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CFD-Based Modelling of the Variation of Aerodynamic Coefficients with Wind Angle

Malviya, Vihar, Mishra, Rakesh and Gundala, Naresh (2009) CFD-Based Modelling of the Variation of Aerodynamic Coefficients with Wind Angle. In: Proceeding of National Conference on Fluid Mechanics & Fluid Power 17-19 December 2009. College of Engineering Pune, Pune, India.

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    Abstract

    This paper presents CFD-based investigation to develop a deterministic relation between the aerodynamic coefficients and the relative angle of attack of the flow. A mathematical model has been developed to predict the aerodynamic coefficients, which allows accurate quantification of aerodynamic forces and moments for a large variety of ground vehicles in all types of side wind conditions. The vehicle type has been generalised on the basis of primary dimensional parameters of vehicle length, width and height. CFD simulations have been carried on a double deck bus model at wind speed of 25 m/s (90 km/hour, 56 mile/hour), for wind angles ranging from 0º (head wind) to 90º. These computational results have been used for developing systematic equations to quantify aerodynamic coefficients. Conclusions have been based on the requirement of this model in a larger overall stability model for ground vehicles which considers other non-aerodynamic sources of vehicle instability as well. The mathematical relation for aerodynamic coefficients developed herein can be used for numerous other aerodynamic and fluid dynamic investigations that involve large angles of attack.

    Item Type: Book Chapter
    Additional Information: Paper No:69-CFD-6
    Uncontrolled Keywords: Aerodynamics, analytical model, coefficient, flow angle, CFD
    Subjects: T Technology > TJ Mechanical engineering and machinery
    T Technology > TA Engineering (General). Civil engineering (General)
    T Technology > TL Motor vehicles. Aeronautics. Astronautics
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Automotive Engineering Research Group
    School of Computing and Engineering > Pedagogical Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Machinery Condition and Performance Monitoring Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
    School of Computing and Engineering > Informatics Research Group
    School of Computing and Engineering > Informatics Research Group > XML, Database and Information Retrieval Research Group
    School of Computing and Engineering > High Performance Computing Research Group
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    References:

    1. Baker, C. (1986). A simplified analysis of various types of wind-induced road vehicle accidents. Journal of Wind Engineering and Industrial Aerodynamics, 22(1), 69-85. doi: 10.1016/0167-6105(86)90012-7.

    2. Baker, C. (1987). Measures to control vehicle movement at exposed sites during windy periods. Journal of Wind Engineering and Industrial Aerodynamics, 25(2), 151-161. doi: 10.1016/0167-6105(87)90013-4.

    3. Charuvisit, S., Kimura, K., & Fujino, Y. (2004a). Effects of wind barrier on a vehicle passing in the wake of a bridge tower in cross wind and its response. Journal of Wind Engineering and Industrial Aerodynamics, 92(7-8), 609-639. doi: 10.1016/j.jweia.2004.03.006.

    4. Charuvisit, S., Kimura, K., & Fujino, Y. (2004b). Experimental and semi-analytical studies on the aerodynamic forces acting on a vehicle passing through the wake of a bridge tower in cross wind. Journal of Wind Engineering and Industrial Aerodynamics, 92(9), 749-780. doi: 10.1016/j.jweia.2004.04.001.

    5. Directgov. (2007). Control of the vehicle (117-126). The Highway Code. Article, . Retrieved August 3, 2009, from http://www.direct.gov.uk/en/TravelAndTransport/Highwaycode/DG_070304.

    6. Fluent Inc. (2006, September). FLUENT 6.3 User's Guide. Fluent Inc.
    Fluent Inc. (2007, May). GAMBIT 2.4 User's Guide. Fluent Inc.

    7. Howell, J. (1996). The side load distribution on a Rover 800 saloon car under crosswind conditions. Journal of Wind Engineering and Industrial Aerodynamics, 60, 139-153. doi: 10.1016/0167-6105(96)00029-3.

    8. Hucho, W. (Ed.). (1998). Aerodynamics of Road Vehicles (4th ed., p. 918). Warrendale, PA (USA): Society of Automotive Engineers (SAE).

    9. Malviya, V., Mishra, R., & Fieldhouse, J. (2009). CFD Investigation of a Novel Fuel-Saving Device for Articulated Tractor-Trailer Combinations. Engineering Applications of Computational Fluid Mechanics, 3(4), 587-607.

    10. Moncarz, H., Barlow, J., & Hawks, R. (1973). Stability and Cross-Wind Response of an Articulated Vehicle with Roll Freedom. In Advances in Road Vehicle Aerodynamics (pp. 101-126). Bhra Fluid Engineering.

    11. Passmore, M., Richardson, S., & Imam, A. (2001). An experimental study of unsteady vehicle aerodynamics. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 215(7), 779-788. doi: 10.1243/0954407011528365.

    12. Pinelli, J., Subramanian, C., & Plamondon, M. (2004). Wind effects on emergency vehicles. Journal of Wind Engineering and Industrial Aerodynamics, 92(7-8), 663-685. doi: 10.1016/j.jweia.2004.03.008.

    13. Quinn, A., Sterling, M., Robertson, A., & Baker, C. (2007). An investigation of the wind-induced rolling moment on a commercial vehicle in the atmospheric boundary layer. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 221(11/2007), 1367-1379. doi: 10.1243/09544070JAUTO537.

    14. Régert, T., & Lajos, T. (2007). Description of flow field in the wheelhouses of cars. International Journal of Heat and Fluid Flow, 28(4), 616-629. doi: 10.1016/j.ijheatfluidflow.2007.04.017.

    15. Sanquer, S., Barré, C., de Virel, M. D., & Cléon, L. (2004). Effect of cross winds on high-speed trains: development of a new experimental methodology. Journal of Wind Engineering and Industrial Aerodynamics, 92(7-8), 535-545. doi: 10.1016/j.jweia.2004.03.004.

    16. Singh, S., Rai, L., Puri, P., & Bhatnagar, A. (2005). Effect of moving surface on the aerodynamic drag of road vehicles. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219(2), 127-134. doi: 10.1243/095440705X5886.

    17. Suzuki, M., Tanemoto, K., & Maeda, T. (2003). Aerodynamic characteristics of train/vehicles under cross winds. Journal of Wind Engineering and Industrial Aerodynamics, 91(1-2), 209-218. doi: 10.1016/S0167-6105(02)00346-X.

    Depositing User: Vihar Malviya
    Date Deposited: 22 Apr 2010 12:18
    Last Modified: 16 Dec 2010 09:57
    URI: http://eprints.hud.ac.uk/id/eprint/7465

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