To date the effects of winds on the computed fuel economy of highway vehicles have been omitted or included in simple ways. This paper presents the results of a rigorous computer study on the realistic effects of winds upon the aerodynamic resistance, and consequently, upon the fuel consumption of automobiles for EPA driving cycles. The aerodynamic resistance was a function of the instantaneous wind direction and speed relative to the car. A wind spectrum having an annual speed of 10 mph will increase the zero-yaw aerodynamic resistance by 16% for the Combined driving cycle. Several simplistic approaches were evaluated against rigorously obtained results.


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    Title :

    Realistic Effects of Winds on the Aerodynamic Resistance of Automobiles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1978 Automotive Engineering Congress and Exposition ; 1978



    Publication date :

    1978-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Realistic Effects of Winds on the Aerodynamic Resistance of Automobiles

    Dayman,B. / Calif.Inst.of Technol.,Jet Propul.Lab.,Pasadena,US | Automotive engineering | 1978



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    Metral, A. | Engineering Index Backfile | 1934


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