Dynamic stall phenomena have been investigated numerically by solving incompressible Navier-Stokes equations with a third- order upwind scheme in order to reveal the flow structure and mechanism of dynamic stall. The separated flows around a wing section at static attack angle are calculated and compared with the experiments which are conducted by the present authors. The results show excellent agreements with the experiments and the numerical scheme is proved to work well. Separated flows around oscillating airfoil in pitch are calculated by using the scheme and a moving mesh system. The flow conditions are selected from our experiments. The calculated separated region is small in pitching-up process and it becomes large in a pitching-down process. Quite different characteristics of flow patterns between in a pitching-up and pitching-down processes are obtained.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Numerical Simulations of Separated Flows Around Oscillating Airfoil for Dynamic Stall Phenomena


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Pacific Air & Space Technolgy Conference ; 1991



    Erscheinungsdatum :

    1991-09-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Oscillating Airfoil Compressible Dynamic Stall Studies

    Chandrasekhara, M. S. / Indian Institute of Science; Department of Aerospace Engineering | British Library Conference Proceedings | 1993



    Experimental and Computational Studies on Unsteady Separated Flows Around Oscillating Airfoil

    Aso, S. / Kumamoto, Y. / Beijing University of Aeronautics and Astronautics | British Library Conference Proceedings | 1994


    Amplitude effects on dynamic stall of an oscillating airfoil

    CHANDRASEKHARA, M. / BRYDGES, B. | AIAA | 1990