Pattern dynamics of vortex ripples in sand: Nonlinear modeling and experimental validation

Ken Haste Andersen, M. Abel, J. Krug, C. Ellegaard, L. R. Søndergaard, J. Udesen

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    Abstract

    Vortex ripples in sand are studied experimentally in a one-dimensional setup with periodic boundary conditions. The nonlinear evolution, far from the onset of instability, is analyzed in the framework of a simple model developed for homogeneous patterns. The interaction function describing the mass transport between neighboring ripples is extracted from experimental runs using a recently proposed method for data analysis, and the predictions of the model are compared to the experiment. An analytic explanation of the wavelength selection mechanism in the model is provided, and the width of the stable band of ripples is measured.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume88
    Issue number23
    Pages (from-to)234302
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2002

    Bibliographical note

    Copyright (2002) American Physical Society

    Keywords

    • WATER
    • WAVES

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