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  • Ocean waves propagating over a porous seabed of finite thickness

    Author(s)
    Lee, TC
    Tsai, CP
    Jeng, DS
    Griffith University Author(s)
    Jeng, Dong-Sheng
    Year published
    2002
    Metadata
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    Abstract
    In the past few decades, considerable efforts have been devoted to the phenomenon of wave-seabed interaction. However, conventional investigations for determining wave characteristics have been focused on the wave nonlinearity. On the other hand, most previous works have been only concerned with the seabed response under the wave pressure, which was obtained from the assumption of a rigid seabed. In this paper, the inertia forces and employing a complex wave number are considered in the whole problem. Based on Biot's poro-elastic theory, the problem of wave-seabed interaction is first treated analytically for a homogeneous ...
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    In the past few decades, considerable efforts have been devoted to the phenomenon of wave-seabed interaction. However, conventional investigations for determining wave characteristics have been focused on the wave nonlinearity. On the other hand, most previous works have been only concerned with the seabed response under the wave pressure, which was obtained from the assumption of a rigid seabed. In this paper, the inertia forces and employing a complex wave number are considered in the whole problem. Based on Biot's poro-elastic theory, the problem of wave-seabed interaction is first treated analytically for a homogeneous bed of finite thickness and a new wave dispersion relationship is also obtained, in which the soil characteristics are included. The numerical results indicate that the effects of soil parameters significantly affect the wave characteristics (such as the damping of water wave, wave length and wave pressure). Furthermore, the effects of inertia forces on the wave-induced seabed response cannot always be ignored under certain combination of wave and soil conditions.
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    Journal Title
    Ocean Engineering
    Volume
    29
    DOI
    https://doi.org/10.1016/S0029-8018(01)00078-6
    Subject
    Oceanography
    Civil Engineering
    Maritime Engineering
    Publication URI
    http://hdl.handle.net/10072/6663
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    • Journal articles

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