Article(id=1311351193142657123, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1311351152067830064, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2026.20242066, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730649600000, receivedDateStr=2024-11-04, revisedDate=1743091200000, revisedDateStr=2025-03-28, acceptedDate=1744214400000, acceptedDateStr=2025-04-10, onlineDate=1790580088171, onlineDateStr=2026-09-28, pubDate=1769270400000, pubDateStr=2026-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790580088171, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790580088171, creator=13701087609, updateTime=1790580088171, updator=13701087609, issue=Issue{id=1311351152067830064, tenantId=1146029695717560320, journalId=1205116964453384197, year='2026', volume='44', issue='1', pageStart='1', pageEnd='246', issueExtLink='null', onlineDate='null', pubDate='1769270400000', pubDateStr='2026-01-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1790580078378, creator='13701087609', updateTime=1790588459421, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311386304772927717, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1311351152067830064, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311386304772927718, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1311351152067830064, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=73, endPage=77, ext={EN=ArticleExt(id=1311351193318817892, articleId=1311351193142657123, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Analysis of Circumferential Velocity Downstream of Swirl Generators with Different Guide Vane Heights, columnId=null, journalTitle=Water Resources and Power, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the influence of guide vane height on downstream helical flow in a guide-vane swirl generator, numerical simulations and physical experiments were combined. Five swirl generator models with varying guide vane heights were designed to systematically analyze circumferential velocity distribution, streamwise evolution of mean circumferential velocity, and helical flow attenuation characteristics. Results indicate that the downstream circumferential velocity follows a counterclockwise rotational distribution. With increasing guide vane height, the distribution regions of circumferential velocity and angular momentum were observed to expand significantly, resulting in enhanced helical flow intensity. The mean circumferential velocity was found to decay exponentially along the streamwise direction, though its attenuation rate showed minimal dependence on guide vane height. At a fixed downstream cross-section, the mean circumferential velocity increased with guide vane height, but this growth rate decreased progressively. When the height exceeded 35 mm, further increases had negligible effects on velocity enhancement, suggesting optimal swirl generation at 35 mm. These findings provide a theoretical foundation for the structural optimization of guide-vane swirl generators.

, authors=Lin ZHANG, Yong-ye LI, Si-yuan TAO, Song WEI, Ying-han LIU, authorsList=Lin ZHANG, Yong-ye LI, Si-yuan TAO, Song WEI, Ying-han LIU, authorCompany=null, correspAuthors=Yong-ye LI, 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=1311351193641779302, articleId=1311351193142657123, tenantId=1146029695717560320, journalId=1205116964453384197, language=CN, title=不同导叶高度旋流器下游周向流速分析, columnId=1207627662852461193, journalTitle=水电能源科学, columnName=水力学, runingTitle=null, highlight=null, articleAbstract=

为探究导叶片式旋流器中导叶高度对旋流器下游螺旋流的影响,综合运用数值模拟与物理试验相结合的方法,设计了导叶高度梯度变化的五组旋流器模型,重点分析了周向流速分布特征、平均周向流速沿程变化规律以及螺旋流衰减特性。研究结果表明,旋流器下游周向流速呈逆时针旋转分布。随着导叶高度增加,周向流速及动量矩分布区域显著增大,螺旋流强度提升。平均周向流速沿程呈指数衰减,但导叶高度对周向流速衰减速率影响较小。不同导叶高度旋流器在下游同一断面处的平均周向流速,随导叶高度的增大而增大,且增长幅度随导叶高度的增大而减小,当导叶高度大于35 mm时,导叶高度增加对断面平均周向流速增长变得不明显,进而认为导叶高度为35 mm时,旋流器的起旋效果最佳。研究结果为进一步优化导叶片式旋流器的结构提供了一定的理论依据。

, authors=张林, 李永业, 陶思远, 卫松, 刘盈含, authorsList=张林, 李永业, 陶思远, 卫松, 刘盈含, authorCompany=null, correspAuthors=李永业, authorNote=

张林(1999-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

, correspAuthorsNote=
李永业(1976-),男,博士、副教授,研究方向为流体力学及流体机械,E-mail:
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张林(1999-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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张林(1999-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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不同导叶高度旋流器下游周向流速分析
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张林 , 李永业 , 陶思远 , 卫松 , 刘盈含
水电能源科学 | 水力学 2026,44(1): 73-77
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水电能源科学 |水力学 2026 , 44 (1) : 73 -77
不同导叶高度旋流器下游周向流速分析
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张林 , 李永业 , 陶思远, 卫松, 刘盈含
作者信息
  • 太原理工大学水利科学与工程学院,山西 太原 030024
通讯作者:
李永业(1976-),男,博士、副教授,研究方向为流体力学及流体机械,E-mail:
作者简介:

张林(1999-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

Analysis of Circumferential Velocity Downstream of Swirl Generators with Different Guide Vane Heights
Lin ZHANG , Yong-ye LI , Si-yuan TAO, Song WEI, Ying-han LIU
Affiliations
  • College of Hydro Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
出版时间: 2026-01-25 doi: 10.20040/j.cnki.1000-7709.2026.20242066
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为探究导叶片式旋流器中导叶高度对旋流器下游螺旋流的影响,综合运用数值模拟与物理试验相结合的方法,设计了导叶高度梯度变化的五组旋流器模型,重点分析了周向流速分布特征、平均周向流速沿程变化规律以及螺旋流衰减特性。研究结果表明,旋流器下游周向流速呈逆时针旋转分布。随着导叶高度增加,周向流速及动量矩分布区域显著增大,螺旋流强度提升。平均周向流速沿程呈指数衰减,但导叶高度对周向流速衰减速率影响较小。不同导叶高度旋流器在下游同一断面处的平均周向流速,随导叶高度的增大而增大,且增长幅度随导叶高度的增大而减小,当导叶高度大于35 mm时,导叶高度增加对断面平均周向流速增长变得不明显,进而认为导叶高度为35 mm时,旋流器的起旋效果最佳。研究结果为进一步优化导叶片式旋流器的结构提供了一定的理论依据。

螺旋流  /  旋流器  /  周向流速  /  导叶高度

To investigate the influence of guide vane height on downstream helical flow in a guide-vane swirl generator, numerical simulations and physical experiments were combined. Five swirl generator models with varying guide vane heights were designed to systematically analyze circumferential velocity distribution, streamwise evolution of mean circumferential velocity, and helical flow attenuation characteristics. Results indicate that the downstream circumferential velocity follows a counterclockwise rotational distribution. With increasing guide vane height, the distribution regions of circumferential velocity and angular momentum were observed to expand significantly, resulting in enhanced helical flow intensity. The mean circumferential velocity was found to decay exponentially along the streamwise direction, though its attenuation rate showed minimal dependence on guide vane height. At a fixed downstream cross-section, the mean circumferential velocity increased with guide vane height, but this growth rate decreased progressively. When the height exceeded 35 mm, further increases had negligible effects on velocity enhancement, suggesting optimal swirl generation at 35 mm. These findings provide a theoretical foundation for the structural optimization of guide-vane swirl generators.

spiral flow  /  cyclone  /  circumferential flow velocity  /  guide vane height
张林, 李永业, 陶思远, 卫松, 刘盈含. 不同导叶高度旋流器下游周向流速分析. 水电能源科学, 2026 , 44 (1) : 73 -77 . DOI: 10.20040/j.cnki.1000-7709.2026.20242066
Lin ZHANG, Yong-ye LI, Si-yuan TAO, Song WEI, Ying-han LIU. Analysis of Circumferential Velocity Downstream of Swirl Generators with Different Guide Vane Heights[J]. Water Resources and Power, 2026 , 44 (1) : 73 -77 . DOI: 10.20040/j.cnki.1000-7709.2026.20242066
  • 国家自然科学基金面上项目(51179116)
  • 山西省自然科学基金项目(202303021211141)
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2026年第44卷第1期
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doi: 10.20040/j.cnki.1000-7709.2026.20242066
  • 接收时间:2024-11-04
  • 首发时间:2026-09-28
  • 出版时间:2026-01-25
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  • 收稿日期:2024-11-04
  • 修回日期:2025-03-28
  • 录用日期:2025-04-10
基金
国家自然科学基金面上项目(51179116)
山西省自然科学基金项目(202303021211141)
作者信息
    太原理工大学水利科学与工程学院,山西 太原 030024

通讯作者:

李永业(1976-),男,博士、副教授,研究方向为流体力学及流体机械,E-mail:
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https://castjournals.cast.org.cn/joweb/sdnykx/CN/10.20040/j.cnki.1000-7709.2026.20242066
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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