An instability observed on vortex filaments during numerical simulations of the three-dimensional, time-dependent dynamics of vortex wakes is studied to determine when and why it occurs. It is concluded that the observed instability is a consequence of the use of straight-line vortex segments of finite length to model continuously curving vortex filaments. The instability appears to occur only when the link length is a sizable fraction of the vortex span and, therefore, is not expected in an experiment. Guidelines are then given that help avoid numerical instabilities when vortex filaments are used in flow simulations.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Spur-type instability observed on numerically simulated vortex filaments


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.09.1988



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Visualization of numerically simulated aerodynamic flow fields

    HIAN, QUEK / DAMODARAN, MURALI | AIAA | 1991


    Stereo image visualization of numerically simulated turbulence

    ROBINSON, STEPHEN / HU, KENNETH | AIAA | 1989


    VORTEX ELEMENT METHOD SIMULATION OF KNOTTED VORTEX FILAMENTS EVOLUTION

    S. A. Dergachev / G. A. Shcheglov | DOAJ | 2016

    Freier Zugriff