The present paper addresses an experimental investigation of the dynamic and the control of a longitudinal vortex emanating from the front pillar of a dihedral bluff body corresponding to a simplified geometry of an automotive vehicle. The control system is based on a thin rectangular slot located along the lateral edge of the windscreen and provides steady suction or blowing normal to the lateral face of the geometry. Qualitative results obtained with dye visualizations and Schlieren photos provide an overview of the impact of the control on the topology of the vortex flow. Quantitative Stereo-PIV measurements and unsteady forces measurements are used to characterize the interaction between the control and the longitudinal vortex. Controls that change significantly the topology of the vortex core and reduce aerodynamic drag are identified.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental investigation on longitudinal vortex control over a dihedral bluff body


    Weitere Titelangaben:

    Experimentelle Untersuchung zur longitudinalen Wirbelsteuerung an einem V-förmigen stumpfen Körper


    Beteiligte:

    Erschienen in:

    Experiments in Fluids ; 48 , 1 ; 33-48


    Erscheinungsdatum :

    2010


    Format / Umfang :

    7 Seiten, 18 Bilder, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Investigation and Active Control of Bluff Body Vortex Shedding Using Plasma Actuators

    Koc, Ilteris / Britcher, Colin / Wilkinson, Stephen | AIAA | 2012


    Longitudinal grooves for bluff body drag reduction

    QUASS, B. / HOWARD, F. / WEINSTEIN, L. et al. | AIAA | 1981


    Longitudinal grooves for bluff body drag reduction

    Quass, B. / Howard, F. / Weinstein, L. et al. | NTRS | 1981


    Low-Frequency Modulations Associated with Vortex Shedding from Flow over Bluff Body

    Jiun-Jih Miau / Shiang-Jie Wu / Chih-Chung Hu et al. | AIAA | 2004


    2012-2958 Investigation and Active Control of Bluff Body Vortex Shedding Using Plasma Actuators

    Koc, I. / Britcher, C. / Wilkinson, S. et al. | British Library Conference Proceedings | 2012