Quasi-stationary states in a circular geometry

G.H. Keetels, H.J.H. Clercx, G.J.F. van Heijst

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    5 Citations (Scopus)

    Abstract

    The quasi-stationary final states of decaying two-dimensional turbulence on a circular domain, with an initial flow field containing either no or a substantial amount of angular momentum, have been investigated numerically. The production of angular momentum is almost absent for these flows on a circular domain with a no-slip wall. Its presence or absence essentially determines the character of the quasi-stationary final state. Based on a minimum-enstrophy principle a diagram is constructed that provides insight into the development of the typical late-time flow patterns on a circular domain with a no-slip wall. The quasi-stationary final states found in the present numerical study can be understood based on the predictions from the minimum-enstrophy principle.
    Original languageUndefined
    Pages (from-to)1129-1142
    JournalPhysica D
    Volume238
    Issue number14
    DOIs
    Publication statusPublished - 2009

    Keywords

    • No-slip walls
    • Spin-up
    • IR-80150
    • Minimum enstrophy
    • Final states
    • Angular momentum

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