한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제4권3호
  • /
  • Pages.31-39
  • /
  • 1996
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

Rear-spoiler를 이용한 자동차의 항력감소에 관한 실험적 연구

Experimental Study on Drag Reduction of Ground Vehicle Using a Rear-Spoiler

  • 최재호 (포항공과대학교대학원 기계공학과) ;
  • 이상준 (포항공과대학교 기계공학과)
  • 발행 : 1996.05.01
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초록

The effect of rear-spoiler attached at rear end of automobile trunk on the aerodynamic characteristics of a MIRA reference car model was experimentally investigated. For different shapes and positions(G/H) of the rear-spoiler, the aerodynamic forces on the automobile were measured at various flow speed(ReL). The effect of rear-spoiler on the wake structure behind the automobile was also investigated using flow visualization and hot-wire anemometer. The rear-spoiler modifies the near wake structure and decreases aerodynamic drag and increases driving stability compared with those of the conventional automobile without rear-spoiler. From the experimental results, rear-spoiler of airfoil shape installed at the position of G/H=0.084 shows the best aerodynamic performance.

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참고문헌

  1. Trans. of the ASME, J. Fluid Eng v.103 Wake Structure of Typical Automobile Shapes Ahmed, S. R.
  2. SAE 870244 Advanced Experimental Techniques and Their Application to Automotive Aerodynamics Buchheim, R(et al.)
  3. Separation of Flow Chang, P. K
  4. SAE 870243 Flow-field Survery behind Three Squareback Car Models Using a New Fourteen-hole Probe Cogotti, A
  5. SAE 930298 MEasurement in the Unsteady Near Wakes fo Ground Vehicle Bodies Duell, E. G.;George, A. R.
  6. SAE 850280 Wake Traverses behind Production Cars and Their Interpretation Hachett, J. E.;Williams, J. E.;Patrick, J. JR
  7. Aerodynamics of Road Vehicles Hucho, W. H.
  8. Trans. of The ASME, J. Fluid Eng v.144 Effect of Passenger Car's Rear Deck Geometry on Its Aerodynamic Coefficients Katz, J.;Dykstra, L.
  9. J. Wind Eng. & industrial Aero v.38 Wind Tunnel Tests on the influence of fixed Ground Board Length on the aerodynamic Characteristics of Simple commercial Vehicle Models kevin, P. G.
  10. AFERC, POSTECH Experimental Thermo-fluid Mechanics, Lecture note of the AFERC short course Lee, S. J.
  11. Hot-wire Anemometry Parry, A. E.
  12. SAE 930297 Airflow Measurement around Passenger Car Models Using a Two-channel Laser Doppler Velocimeter Sato, H.;Takagi, M.