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  • Sediment Incipience in Turbulence Generated in a Square Tank by a Vertically Oscillating Grid

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    Author(s)
    Liu, C
    Huhe, A
    Tao, L
    Griffith University Author(s)
    Tao, Longbin
    Year published
    2006
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    Abstract
    The failure of hydraulic structures in many estuaries and coastal regions around the world has been attributed to sediment transport and local scour. The sediment incipience in homogenous turbulence generated by oscillating grid is studied in this paper. The turbulent flow is measured by particle tracer velocimetry (PTV) technique. The integral length scale and time scale of turbulence are obtained. The turbulent flow near the wall is measured by local optical magnification. The sediment incipience is described by static theory. The relationship of probability of sediment incipience and the turbulent kinetic energy were ...
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    The failure of hydraulic structures in many estuaries and coastal regions around the world has been attributed to sediment transport and local scour. The sediment incipience in homogenous turbulence generated by oscillating grid is studied in this paper. The turbulent flow is measured by particle tracer velocimetry (PTV) technique. The integral length scale and time scale of turbulence are obtained. The turbulent flow near the wall is measured by local optical magnification. The sediment incipience is described by static theory. The relationship of probability of sediment incipience and the turbulent kinetic energy were obtained experimentally and theoretically. The distribution of the turbulent kinetic energy near the wall is found to obey the power law and the turbulent energy is further identified as the dynamic mechanism of sediment incipience.
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    Journal Title
    Journal of Coastal Research
    Volume
    SI 39
    Publisher URI
    http://www.cerf-jcr.org/
    Copyright Statement
    © 2006 Coastal Education and Research Foundtion, Inc. (CERF). Please refer to the Journal of Coastal Research for access to the definitive, published version. This Special Issue is not available online. This is the author-manuscript version of this paper.
    Subject
    Earth sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/11881
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    • Journal articles

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