A computational investigation has been conducted to study the effect and mechanisms of the passive control of a supersonic flow over a rectangular two-dimensional cavity. The passive control was included through the use of a porous surface over a vent chamber in the floor of the cavity.The passive control effectively suppressed the low-frequency pressure oscillations for the open type cavity, (length-to-depth ratio = 6.0). The mechanism for the suppression was observed to be the stabilization of the motion of the free shear layer. For the closed type cavity flow, (length-to-depth ratio = 17.5), the passive control modified the flow field to nearly that of an open type cavity flow; further the cavity drag was reduced by a factor of 4. The computational results of both cases showed good agreement with the available experimental data and the predictions of a semi-empirical formula.This study demonstrates that the passive control concept can be used to improve the aerodynamic characteristics of open and closed cavity flow fields.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Passive Control of Supersonic Cavity Flowfields


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kim, I. (Autor:in) / Chokani, N. (Autor:in)

    Kongress:

    Aerospace Technology Conference and Exposition ; 1991



    Erscheinungsdatum :

    01.09.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    Large-Eddy Simulation of Supersonic Cavity Flowfields Including Flow Control

    Donald P. Rizzetta / Miguel R. Visbal | AIAA | 2003


    Supersonic reacting internal flowfields

    Drummond, J. P. | NTRS | 1991


    A Study of Recessed Cavity Flowfields for Supersonic Combustion Applications

    Baurle, R. A. / Gruber, M. R. / AIAA | British Library Conference Proceedings | 1998