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.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Spur-type instability observed on numerically simulated vortex filaments


    Contributors:

    Published in:

    Publication date :

    1988-09-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :



    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

    Free access