Edge scour in current adjacent to stone covers

Thor Ugelvig Petersen, B. Mutlu Sumer, Knud Erik Meyer, Jørgen Fredsøe, Erik Damgaard Christensen

    Research output: Contribution to conferencePaperResearchpeer-review


    The present paper reports some early results of an experimental investigation of edge scour in currents.
    Two kinds of measurements are made (1) Particle Image Velocimetry (PIV) measurements of secondary
    currents that take place near a junction between the stone cover and the sand bed in a clear-water
    experiment; and (2) scour measurements in actual scour experiment in the live-bed regime.
    The early results indicate that edge scour in a steady current propagating in-line with a stone layer is
    caused by the combined action of two effects; (1) Primary flow and (2) Secondary flow. The primary flow
    stirs up the sediment and puts into suspension, and the secondary flow carries it away from the junction
    between the stone layer and the sand bed, resulting in a scour hole forming adjacent to the toe of the stone
    Original languageEnglish
    Publication date2012
    Number of pages8
    Publication statusPublished - 2012
    EventICSE-6: 6th International Conference on Scour and Erosion - Paris, France
    Duration: 27 Aug 201231 Aug 2012



    Bibliographical note



    • Edge scour
    • Cover stones
    • Steady current
    • Scour protection
    • Coastal structures
    • Offshore structures
    • Scour
    • Offshore wind farm


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