Skip to main content

Comparative Study on the Performances of Aerodynamic Devices Used in Decreasing of the Automobiles Lift Force

  • Conference paper
  • First Online:
CONAT 2016 International Congress of Automotive and Transport Engineering (CONAT 2016)

Abstract

Being a continuous subject of research, this study presents new results concerning devices used to generate downforce and their influence in road vehicle aerodynamics. Thus, using a mass production car model, the study examines the effects of a rear wing and a short underbody diffuser on the main aerodynamic characteristics, lift and drag. The results show that the lift of the studied car decreases due to both diffuser and rear wing, more significantly due to the later one. Concerning the drag, it decreases only in the case of underbody diffuser.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 189.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 249.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 329.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Similar content being viewed by others

References

  1. Buchheim, R., Deutenbach K.R., Laxckoff, H.J.: Necessity and premises for reducing the aerodynamic drag of future passenger cars. SAE Technical Paper 810185 (1981). doi:10.4271/810185

  2. George, A.R.: Aerodynamic effects on shape chamber, pitch, and ground proximity on idealized ground vehicle body. ASME J. Fluids Eng. 103, 631–638 (1981)

    Article  Google Scholar 

  3. Howell, J.P.: The influence of a vehicle underbody on aerodynamics of a simple car shapes with an underfloor diffuser. In: Vehicle Aerodynamics, R.Ae.S. Conference, Loughborough, pp. 36.1–36.11 (1994)

    Google Scholar 

  4. Cooper, K.R., Bertenyi, T., Dutil, G., Syms, J., Sovran, G.: The aerodynamic performance of automotive underbody diffusers. In: SAE Technical Paper 980030 (1998). doi:10.4271/980030

  5. Cooper, K.R., Sovran, G., Syms, J.: Selecting automotive diffusers to maximise underbody downforce. In: SAE Technical Paper 2000-01-0354 (2000). doi:10.4271/2000-01-0354

  6. Senior, A.E., Zhang, X.: The Force and pressure of a diffuser-equipped bluff body in ground effect. ASME J. Fluids Eng. 123, 105–111 (2001)

    Article  Google Scholar 

  7. Zhang, X., Senior, A., Ruhrmann, A.: Vortices behind a bluff body with an upswept aft section in ground effect. IJ Heat Fluid Flow 25, 1–9 (2004)

    Article  Google Scholar 

  8. Huminic, A., Huminic, G.: Computational study of flow in the underbody diffuser for a simplified car model. In: SAE Technical Paper 2010-01-0119 (2010). doi:10.4271/2010-01-0119

  9. Huminic, A., Huminic, G., Soica, A.: Study of aerodynamics for a simplified car model with the underbody shaped as a Venturi nozzle. IJ Veh. Des. 58(1), 15–32 (2012)

    Article  Google Scholar 

  10. Katz, J., Dykstra, L.: Study of an open-wheel racing-car’s rear-wing aerodynamics. In: SAE Technical Paper 890600 (1989). doi:10.4271/890600

  11. Katz, J., Dykstra, L.: Effect of wing/body interaction on the aerodynamics of two generic racing cars. In: SAE Technical Paper 920349 (1992). doi:10.4271/920349

  12. Katz, J., Dykstra, L.: Effect of passenger car’s rear deck geometry on its aerodyanamic coefficients. ASME J. Fluids Eng. 114(2), 186–190 (1992)

    Article  Google Scholar 

  13. Diasinos, S., Gatto, A.: Experimental investigation into wing span and angle-of-attack effects on sub-scale race car wing/wheel interaction aerodynamics. J. Exp. Fluids 45(3), 537–546 (2008)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Angel Huminic .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2017 Springer International Publishing Switzerland

About this paper

Cite this paper

Huminic, A., Huminic, G., Carauleanu, M., Ciolofan, C. (2017). Comparative Study on the Performances of Aerodynamic Devices Used in Decreasing of the Automobiles Lift Force. In: Chiru, A., Ispas, N. (eds) CONAT 2016 International Congress of Automotive and Transport Engineering. CONAT 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-45447-4_5

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-45447-4_5

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-45446-7

  • Online ISBN: 978-3-319-45447-4

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics