Abstract The drag reduction of a pickup truck by a rear flap add-on was examined through CFD simulations and wind tunnel experiments. When installed at the rear edge of the roof, the flap increased the cabin back surface pressure coefficient, causing the downwash of the bed flow to be inclined on the tailgate. Thus, the attachment of the bed flow to the tailgate was eliminated; consequently, the drag coefficient was reduced with increasing flap length and downward angle despite the enlarged reverse flow in the wake. However, the drag coefficient did not decrease any further after a specific downward angle was reached because the bed flow increased the drag force at the tailgate and the flap lowered the pressure field above the flap. To maximize the drag reduction effect, the rear downward flap should be designed to have an optimum downward angle.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Drag reduction of a pickup truck by a rear downward flap


    Beteiligte:
    Ha, J. (Autor:in) / Jeong, S. (Autor:in) / Obayashi, S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2011-05-15


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Drag reduction of a pickup truck by a rear downward flap

    Ha, J. / Jeong, S. / Obayashi, S. | British Library Online Contents | 2011



    Pickup Truck Drag Reduction-Devices That Reduce Drag Without Limiting Truck Utility

    Jones, Jesse C. / Maxwell, Timothy T. / Jones, William B. | SAE Technical Papers | 1988


    Pickup truck and rear breast board of pickup truck

    SUN WEIXU / GAO YANGSONG / HE ZHIWEI | Europäisches Patentamt | 2023

    Freier Zugriff

    Investigation of the Bed and Rear Flap Variation for a Low-Drag Pickup Truck using Design of Experiments

    Ha, Jongsoo / Obayashi, Shigeru / Jeong, Shinkyu | SAE Technical Papers | 2010