Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Aerodynamic Performance Dependency on the Geometric Shape and Mounting Location of OSRVM

OSRVM의 형상 및 장착 위치가 차량의 공력성능에 미치는 영향

  • Han, Hyun Wook (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Park, Hyun Ho (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Kim, Moon Sang (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Ha, Jong Paek (Aero/CFD CAE Team, GM Korea) ;
  • Kim, Yong Nyun (Aero/CFD CAE Team, GM Korea)
  • 한현욱 (한국항공대학교 항공우주 및 기계공학과) ;
  • 박현호 (한국항공대학교 항공우주 및 기계공학과) ;
  • 김문상 (한국항공대학교 항공우주 및 기계공학과) ;
  • 하종백 (한국 지엠 주식회사 Aero/CFD CAE팀) ;
  • 김용년 (한국 지엠 주식회사 Aero/CFD CAE팀)
  • Received : 2012.04.09
  • Accepted : 2012.09.20
  • Published : 2013.05.01
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Abstract

This study investigates the effects of OSRVM mounting location and its configurations such as stalk height and housing height on the aerodynamic performance of the passenger car. In order to validate the flow solver, FLUENT which is very well known commercial code, the flow field around an Ahmed Body was analyzed numerically and compared with the experimental data. The predicted aerodynamic performance and flow patterns around a car show good agreements with the experimental data. Mounting location and stalk height should be designed while OSRVM is mounted on the car to evaluate the aerodynamic performance precisely. Housing height, however, may be designed independent of the car because the aerodynamic interference between housing height and car configuration is negligible.

Keywords

References

  1. A. Cogotti, "Evolution of Performance of An Automotive Wind Tunnel," Journal of Wind Engineering and Industrial Aerodynamics 96, pp.667-700, 2008. https://doi.org/10.1016/j.jweia.2007.06.007
  2. S. N. Singh, L. Rai, P. Puri and A. Bhatnagar, "Effect of Moving Surface on the Aerodynamic Drag of Road Vehicles," Proceedings of the Institution of Mechanical Engineers, Part D : Journal of Automobile Engineering, Vol.219, pp.127-134, 2005. https://doi.org/10.1243/095440705X5886
  3. Z. Chroneer, "The CFD Process for Aerodynamics at Volvo Cars Using HARPOON-FLUENT," European Automotive CFD Conference, 2007.
  4. M. Tsubokura, T. Kobayashi, T. Nakashima, T. Nouzawa, T. Nakamura, H. Zhang, K. Onishi and N. Oshima, "Computational Visualization of Unsteady Flow around Vehicles Using High Performance Computing," Computers & Fluids, Vol.38, Issue 5, pp.981-990, 2009. https://doi.org/10.1016/j.compfluid.2008.01.020
  5. FLUENT-Commercially Available CFD Software Package Ver.6.3, A Product of FLUENT Inc.
  6. S. R. Ahmed, G. Ramm and G. Faltin, "Some Salient Features of the Time-averaged Ground Vehicle Wake," SAE 840300, 1984.
  7. H. Lienhart, C. Stoots and S. Becker, "Flow and Turbulence Structures on the Wake of a Simplified Car Model (Ahmed Model)," DGLR Fach. Symp. der AG STAB, Stuttgart University, 2000.
  8. V. Uruba and O. Hladík, "On the Ahmed Body Wake," Colloquium FLUID DYNAMICS, 2009.
  9. A. Spohn and P. Gillieron, "Flow Separations Generated by a Simplified Geometry of an Automotive Vehicle," Flow Separations on the Ahmed Body.
  10. G. Franck, N. Nigro, M. A. Storti and J. D'Elia, "Numerical Simulation of the Flow Around the Ahmed Vehicle Model," Latin American Applied Research, Vol.39, No.4, 2009.
  11. E. Guilmineau, "Computational Study of Flow around a Simplified Car Body," Journal of Wind Engineering and Industrial Aerodynamics, Vol.96, Issues 6-7, pp.1207-1217, 2008. https://doi.org/10.1016/j.jweia.2007.06.041
  12. B. Khalighi, S. Zhang, C. Koromilas, S. R. Balkanyi, L. P. Bernal, G. Iaccarino and P. Moin, "Experimental and Computational Study of Unsteady Wake Flow behind a Bluff Body with a Drag Reduction Device," SAE 2001-01B-207, 2001.
  13. R. K. Strachan, K. Knowles and N. Lawson, "The Aerodynamic Interference Effects of Side Wall Proximity on a Generic Car Model," Ph. D. Dissertation, Cranfield University, Cranfield Bedford, 2006.

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