An iterative viscous/potential flow calculation method is described in this paper. A potential-flow panel method is coupled with integral boundary layer methods. Simple linear doublet sheets are used to enclose the low-energy separated-flow region of the wake. Calculations for various body shapes demonstrate that unseparated flow pressure distributions are accurately calculated. Body lift trends are also properly computed for a simple body with separation only at the base and in close ground proximity. However, the prediction of average base pressure is only partially successful. The base pressures for a limited number of geometries, which include a Porsche 924, are properly predicted, but calculations for other shapes indicate that the separated-flow wake model must be improved for general body shapes.


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    Title :

    Predicting automobile aerodynamic characteristics using an iterative viscous/potential flow technique


    Additional title:

    Berechnung der aerodynamischen Eigenschaften von Automobilen mit Hilfe einer iterativen visko/Potentialstroemungsmethode


    Contributors:
    Summa, J.M. (author) / Maskew, B. (author)

    Published in:

    Publication date :

    1983


    Size :

    17 Seiten, 22 Bilder, 34 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English