Article(id=1309639548422938659, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639547655385469, articleNumber=null, orderNo=null, doi=10.19822/j.cnki.1671-6329.20250226, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790172000270, onlineDateStr=2026-09-23, pubDate=1777910400000, pubDateStr=2026-05-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790172000270, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790172000270, creator=13701087609, updateTime=1790172000270, updator=13701087609, issue=Issue{id=1309639547655385469, tenantId=1146029695717560320, journalId=1189645257101713411, year='2026', volume='', issue='5', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='1777910400000', pubDateStr='2026-05-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790172000087, creator='13701087609', updateTime=1790233756679, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309898573630763784, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639547655385469, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309898573630763785, tenantId=1146029695717560320, journalId=1189645257101713411, issueId=1309639547655385469, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=53, endPage=62, ext={EN=ArticleExt(id=1309639549052084260, articleId=1309639548422938659, tenantId=1146029695717560320, journalId=1189645257101713411, language=EN, title=An Experimental Investigation on Drag Reduction by V-Shaped Stream-Wise Grooves on DrivAer Model Surface, columnId=1309639548381000062, journalTitle=Automotive Digest, columnName=Special Topic on Automotive Intelligent Cockpit Technology, runingTitle=null, highlight=null, articleAbstract=
To optimize the low-drag aerodynamic configurations for new energy vehicles, flow control drag reduction methods are adopted into the low-drag design of new energy vehicles. An experimental investigation is conducted on the drag reduction effect of V-shaped streamwise grooves. Tests are performed in a low-speed recirculating wind tunnel using a DrivAer sedan model with both smooth and V-groove surfaces. Measurements include drag force, wake turbulence intensity, and vortex structures. The results show that within the Reynolds number (Re) range of 6×10⁵ to 3×10⁶, the drag coefficient decreases with increasing Re, and the V-groove surface exhibits a significant drag reduction effect. At Re=3×10⁶, the drag coefficient decreases by 0.003. The underlying mechanism is attributed to reduced wake turbulence intensity and smaller vortex scales, which aligns with turbulent drag reduction theory. These findings confirm the engineering applicability of V-shaped streamwise grooves and provide a new perspective for the low-drag aerodynamic design of new energy vehicles.
, authors=Feng Zhao, Huilin Zhang, Zihai Geng, Songqi Li, Yuting Chen, Shasha Niu, authorsList=Feng Zhao, Huilin Zhang, Zihai Geng, Songqi Li, Yuting Chen, Shasha Niu, authorCompany=null, correspAuthors=Zihai Geng, 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=1309639549316325413, articleId=1309639548422938659, tenantId=1146029695717560320, journalId=1189645257101713411, language=CN, title=DrivAer轿车表面V型流向沟槽减阻方法的试验研究, columnId=1309639548540383616, journalTitle=汽车文摘, columnName=汽车智能座舱技术专题, runingTitle=null, highlight=null, articleAbstract=
为了优化新能源汽车气动构型低风阻技术,将流动控制减阻方法引入新能源车低风阻设计中,针对V型流向沟槽减阻方法开展了试验研究。在低速回流风洞中,对光滑表面与V型沟槽表面的DrivAer轿车模型分别进行了阻力、尾流湍流度与旋涡结构的测量。结果表明:当Re处于6×10⁵~3×10⁶范围内,阻力系数随雷诺数增大而降低,V型流向沟槽具有显著减阻效果;当Re为3×10⁶时,阻力系数降低0.003,其作用机理体现为尾流湍流度下降与旋涡结构尺度减小,与湍流减阻理论一致,证实了V型流向沟槽在工程应用中的减阻价值,为新能源汽车的低风阻气动设计提供了新思路。
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