null), ArticleFig(id=1319293065328710585, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.5, caption=
Velocity vector diagrams of the compressor inlet pipe cross‑section at the choke point,peak efficiency point,and surge point under different rotational speeds, figureFileSmall=S+ChP4X/qrISnD1R0+yARg==, figureFileBig=S7AwKQ3oZAb6+Ry7oChfVw==, tableContent=null), ArticleFig(id=1319293065408402362, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图5, caption=
不同转速下压气机在阻塞点、最高效率点和喘振点进口管路径向截面的速度矢量, figureFileSmall=S+ChP4X/qrISnD1R0+yARg==, figureFileBig=S7AwKQ3oZAb6+Ry7oChfVw==, tableContent=null), ArticleFig(id=1319293065475511227, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.6, caption=
Vorticity distribution of the compressor inlet pipe cross-section at the choke point,peak efficiency point,and surge point under different rotational speeds, figureFileSmall=4OxoXSNpkxAte7kfSJ/CmA==, figureFileBig=BtvB/3rZMihrQ20pVVmbAA==, tableContent=null), ArticleFig(id=1319293065576174524, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图6, caption=
不同转速下压气机在阻塞点、最高效率点和喘振点进口管路径向截面的涡量分布, figureFileSmall=4OxoXSNpkxAte7kfSJ/CmA==, figureFileBig=BtvB/3rZMihrQ20pVVmbAA==, tableContent=null), ArticleFig(id=1319293065655866301, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.7, caption=
Uniformity index of cross‑sectional velocity of radial section velocity at different rotational speeds, figureFileSmall=k9nd6DRTsWzMQmxd5RpNgg==, figureFileBig=lBr5H0IPnaeZeNa+QV/OJQ==, tableContent=null), ArticleFig(id=1319293065718780862, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图7, caption=
不同转速下径向截面的截面速度均匀性指数, figureFileSmall=k9nd6DRTsWzMQmxd5RpNgg==, figureFileBig=lBr5H0IPnaeZeNa+QV/OJQ==, tableContent=null), ArticleFig(id=1319293065811055551, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.8, caption=
Uniformity index of radial velocity radial cross section at different rotational speeds, figureFileSmall=UwXz3H/bqTVZvI1Ky3N6HA==, figureFileBig=4fQRaZctCd97hGe4n5F/uA==, tableContent=null), ArticleFig(id=1319293065903330240, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图8, caption=
不同转速下径向截面的径向速度均匀性指数, figureFileSmall=UwXz3H/bqTVZvI1Ky3N6HA==, figureFileBig=4fQRaZctCd97hGe4n5F/uA==, tableContent=null), ArticleFig(id=1319293065966244801, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Fig.9, caption=
Uniformity index of circumferential velocity radial cross section at different rotational speeds, figureFileSmall=MKSht9ifK3qabo4PihPCkg==, figureFileBig=33zcG3D0X+DbcK4GMhuMnA==, tableContent=null), ArticleFig(id=1319293066033353666, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=图9, caption=
不同转速下径向截面的周向均匀性指数, figureFileSmall=MKSht9ifK3qabo4PihPCkg==, figureFileBig=33zcG3D0X+DbcK4GMhuMnA==, tableContent=null), ArticleFig(id=1319293066096268227, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=EN, label=Tab.1, caption=
Correlation coefficients between homogeneity index and performance change indicators
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相关系数 | 截面流速 均匀性指数 | 径向速度 均匀性指数 | 周向速度 均匀性指数 |
|---|
| 压比变化百分比 | -0.019 | 0.091 | -0.976 |
| 效率变化百分比 | -0.023 | -0.185 | -0.923 |
), ArticleFig(id=1319293066163377092, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293054222193513, language=CN, label=表1, caption=
均匀性指数与性能变化指标的相关系数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相关系数 | 截面流速 均匀性指数 | 径向速度 均匀性指数 | 周向速度 均匀性指数 |
|---|
| 压比变化百分比 | -0.019 | 0.091 | -0.976 |
| 效率变化百分比 | -0.023 | -0.185 | -0.923 |
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