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    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.
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Flow compressibility effects around an open-wheel racing car

  • J. Keogh (a1), G. Doig (a1) and S. Diasinos (a2)
Abstract

A numerical investigation has been conducted into the influence of flow compressibility effects around an open-wheeled racing car. A geometry was created to comply with 2012 F1 regulations. Incompressible and compressible CFD simulations were compared – firstly with models which maintained Reynolds number as Mach number increased, and secondly allowing Mach number and Reynolds number to increase together as they would on track. Results demonstrated significant changes to predicted aerodynamic performance even below Mach 0·15. While the full car coefficients differed by a few percent, individual components (particularly the rear wheels and the floor/diffuser area) showed discrepancies of over 10% at higher Mach numbers when compressible and incompressible predictions were compared. Components in close ground proximity were most affected due to the ground effect. The additional computational expense required for the more physically-realistic compressible simulations would therefore be an additional consideration when seeking to obtain maximum accuracy even at low freestream Mach numbers.

Copyright
COPYRIGHT: © Royal Aeronautical Society 2014
Corresponding author
j_keogh@live.com.au
g.doig@unsw.edu.au
sammy.diasinos@mq.edu.au
References
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1. Agathangelou, B. and Gascoyne, M. Aerodynamic considerations of a formula one racing car, SAE Technical Paper, 1998, 980399, doi:10.4271/980399.
2. Katz, J. Aerodynamics of race cars, Annu Rev of Fluid Mech, 2006, 38, pp 27–63.
3. Dominy, R.G. Aerodynamics of Grand Prix car, Proceedings of the Institution of Mechanical Engineers, 1992, 206, pp 267–274.
4. Zhang, X., Toet, W. and Zerihan, J. Ground effect aerodynamics of race cars, Applied Mechanics Reviews, 2006, 59, pp 33–49.
5. Toet, W. Aerodynamics and aerodynamic research in Formula 1, Aeronaut J, January 2013, 11 7, (1187) pp 1–26.
6. FIA, 2012 Formula 1 Sporting Regulations, Section 22, Fédération Internationale de l’Automobile. See also URL: http://www.formula1.com/inside_f1/rules_and_regulations/
7. Doig, G., Barber, T.J., Leonardi, E. and Neely, A.J. The onset of compressibility effects for an inverted aerofoil in ground effect, Aeronaut J, 2007, 111, (1126), pp 797–806.
8. Doig, G., Barber, T.J. and Neely, A.J. The infuence of compressibility on the aerodynamics of an inverted wing in ground effect, ASME J Fluids Eng, 2011, 133, (6), pp 1–12.
9. Zhang, X. and Zerihan, J. Aerodynamics of a double-element wing in ground effect, AIAA J, 2003, 41, (6), pp 1007–1016.
10. Pakkam, S.S. High downforce aerodynamics for motorsports, Master’s thesis, North Carolina State University, USA, 2011.
11. Diasinos, S. The Aerodynamic Interaction of a Rotating Wheel and a Downforce Producing Wing in Ground Effect, PhD thesis, University of New South Wales, Australia, 2009.
12. Saddington, A.J., Knowles, R.D. and Knowles, K. Laser Doppler anemometry measurements in the near-wake of an isolated Formula One wheel, Experiments in Fluids, 2007, 42, (5), pp 671–681.
13. Barber, T.J., Leonardi, E. and Archer, R.D. Causes for discrepancies in ground effect analyses, Aeronaut J, 2002, 106, (1066) pp 653–657.
14. Roacher, P.J. Quantifcation of uncertainty in computational fuid dynamics, Annual Review of Fluid Mechanics, 1997, 29, pp 123–160.
15. Zerihan, J. and Zhang, X. Aerodynamics of a single element wing in ground effect, J Aircr, 2000, 37, (6), pp 1058–1064.
16. Fackrell, J.E. The Aerodynamics of an Isolated Wheel Rotating in Contact with the Ground, PhD thesis, University of London, London, UK, 1975.
17. Zerihan, J. An Investigation into the Aerodynamics of Wings in Ground Effect, PhD. thesis, University of Southampton, School of Engineering Sciences, UK, 2001.
18. Shih, T.H., Liou, W.W., Shabir, A., Yang, Z. and Zhu, J. A new k-e eddy viscosity model for high reynolds number turbulent fows, Computers Fluids, 1995, 24, (3), pp 227–238.
19. Menter, F.R. Two-equation eddy-viscosity turbulence models for engineering applications, AIAA J, 1994, 32, (8), pp 69–289.
20. Spalart, P.R. and Allmaras, S.R. A one-equation turbulence model for aerodynamic fows. In AIAA, 30th Aerospace Sciences Meeting and Exhibit, Reno, NV, USA, 6-9 January 1992.
21. Doig, G. and Barber, T.J. Considerations for numerical modelling of low aspect ratio inverted wings in ground effect, AIAA J, 2011, 49, pp 2330–2333.
22. Mahon, S. and Zhang, X. Computational analysis of an inverted double-element aerofoil in ground effect, ASME J Fluids Eng, 2006, 128, pp 1172–1180.
23. McManus, J. and Zhang, X. A computational study of the fow around an isolated wheel in contact with ground, J Fluids Eng, 2006, 128, (3) pp 520–530.
24. Axerio-Cilies, J. and Iaccarino, G. An aerodynamic investigation of an isolated rotating Formula 1 wheel assembly, J Fluids Eng, 2012, 134, (12), pp 1–16.
25. Dassanayake, P.R.K., Ramachandran, D., Salati, L., Barber, T.J. and Doig, G. Unsteady computational simulation of the fow structure of an isolated wheel in contact with the ground, Proceedings of the 18th Australasian Fluid Mechanics Conference, Launceston, Australia, 3-7 Dec 2012.
26. Van Den Berg, M.A. and Zhang, X. The aerodynamic interaction between an inverted wing and a rotating wheel, J Fluids Eng, 2009, 131, (10), pp 101–114.
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The Aeronautical Journal
  • ISSN: 0001-9240
  • EISSN: 2059-6464
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