Cohesive sediment transport on an inter-tidal zone under combined wave-tidal flow

D. P. Freeman, L. E. Coates, M. C. Ockendon, W. Roberts, J. R. West

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    Abstract

    Results are presented for cohesive sediment transport on a muddy inter-tidal zone at Portishead on the Severn estuary, U.K. Data for suspended solids concentration for calm and stormy conditions show the influence of waves in the surt zone, and further seaward. A turbulence model of the water column has been used to explain the turbulent transport mechanisms underlying a conceptual description of the vertical distribution of suspended solids concentration. The conceptual description for combined wave-current conditions proposes a near bed wave boundary layer dominated region, a region above the wave boundary layer controlled by turbulent diffusion effects and an upper region in which local bed generated turbulence is not of primary significance.
    Original languageEnglish
    Pages (from-to)283–288
    Number of pages6
    JournalNetherlands Journal of Aquatic Ecology
    Volume28
    Issue number3-4
    DOIs
    Publication statusPublished - Sep 1994

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