노치-백 自動車의 空氣力學的 臨界 現象에 관한 實驗的 硏究 An experimental study on aerodynamic critical phenomenon of notch-back car

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The aerodynamic critical phenomenon of notch-back type automobile-like bodies was investigated experimentally. The aerodynamic forces were measured for the various bodies of different back-light rake angle at Re=O.8xlO5, I.Ox106 and 1.4xI06. Also, surface flow visuali­zation was effected by the oil mixture. It was found that the critical phenomenon for the notch-back type bodies was milder than for the hatch-back type bodies; the drag vs. slant angle curve for the hotch-back type bodies exihibiting local maximum was much smoother. Surface oil flow visualization revealed that the flow pattern associated with the critical pheno­menon was characterized by the reattachment of the separated flow on the boot. The effect of the forebody on the critical phenomenon was seen to be negligible.
Publisher
한국자동차공학회
Issue Date
1987-10
Language
Korean
Citation

오토저널, v.9, no.5, pp.41 - 48

ISSN
1739-4791
URI
http://hdl.handle.net/10203/14760
Appears in Collection
AE-Journal Papers(저널논문)
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