The present paper deals with the computational flow simulation and analysis of NACA (National Advisory Committee for Aeronautics) shape based cooling air inlets for road vehicles. A suitable testing geometry was chosen and built up in hardware to gather experimental data for validation. A CFD simulation process was defined and validated using experimental pressure distributions in the ducting. Then, the total pressure deficit of the inlet flow was evaluated for a wide range of different geometric configurations. About 30 CFD runs were accomplished. The study investigates how geometric properties like aspect ratio, slant angle, lip and bounding surface shape and edge radius affect the flow quality. Furthermore, boundary layer thickness and angular yaw position of the ducting are taken into account. It can be seen that small slant angel, large edge radii, thin boundary layers and small yaw angles lead to small pressure deficits. With these results, a proposal for an optimal NACA duct shape can be given for each area of interest on the vehicle's surface.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    CFD analysis of submerged air inlets for automotive application


    Beteiligte:


    Erscheinungsdatum :

    2012


    Format / Umfang :

    17 Seiten, 18 Bilder, 23 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Numerical Analysis of Submerged Inlets

    Taskinoglu, Ezgi / Knight, Doyle | AIAA | 2002


    Design Optimization for Submerged Inlets

    Taskinoglu, Ezgi / Knight, Doyle | AIAA | 2003


    Design Optimization for Submerged Inlets- Part I

    Taskinoglu, E. S. / Knight, D. D. / AIAA | British Library Conference Proceedings | 2003


    Theoretical investigation of submerged inlets at low speeds

    Sacks, A.H. / Spreiter, J.R. | Engineering Index Backfile | 1951