Experimental Study on the Aerodynamic Characteristics of a Passenger Vehicle with Winglets

윙렛을 부착한 승용차의 공력특성에 관한 실험적 연구

  • 임진혁 (한국항공대학교 대학원)
  • Published : 1999.09.01

Abstract

In this study, aerodynmaic characteristics of the notch-back and fast-backpassenger vehicle models(1/10~1/12 acale) attached with winglets were experimentally investigated in a low speed wind tunnel. For various positions(X/L). tilted angles($\beta$) of a winglet, the aerodynamic forces on the vehicle model and rear-surface pressures were measured at various flow speeds. Also a flow of model surface was visualized by tuft method. The experimental results showed that winglets effect aerodynamic characteristics of vehicle models. A maximum of 3% reduction in lift coefficient was achieved with winglets at $\alpha$=-30$^{\circ}$. A maximum of 10% reduction in drag coefficient was achieved for a model with winglets and a rear-spoiler.

Keywords

References

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