DOI QR코드

DOI QR Code

Experimental and numerical aerodynamic investigation of a prototype vehicle

  • Akansu, Selahaddin Orhan (Department of Mechanical Engineering, The Faculty of Engineering of Erciyes University) ;
  • Akansu, Yahya Erkan (Department of Mechanical Engineering, The Faculty of Engineering of Nigde University) ;
  • Dagdevir, Toygun (Department of Mechanical Engineering, The Faculty of Engineering of Erciyes University) ;
  • Daldaban, Ferhat (Department of Electric & Electronic Engineering, The Faculty of Engineering Erciyes University Melikgazi) ;
  • Yavas, Feridun (Department of Mechanical Engineering, The Faculty of Engineering of Erciyes University)
  • Received : 2014.03.24
  • Accepted : 2015.05.03
  • Published : 2015.06.25

Abstract

This study presents experimental and numerical aerodynamic investigation of a prototype vehicle. Aerodynamics forces examined which exerted on a prototype. This experimental study was implemented in a wind tunnel for the Reynolds number between $10^5-3.1{\times}10^5$. Numerical aerodynamic analysis of the vehicle is conducted for different Reynolds number by using FLUENT CFD software, with the k-$\varepsilon$ realizable turbulence model. The studied model aims at verifying the aerodynamic forces between experimental and numerical results. After the Reynolds number of $2.8{\times}10^5$, the drag coefficient obtained experimentally becomes independent of Reynolds number and has a value of 0.25.

Keywords

References

  1. Akansu, Y.E. and Firat, E. (2010), "Control of flow around a square prism by slot jet injection from the rear surface", Expert. Therm. Fluid Sci., 34(7), 906-914. https://doi.org/10.1016/j.expthermflusci.2010.02.007
  2. Bearman, P.W. and Wadcock, A.J. (1973), "The interaction between a pair of circular cylinders normal to a stream", J. Fluid Mech., 61, 499-511 https://doi.org/10.1017/S0022112073000832
  3. Cengel, Y.A. and Cimbala, J.M. (2006), Fluid Mechanics Fundamentals and Application McGraw-Hill Companies, New York, USA.
  4. Cheli, F., Corradi, R., Sabbioni, E. and Tomasini, G. (2011), "Wind tunnel tests on heavy road vehicles : Cross wind induced loads-Part 1", J. Wind Eng. Ind. Aerod., 99(10), 1000-1010. https://doi.org/10.1016/j.jweia.2011.07.009
  5. Cheng, S.Y., Tsubokura, M., Nakashima, T., Nouzawa, T. and Okada, Y. (2011), "A numerical analysis of transient flow past road vehicles subjected to pitching oscillation", J. Wind Eng. Ind. Aerod., 99(5), 511-522. https://doi.org/10.1016/j.jweia.2011.02.001
  6. Cheng, S.Y., Tsubokura, M., Nakashima, T., Okada, Y. and Nouzawa, T. (2012), "Numerical quantification of aerodynamic damping on pitching of vehicle-inspired bluff body", J. Fluids Struct., 30, 188-204. https://doi.org/10.1016/j.jfluidstructs.2012.01.002
  7. Cheng, X.H., Luo, S.M., Chang, X.F. and Xie, D. (2014), "Numerical analysis of an external Flow-Field around a Formula SAE Car Body Based on FLUENT", Adv. Mater. Res., 1039, 17-24. https://doi.org/10.4028/www.scientific.net/AMR.1039.17
  8. Fluent Inc. (2006), Fluent 6.3 User's Guide, Lebanon, New Hampshire.
  9. Guilmineau, E. (2008), "Computational study of flow around a simplified car body", J. Wind Eng. Ind. Aerod., 96(6-7), 1207-1217 https://doi.org/10.1016/j.jweia.2007.06.041
  10. Hamut, S.H., El-Emam, R.S., Aydin, M. and Dincer, I. (2014), "Effects of rear poilers on ground vehicle aerodynamic drag", Int. J. Numer.Method. Heat Fluid, 24(3), 627-642. https://doi.org/10.1108/HFF-03-2012-0068
  11. Han, Y., Hui, J., Cai, C.S., Chen, Z. and Li, C. (2013), " Experimental and numerical studies of aerodynamic forces on vehicles and bridges", Wind Struct., 17(2), 163-184. https://doi.org/10.12989/was.2013.17.2.163
  12. Hassan, S.M.R., Islam, T., Ali, M. and Islam, M.Q. (2014), "Numerical study on aerodynamic drag reduction of racing cars", Procedia Eng., 90, 308-313. https://doi.org/10.1016/j.proeng.2014.11.854
  13. Khaled, M., Hage, H.E., Harambat, F. and Peerhossaini, H. (2012), "Some innovative concepts for car drag reduction: A parametric analysis of aerodynamic forces on a simplified body", J. Wind Eng. Ind. Aerod., 107-108, 36-47. https://doi.org/10.1016/j.jweia.2012.03.019
  14. Lu, X. (2015), Research on the Flow Field around a Formula SAE Car, SAE Technical Paper. no: 2015-26-0208.
  15. Muralidharan, V., Balakrishnan, A. and Kumar, Y.S. (2015), "Desing optimization of front and rear aerodynamic wings of a high performance race car with modified airfoil structure", Nascent Technologies in the Engineering Field (ICNTE), Mumbai, Jan.
  16. Nasir, R.E.M., Mohamad, F., Kasiran, R. and Adenan, M.S., Mohamed, M.F., Mat, M.H. and Ghani, A.R.A. (2012), "Aerodynamics of ARTeC's PEC 2011 EMo-C Car", Procedia Eng., 41, 1775-1780. https://doi.org/10.1016/j.proeng.2012.07.382
  17. Pinelli, J.P., Subramanian, C. and Plamondon M. (2004), "Wind effects on emergency vehicles", J. Wind Eng. Ind. Aerod., 92(7-8), 663-685. https://doi.org/10.1016/j.jweia.2004.03.008
  18. Sharma, R., Chadwick, D. and Haines, J. (2008), "Aerodynamics of an intercity bus", Wind Struct., 11(4), 257-273. https://doi.org/10.12989/was.2008.11.4.257
  19. Simoes J.A.O. (2001), "Icarus: the design process of a conceptual vehicle", Mater. Des., 22(4), 251-257. https://doi.org/10.1016/S0261-3069(00)00095-9
  20. Tilch, R., Tabbal, A., Zhu, M., Decker, F. and Lohner, R. (2008), "Combination of body-fitted and embedded grids for external vehicle aerodynamics", Eng. Comput., 25(1), 28-41 https://doi.org/10.1108/02644400810841404
  21. Watkins, S. and Vino, G. (2008), "The effect of vehicle spacing on the aerodynamics of a representative car shape", J. Wind Eng. Ind. Aerod., 96(6-7), 1232-1239. https://doi.org/10.1016/j.jweia.2007.06.042
  22. Wong, J.Y. (2008), Theory of Ground Vehicles, John Wiley& Sons, Hoboken, New Jersey, USA.
  23. Zhang, Y.C., Ding, W., Zhang, Z. and Li, J. (2014), "Comparison research on aerodynamic drags and pressure coefficients of reference car models in automotive wind tunnel", Adv. Mater. Res., 989-994, 2834-2838. https://doi.org/10.4028/www.scientific.net/AMR.989-994.2834
  24. URL-1: http://en.wikipedia.org/wiki/Automobile_drag_coefficient, April 2015
  25. URL-2: http://www.formula1-dictionary.net/yaw.html.

Cited by

  1. Multi-objective optimization study on the power cooling performance and the cooling drag of a full-scale vehicle vol.64, pp.6, 2021, https://doi.org/10.1007/s00158-021-03035-6