FORMATION CONDITIONS OF BRICK-PATTERN RIPPLES IN OSCILLATORY WATER FLOW

DOI Web Site 11 References
  • LI Yunlong
    Interdiscip. Graduate School of Engineering Sciences, Kyushu University
  • SUGIHARA Yuji
    Interdiscip. Graduate School of Engineering Sciences, Kyushu University
  • LIU Jie
    Interdiscip. Graduate School of Engineering Sciences, Kyushu University
  • SANJOU Michio
    Disaster Prevention Research Institute, Kyoto University

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Description

<p> A regular and periodic three-dimensional bedform, called brick-pattern ripples, consisting of crests perpendicular to the flow direction and longitudinal bridges between their crests, appears under an oscillatory water flow in a certain condition. We made the characterization of brick-pattern ripples formed in an oscillatory water flow through systematic experimental results using a U-shaped oscillatory flow water tank. In addition, geometric properties and formation conditions of such ripples were examined on the basis of several dimensionless parameters. The formation diagram of brick-pattern ripples was experimentally found by using the parameters in comparisons with previous experimental and theoretical results.</p>

Journal

  • Journal of JSCE

    Journal of JSCE 13 (2), n/a-, 2025

    Japan Society of Civil Engineers

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