Sheet flow and suspension under wave groups in a large wave flume (SISTEX99)

C. Marjolein Dohmen-Janssen, D.M Hanes, Stephen R. McLean, Chris E. Vincent, Jan S. Ribberink

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    Abstract

    Detailed measurements of sediment concentrations in the sheet flow layer and in the suspension layer for flat bed conditions under prototype wave groups are presented. These measurements are part of experiments on near-bed sand transport processes, carried out in the Large Wave Flume in Hannover, Germany (SISTEX99). The results show that concentrations in the sheet flow layer are highly coherent with the instantaneous near-bed velocity. In the suspension layer, however, concentrations respond much slower to changes in near-bed velocity: at some distance from the bed concentrations increase and decrease on the time scale of the wave group, with a time delay relative to the peak wave within the wave group.
    Original languageEnglish
    Title of host publicationCoastal Dynamics '01
    Subtitle of host publicationProceedings of the Fourth Conference on Coastal Dynamics
    EditorsHans Hanson, Magnus Larson
    PublisherAmerican Society of Civil Engineers
    Pages313-322
    Number of pages10
    ISBN (Print)9780784405666
    DOIs
    Publication statusPublished - 11 Jun 2001
    Event4th ASCE Conference on Coastal Dynamics 2001 - Lund, Sweden
    Duration: 11 Jun 200115 Jun 2001

    Conference

    Conference4th ASCE Conference on Coastal Dynamics 2001
    Abbreviated titleCoastal Dynamics 2001
    CountrySweden
    CityLund
    Period11/06/0115/06/01

    Keywords

    • METIS-125193

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