한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제21권2호
  • /
  • Pages.8-13
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  • 2023
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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유동 제어 장치를 이용한 상용차량의 항력저감 연구

Study on drag reduction of commercial vehicle using flow control device

  • 김성호 ;
  • 김정재
  • S. H. Kim (Department of mechanical engineering, Hanbat national university) ;
  • J. J. Kim (Department of mechanical engineering, Hanbat national university)
  • 투고 : 2023.05.12
  • 심사 : 2023.06.19
  • 발행 : 2023.07.31
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초록

The primary challenge in improving fuel efficiency and reducing air pollution for commercial vehicles is reducing their aerodynamic drag. Various flow control devices, such as cab-roof fairing, gap fairing, cab extender, and side skirt have been introduced to reduce drag, however, the drag reduction effect and applicability are different depending on each commercial vehicle model. To evaluate the fuel consumption of heavy vehicles, a comprehensive research approach, including drag force measurement, flow field analysis is required. This study investigated the effect of a cab extender, which installed rear region of cab, on a drag coefficient of commercial vehicle through wind tunnel experiments and CFD. The results showed that the cab extender significantly modified the flow structure around the vehicle, leading to 8.2% reduction in drag coefficient compared to the original vehicle model. These results would provide practical application for enhancing the aerodynamic performance and fuel efficiency of heavy vehicle.

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과제정보

본 연구는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업(2021RIS-004) 및 이공분야 기초연구사업(NRF-2021R1G1A1093148)의 결과입니다.

참고문헌

  1. Roy S. and Srinivasan P., 2000, External Flow Analysis of a Truck for Drag Reduction, SAE International, Vol.109(2), pp.808~812. https://doi.org/10.4271/2000-01-3500
  2. Buchheim R., Deutenbach K. R. and Luckoff H. J., 1981, Necessity and Premises for Reducing the Aerodynamic Drag of Future Passenger Cars, SAE International, Vol. 90(1), pp.758~771 https://doi.org/10.4271/810185
  3. Cooper K. R., 2004, Commercial Vehicle Aerodynamic Drag Reduction: Historical Perspective as a Guide, Lecture Notes in Applied and Computational Mechanics, Vol.19, pp.9~28 https://doi.org/10.1007/978-3-540-44419-0_2
  4. Kim J. J., Kim J. J., Han T. S., Kim D. W., and Lee S. J., 2017, Considerable Drag Reduction and Fuel Saving of a Tractor-trailer using Additive Aerodynamic Devices, Journal of Wind Engineering and Industrial Aerodynamics, Vol.191, pp.54~62. https://doi.org/10.1016/j.jweia.2019.05.017
  5. Seyhan M., and Sarioglu M., 2021, Investigaiton of Drag Reducion Performance of half NACA 0009 and 0012 Airfoils placed over a Trailer on the Flow around Truck-trailer, Journal of Mechanical Science and Technology, Vol.35(7), pp.2971~2979. https://doi.org/10.1007/s12206-021-0620-2
  6. Lee S. S., Kim M. K., You D. H., Kim J. J., and Lee S. J., 2016, Coarse Grid Large-eddy Simulation of Flow over a Heavy Vehicle, Journal of Computational Fluids Engineering, Vol. 21(1), pp. 30~35. https://doi.org/10.6112/kscfe.2016.21.1.030
  7. Lee E. J. and Lee S.J., 2017, Drag Reduction of a Heavy Vehicle using a Modified Cab Extender with lower Inclined Air Deflector, Journal of the Visualization Society of Japan, Vol.20, pp.743~752. https://doi.org/10.1007/s12650-017-0426-6
  8. Kim J. J., Lee E. J. and Lee S.J., 2020, Wind Tunnel Tests on Drag Reduction of Heavy Vehicles using Sinusoidal Cab Extenders, Journal of Mechanical Science and Technology, Vol.34(1), pp.201~208. https://doi.org/10.1007/s12206-019-1221-1
  9. Lee E. J., Hwang B. G., Kim J. J. and Lee S. J., 2015, Wind tunnel study on drag coefficient of a 5 to truck using additive devices, Journal of the Korean Society of Visualization, Vol. 13, No. 1, pp. 9~14. https://doi.org/10.5407/jksv.2015.13.1.009
  10. Hwang J. B., Park J. M., Song J. S. and Kim J. H., 2021, Experimental study on drag reduction of helmet for paragliding, Journal of the Korean Society of Visualization, Vol. 19, No. 3, pp. 46~53.
  11. Kim S. Y., Choi J. W. and Kim S. C., 2010, Computational Flow Analysis around Coaxial Rotor Blades with Various Ducts, Journal of the Korean Society of Visualization, Vol. 8, No. 2, pp. 23~30 https://doi.org/10.5407/JKSV.2010.8.2.023