Article(id=1320037436680425972, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037383882519364, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.12.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1742745600000, receivedDateStr=2025-03-24, revisedDate=1760976000000, revisedDateStr=2025-10-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1792651050013, onlineDateStr=2026-10-22, pubDate=1767110400000, pubDateStr=2025-12-31, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792651050013, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792651050013, creator=13701087609, updateTime=1792651050013, 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=38, endPage=46, ext={EN=ArticleExt(id=1320037436869169653, articleId=1320037436680425972, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Study on noise reduction mechanism of aerodynamic noise in axial flow fans based on multiple combined noise reduction structures, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address the aerodynamic noise issue in axial flow fans caused by tip leakage flow,a noise reduction structure combining “bionic serrations-suction surface tip winglet modification-multi‑scheme grooving” was designed.Using the SBES(stress‑blended eddy simulation) turbulence model coupled with the FW-H acoustic analogy method,the noise reduction mechanisms of each structure were analyzed.The results show that the combination of a biomimetic wavy leading‑edge serration with a suction side tip winglet modification can reduce the overall sound pressure level by 4.5dB.Further combining this with a tip longitudinal airfoil ribbed slot structure leads to a reduction of 7.9dB in the overall sound pressure level.The biomimetic leading‑edge serration-suction side tip winglet modification reduces the discrete noise peaks by disrupting the periodic shedding of leakage vortices,optimizes the flow uniformity at the tip,and suppresses abrupt local pressure fluctuations.The combined structure of biomimetic leading‑edge serrations,tip longitudinal airfoil ribbed slots,and suction side tip winglets accelerates vortex energy dissipation by dynamically dividing the leakage flow paths.In experiments,the prototype demonstrated significant noise reduction effects,and the observed phenomenon of “low‑frequency noise energy shifting to high frequencies” was consistent with the numerical simulation results,verifying the reliability of the proposed method.This study provides a reference for the optimization design of low‑noise axial flow fan tips.
, authors=Yichen YE
1, Yuan HE
2, Zhunyuan SHAO
2, Canxing WANG
1, 2, authorsList=Yichen YE, Yuan HE, Zhunyuan SHAO, Canxing WANG, authorCompany=null, correspAuthors=null, 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=1320037440472076814, articleId=1320037436680425972, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=基于多种组合降噪结构对轴流风机气动噪声的降噪机理研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
针对轴流风机因叶尖泄漏流导致的气动噪声问题,设计“仿生锯齿-吸力面叶顶小翼改型-多方案开槽”降噪结构,采用应力混合涡模拟(SBES)湍流模型与FW-H声类比方法耦合,分析各结构的降噪机理。结果表明:仿生波浪前缘锯齿与吸力面小翼改型组合可使总声压级降低4.5dB;在此基础上,结合叶顶纵向翼型肋板槽结构后,总声压级降低了7.9dB;叶顶前缘仿生锯齿-吸力面小翼改型通过扰动泄漏涡的周期性脱落,降低了离散噪声峰值,优化了叶顶流动均匀性,抑制了局部压力脉动的突变;叶顶前缘仿生锯齿-叶顶纵向翼型槽肋板-吸力面叶顶小翼组合结构则通过动态分割泄漏流路径,加速了涡能量耗散。试验中样机降噪效果显著,观察到的“低频噪声能量向高频转移”现象与数值模拟结果一致,验证了文中方法的可靠性。研究可为低噪声轴流风机叶顶优化设计提供参考。
, authors=叶一辰
1, 何源
2, 邵准远
2, 王灿星
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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=gdyHcd4Iq6lKg7A8DTV/rg==, magXml=mb3X68YQuLZtubW02UqU7g==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=zeV5eoavcvPQkcz3eny5/A==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=k1Gg3vVx+DGMUUjmq5sZ/A==, mapNumber=null, fund=null)}, authors=[Author(id=1320037440933450262, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, orderNo=0, 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=1320037441013142040, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, authorId=1320037440933450262, language=EN, stringName=Yichen YE, firstName=Yichen, middleName=null, lastName=YE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Fan computational domain, figureFileSmall=R8WA1Syd1/238EYiK73g2g==, figureFileBig=escJOzTwbcxEgfIKNJPiGw==, tableContent=null), ArticleFig(id=1320037445094199869, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图3, caption=
风机计算域, figureFileSmall=R8WA1Syd1/238EYiK73g2g==, figureFileBig=escJOzTwbcxEgfIKNJPiGw==, tableContent=null), ArticleFig(id=1320037445178085950, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.4, caption=
Comparison of LES and SBES computational results, figureFileSmall=c5C96zZQJpiboGZapqCbNQ==, figureFileBig=pc9oCJ9bSEixCYfsT0/3RQ==, tableContent=null), ArticleFig(id=1320037445241000511, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图4, caption=
LES与SBES计算结果对比, figureFileSmall=c5C96zZQJpiboGZapqCbNQ==, figureFileBig=pc9oCJ9bSEixCYfsT0/3RQ==, tableContent=null), ArticleFig(id=1320037445324886592, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.5, caption=
Unsteady computation flow fluctuation, figureFileSmall=UXpjfOVvlHvcRbN5ki68bA==, figureFileBig=ZSW05aRQkO6AtFKXUBEgNQ==, tableContent=null), ArticleFig(id=1320037445383606849, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图5, caption=
非定常计算流量波动, figureFileSmall=UXpjfOVvlHvcRbN5ki68bA==, figureFileBig=ZSW05aRQkO6AtFKXUBEgNQ==, tableContent=null), ArticleFig(id=1320037445463298626, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.6, caption=
Wavy protuberances on insect wing surface, figureFileSmall=qWComoVxsmfWJoi/on362w==, figureFileBig=drMgTiTICBn6dc0sACdu7g==, tableContent=null), ArticleFig(id=1320037445547184707, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图6, caption=
昆虫翅膀表面的波浪状凸起, figureFileSmall=qWComoVxsmfWJoi/on362w==, figureFileBig=drMgTiTICBn6dc0sACdu7g==, tableContent=null), ArticleFig(id=1320037445631070788, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.7, caption=
Schematic of suction side tip winglet modification, figureFileSmall=4kupeHEw+QGLgbR0CGPxRg==, figureFileBig=MFamhjcxm9hUrt8cHk6Ftw==, tableContent=null), ArticleFig(id=1320037445702373957, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图7, caption=
吸力面叶顶小翼改型示意, figureFileSmall=4kupeHEw+QGLgbR0CGPxRg==, figureFileBig=MFamhjcxm9hUrt8cHk6Ftw==, tableContent=null), ArticleFig(id=1320037445765288518, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.8, caption=
Comparison between prototype and combined biomimetic leading‑edge serrations with suction side tip winglet modification, figureFileSmall=rpja7Jp1CLLdevBd8JcX2w==, figureFileBig=aEcoucrWWkLgeLIgTPUsoA==, tableContent=null), ArticleFig(id=1320037445853368903, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图8, caption=
原型机与叶顶前缘仿生锯齿-吸力面叶顶小翼改型组合对比(a)原型机 (b)方案1结构
, figureFileSmall=rpja7Jp1CLLdevBd8JcX2w==, figureFileBig=aEcoucrWWkLgeLIgTPUsoA==, tableContent=null), ArticleFig(id=1320037445937254984, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.9, caption=
Rotating domain mesh generation with local refinement at blade tip, figureFileSmall=XK9hdQlRJsK2g/6Ef81tWA==, figureFileBig=TBqflmIz37LKbWrSg8KtiQ==, tableContent=null), ArticleFig(id=1320037446012752457, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图9, caption=
旋转域网格划分及叶顶局部加密示意, figureFileSmall=XK9hdQlRJsK2g/6Ef81tWA==, figureFileBig=TBqflmIz37LKbWrSg8KtiQ==, tableContent=null), ArticleFig(id=1320037446075667018, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.10, caption=
Noise spectrum comparison between the prototype and Scheme 1, figureFileSmall=ATFYpas5PJsMirG9uQhJsw==, figureFileBig=itebpvsiD0uaQ1ZCVOylPg==, tableContent=null), ArticleFig(id=1320037447728222795, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图10, caption=
原型与方案1噪声频谱对比, figureFileSmall=ATFYpas5PJsMirG9uQhJsw==, figureFileBig=itebpvsiD0uaQ1ZCVOylPg==, tableContent=null), ArticleFig(id=1320037447820497484, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=EN, label=Fig.11, caption=
Comparison of time‑averaged surface acoustic pressure fluctuation between prototype and biomimetic serration‑tip modification, figureFileSmall=ha+RXkjJZDiMEfdCxWEKjQ==, figureFileBig=jwD7u1Xq5VUBihgPUy73Zw==, tableContent=null), ArticleFig(id=1320037447883412045, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图11, caption=
原型和仿生锯齿-叶顶改型表面声压脉动时均值对比(a)原型 (b)仿生锯齿-叶顶改型
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Comparison of vortex structures on isosurfaces between prototype and case 1(Q=2×106 s-2), figureFileSmall=V3HqehQHwuOoBwhv/Q/fEQ==, figureFileBig=xlWtuEK0ZRwe/+5QiD60AQ==, tableContent=null), ArticleFig(id=1320037448021824079, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037436680425972, language=CN, label=图12, caption=
原型与方案1等值面的涡结构(Q=2×106 s-2), figureFileSmall=V3HqehQHwuOoBwhv/Q/fEQ==, figureFileBig=xlWtuEK0ZRwe/+5QiD60AQ==, tableContent=null)], attaches=null, journal=Journal(id=1316780368948461702, delFlag=0, nameCn=流体机械, nameEn=Fluid Machinery, nameHistory1=null, nameHistory2=null, issn=1005-0329, eissn=null, cn=34-1144/TH, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=T/yG2istNFJxG1qx0cqDTw==, journalPrice=null, startedYear=null, abbrevIsoEn=Fluid Machinery, journalRemark=null, publicationField=null, createdTime=1791874504560, updatedTime=1791874868033, createdBy=18614031015, updatedBy=13701087609, firstLetterCn=L, firstLetterEn=L, 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