Article(id=1319293619505320363, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293461287780384, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.10.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1741017600000, receivedDateStr=2025-03-04, revisedDate=1748275200000, revisedDateStr=2025-05-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473710180, onlineDateStr=2026-10-20, pubDate=1761840000000, pubDateStr=2025-10-31, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473710180, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473710180, creator=13701087609, updateTime=1792473710180, updator=13701087609, issue=Issue{id=1319293461287780384, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='10', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1761840000000', pubDateStr='2025-10-31', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473672458, creator='13701087609', updateTime=1792473672458, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=35, endPage=45, ext={EN=ArticleExt(id=1319293619668898220, articleId=1319293619505320363, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Study on flow characteristics and energy loss mechanism of electric fan for vacuum cleaner, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to explore the energy conversion characteristics of the vacuum cleaner fan,the full‑flow field numerical simulation of the fan flow field under different working conditions was carried out to analyze the flow characteristics.After verification by performance tests,the distribution of the local entropy production rate of the impeller was analyzed based on the entropy production theory.The results indicate that there is an obvious flow impingement at the blade inlet.At the impeller outlet,the mixing of wake and jet increases the velocity gradient and forms a jet wake structure.As the flow rate decreases,large‑scale backflow occurs inside the impeller.Local entropy production is the main factor affecting the energy consumption of the fan.Under the design conditions,the proportion of local entropy production is 59.06%,and the high entropy production area is mainly concentrated at the blade inlet,the suction surface of the blade leading edge and the blade outlet trailing edge.By analyzing the distribution of secondary flow in different annular sections of the impeller,it is found that the secondary flow at the impeller inlet becomes more obvious as the flow rate increases,and the high entropy production areas mostly appear in the regions where secondary flow is generated,indicating that secondary flow is an important factor causing energy loss.
, authors=Wenjing LIU
1, Jianping YUAN
1, Renzhi HE
2, Peng WANG
1, Qiaorui SI
1, authorsList=Wenjing LIU, Jianping YUAN, Renzhi HE, Peng WANG, Qiaorui SI, authorCompany=null, correspAuthors=Qiaorui SI, 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=1319293624098083277, articleId=1319293619505320363, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=吸尘器电风机流动特性及能量损失机理研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
为探究吸尘器电风机的能量转换特性,开展了不同工况下风机流场的全流域数值模拟,以进行流动特性分析,经性能测试验证后,基于熵产理论分析了叶轮的局部熵产率的分布情况。研究结果表明:叶片进口处出现明显的流动冲击,在叶轮出口处,尾流和射流混合导致速度梯度增大并形成射流尾迹流结构。随着流量减小,叶轮内部伴随着大尺度的回流现象;局部熵产是影响风机能耗的主要因素,在设计工况下,局部熵产占比为59.06%,高熵产区域主要集中在叶片的进口、叶片前缘吸力面和叶片出口尾缘处;通过分析叶轮不同环面的二次流分布情况,发现随着流量的增大,叶轮进口处的二次涡流更加明显,且高熵产区域大多出现在二次流产生的区域,说明二次涡流是引起能量损失的重要因素。
, authors=刘文静
1, 袁建平
1, 何仁智
2, 王鹏
1, 司乔瑞
1, authorsList=刘文静, 袁建平, 何仁智, 王鹏, 司乔瑞, authorCompany=null, correspAuthors=司乔瑞, authorNote=
, correspAuthorsNote=
司乔瑞(1986),男,研究员,博士,主要从事旋转机械流动诱导振动噪声工作,通信地址:212013江苏省镇江市京口区学府路301号江苏大学流体机械工程技术研究中心,E-mail:
siqiaorui@ujs.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=OfTTnuQksM/UB5HngSrXUw==, magXml=AqhCvR3mkkKlFRp0HgeMyA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=pAh2ztnjVJaXS5+4bkKI1g==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=C6nV0tW0Q5Na5TwXx3TNpg==, mapNumber=null, fund=null)}, authors=[Author(id=1319293624546873813, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=17340201505@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293624634954199, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, authorId=1319293624546873813, language=EN, stringName=Wenjing LIU, firstName=Wenjing, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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刘文静(1999),女,硕士研究生,主要从事流体机械内流特性研究工作,E-mail:17340201505@163.com。
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Model of a vacuum cleaner centrifugal fan and a calculated fluid domain, figureFileSmall=gf+cSjGk18nXCxw99bE+Eg==, figureFileBig=pAh2ztnjVJaXS5+4bkKI1g==, tableContent=null), ArticleFig(id=1319293628124615160, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图1, caption=
吸尘器电风机模型及计算流体域(a)吸尘器工作示意 (b)模型结构 (c)流体域
, figureFileSmall=gf+cSjGk18nXCxw99bE+Eg==, figureFileBig=pAh2ztnjVJaXS5+4bkKI1g==, tableContent=null), ArticleFig(id=1319293628313358841, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.2, caption=
Vacuum degree of centrifugal fanwith different mesh numbers, figureFileSmall=z7D4S+IoYhW4ajky2mWWaQ==, figureFileBig=meJocxKiojUkbFnTdxXHpg==, tableContent=null), ArticleFig(id=1319293628376273402, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图2, caption=
离心风机不同网格数下的真空度, figureFileSmall=z7D4S+IoYhW4ajky2mWWaQ==, figureFileBig=meJocxKiojUkbFnTdxXHpg==, tableContent=null), ArticleFig(id=1319293628443382267, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.3, caption=
Compute domain meshing and y+ distribution, figureFileSmall=v1YCQVqYgSIMF6Cmh2ud1Q==, figureFileBig=bnBQ7wppcDAnMJ+VJn+2Eg==, tableContent=null), ArticleFig(id=1319293628497908220, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图3, caption=
计算域网格划分及y+分布, figureFileSmall=v1YCQVqYgSIMF6Cmh2ud1Q==, figureFileBig=bnBQ7wppcDAnMJ+VJn+2Eg==, tableContent=null), ArticleFig(id=1319293628565017085, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.4, caption=
Test device for vacuum cleaner electric blower, figureFileSmall=D1ZwQBg1+ozstAaftj8E4Q==, figureFileBig=mMTIYng1lLvjKNstogkG7Q==, tableContent=null), ArticleFig(id=1319293628653097470, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图4, caption=
吸尘器电风机试验装置, figureFileSmall=D1ZwQBg1+ozstAaftj8E4Q==, figureFileBig=mMTIYng1lLvjKNstogkG7Q==, tableContent=null), ArticleFig(id=1319293628711817727, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.5, caption=
Comparison between numerical simulation results and experimental results, figureFileSmall=p94HHONZkTz43TPRr5Cz5w==, figureFileBig=ocL4Cy0DtLosleODTZC7Aw==, tableContent=null), ArticleFig(id=1319293628783120896, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图5, caption=
数值模拟结果和试验结果对比, figureFileSmall=p94HHONZkTz43TPRr5Cz5w==, figureFileBig=ocL4Cy0DtLosleODTZC7Aw==, tableContent=null), ArticleFig(id=1319293628850229761, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.6, caption=
Definition of each surface in the impeller of the centrifugal fan, figureFileSmall=wgcw6sTDcp87aXM3aCB7yA==, figureFileBig=gDPCjBBRF7c1KDVGKw+uTA==, tableContent=null), ArticleFig(id=1319293628921532930, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图6, caption=
吸尘器电风机叶轮内部各表面定义, figureFileSmall=wgcw6sTDcp87aXM3aCB7yA==, figureFileBig=gDPCjBBRF7c1KDVGKw+uTA==, tableContent=null), ArticleFig(id=1319293628988641795, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.7, caption=
Static pressure distribution in the middle of the impeller under different flows, figureFileSmall=aVWdfVW0iBsJgJlzxAWbxA==, figureFileBig=mFbbx2/l/4R8v6mK3bB5aw==, tableContent=null), ArticleFig(id=1319293629059944964, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图7, caption=
叶轮中间截面不同工况下静压分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=aVWdfVW0iBsJgJlzxAWbxA==, figureFileBig=mFbbx2/l/4R8v6mK3bB5aw==, tableContent=null), ArticleFig(id=1319293629127053829, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.8, caption=
Pressure distribution on the blade surface under different flows, figureFileSmall=nAlMSVVxCzBY13Qo44p3xw==, figureFileBig=sAGq+33/nq5YA+/O6EmvnA==, tableContent=null), ArticleFig(id=1319293629206745606, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图8, caption=
不同工况下叶片表面压力分布(a)Span=0.2(b)Span=0.5(c)Span=0.8
, figureFileSmall=nAlMSVVxCzBY13Qo44p3xw==, figureFileBig=sAGq+33/nq5YA+/O6EmvnA==, tableContent=null), ArticleFig(id=1319293629278048775, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.9, caption=
Relative velocity contour of the middle surface of the impeller and its streamline, figureFileSmall=sE/1Sp22v0S2nts6ACOSZA==, figureFileBig=oJ+LNpQqFO/jIhiAWq/REQ==, tableContent=null), ArticleFig(id=1319293629353546248, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图9, caption=
叶轮中间截面相对速度云图及其流线(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=sE/1Sp22v0S2nts6ACOSZA==, figureFileBig=oJ+LNpQqFO/jIhiAWq/REQ==, tableContent=null), ArticleFig(id=1319293629412266505, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.10, caption=
Circumferential velocity distribution at different streamline positions under different flows, figureFileSmall=EA3Lr7sdazu16HgmDK6SMg==, figureFileBig=/Nxbyb9/2kMyMsyJywVzKg==, tableContent=null), ArticleFig(id=1319293629487763978, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图10, caption=
不同工况下不同流线位置处周向速度分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=EA3Lr7sdazu16HgmDK6SMg==, figureFileBig=/Nxbyb9/2kMyMsyJywVzKg==, tableContent=null), ArticleFig(id=1319293631232594443, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.11, caption=
Comparison of the relative velocity and radial velocity of the impeller TS2, figureFileSmall=UqaLHB9S/eNBtdTJRphCFw==, figureFileBig=YYyac/2Lk6/MoJMuYQECCg==, tableContent=null), ArticleFig(id=1319293631333257740, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图11, caption=
叶轮TS2面相对速度对比和径向速度对比, figureFileSmall=UqaLHB9S/eNBtdTJRphCFw==, figureFileBig=YYyac/2Lk6/MoJMuYQECCg==, tableContent=null), ArticleFig(id=1319293631400366605, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.12, caption=
Distribution of entropy production of centrifugal fans under different flows, figureFileSmall=mLJVAj+h/Pw0uzZMMYs/0g==, figureFileBig=PCs0hgmtWRifRO0tn+7swA==, tableContent=null), ArticleFig(id=1319293631505224206, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图12, caption=
离心风机不同工况下熵产分布, figureFileSmall=mLJVAj+h/Pw0uzZMMYs/0g==, figureFileBig=PCs0hgmtWRifRO0tn+7swA==, tableContent=null), ArticleFig(id=1319293631576527375, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.13, caption=
Distribution of local entropy production in the middle of the impeller under different flows, figureFileSmall=Xvbq3P/6jFALl54ZXs5JUg==, figureFileBig=r4u4KFnPjk3HYu+YqVDb1A==, tableContent=null), ArticleFig(id=1319293631677190672, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图13, caption=
叶轮中间截面不同工况下局部熵产分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=Xvbq3P/6jFALl54ZXs5JUg==, figureFileBig=r4u4KFnPjk3HYu+YqVDb1A==, tableContent=null), ArticleFig(id=1319293631786242577, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.14, caption=
Distribution of secondary flow at different torus positions of impeller under different flows, figureFileSmall=KhKuXp6IJCuobi5j4ZEJNQ==, figureFileBig=FQ9ffZZ2D3mYktbeIIz1vw==, tableContent=null), ArticleFig(id=1319293631870128658, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图14, caption=
不同工况下叶轮不同环面位置二次流分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=KhKuXp6IJCuobi5j4ZEJNQ==, figureFileBig=FQ9ffZZ2D3mYktbeIIz1vw==, tableContent=null), ArticleFig(id=1319293631983374867, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.15, caption=
Distribution of turbulent kinetic energy at different annular positions of impeller under different flows, figureFileSmall=hL2JPiLR6NLjJ/LEHEJWLg==, figureFileBig=neO0QtPIFlcvug7KB452+g==, tableContent=null), ArticleFig(id=1319293632096621076, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图15, caption=
不同工况下叶轮不同环面位置湍动能分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=hL2JPiLR6NLjJ/LEHEJWLg==, figureFileBig=neO0QtPIFlcvug7KB452+g==, tableContent=null), ArticleFig(id=1319293632176312853, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Fig.16, caption=
Vortex distribution of impeller under different flows, figureFileSmall=j0EcWZiszNyvP6gLCpfjdQ==, figureFileBig=UyDzEhTvCzDZGasdaVHpBw==, tableContent=null), ArticleFig(id=1319293632251810326, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=图16, caption=
不同工况下叶轮涡流分布(a)0.6Qd(b)0.8Qd(c)1.0Qd
, figureFileSmall=j0EcWZiszNyvP6gLCpfjdQ==, figureFileBig=UyDzEhTvCzDZGasdaVHpBw==, tableContent=null), ArticleFig(id=1319293632314724887, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=EN, label=Tab.1, caption=
Key parameters of centrifugal fans
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主要参数 | 参数 |
|---|
| 流量Qd/(dm3·s-1) | 24.698 |
| 进口真空度/kPa | 13.67 |
| 额定转速n/(r·min-1) | 37 400 |
| 叶轮出口直径D2/mm | 87 |
| 叶轮进口直径D1/mm | 31 |
| 叶片宽度b2/mm | 8 |
| 叶轮叶片数 | 7 |
| 导流器叶片数 | 30 |
), ArticleFig(id=1319293632381833752, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293619505320363, language=CN, label=表1, caption=
离心风机相关参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 主要参数 | 参数 |
|---|
| 流量Qd/(dm3·s-1) | 24.698 |
| 进口真空度/kPa | 13.67 |
| 额定转速n/(r·min-1) | 37 400 |
| 叶轮出口直径D2/mm | 87 |
| 叶轮进口直径D1/mm | 31 |
| 叶片宽度b2/mm | 8 |
| 叶轮叶片数 | 7 |
| 导流器叶片数 | 30 |
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