Flow separation control on a race car wing with vortex gnerators in ground effect

Yuichi Kuya, Kenji Takeda, Xin Zhang, Scott Beeton, Ted Pandaleon

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Flow separation control using vortex generators on an inverted wing in ground effect is experimentally investigated, and its performance is characterized in terms of forces and pressure distributions over a range of incidence and ride height.Counter-rotating and co-rotating rectangular-vane type vortex generators are tested on the suction surface of the wing.The effect of device height and spacing is investigated.The counter-rotating sub-boundary layer vortex generators and counter-rotating large-scale vortex generators on the wing deliver 23% and 10% improvements in the maximum downforce, respectively, compared with the clean wing, at an incidence of one degree, and delay the onset of the downforce reduction phenomenon.The counter-rotating sub-boundary layer vortex generators exhibit up to 26% improvement in downforce and 10% improvement in aerodynamic efficiency at low ride heights.Chordwise pressure measurement confirms that both counter-rotating vortex generator configurations suppress flow separation, while the corotating vortex generators exhibit negligible effectiveness.This work shows that a use of vortex generators, notably of the counter-rotating sub-boundary layer vortex generator type, can be effective at controlling flow separation, with a resultant improvement in downforce for relatively low drag penalty.

本文言語English
ページ(範囲)1211021-1211028
ページ数8
ジャーナルJournal of Fluids Engineering, Transactions of the ASME
131
12
DOI
出版ステータスPublished - 2009 12月
外部発表はい

ASJC Scopus subject areas

  • 機械工学

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