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  • Numerical study for waves propagating over a porous seabed around a submerged permeable breakwater: PORO-WSSI II model

    Author(s)
    Zhang, J-S
    Jeng, D-S
    Liu, PL-F
    Griffith University Author(s)
    Jeng, Dong-Sheng
    Year published
    2011
    Metadata
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    Abstract
    The phenomenon of the wave, seabed and structure interactions has attracted great attentions from coastal geotechnical engineers in recent years. Most previous investigations have based on individual approaches, which focused on either flow region or seabed domain. In this study, an integrated model (PORO-WSSI II), based on the Volume-Averaged/Reynolds-Averaged Navier-Stokes (VARANS) equations and Biot's poro-elastic theory, is developed to investigate the mechanism of the wave-permeable structure-porous seabed interactions. The new model is verified with the previous experimental data. Based on the present model, parametric ...
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    The phenomenon of the wave, seabed and structure interactions has attracted great attentions from coastal geotechnical engineers in recent years. Most previous investigations have based on individual approaches, which focused on either flow region or seabed domain. In this study, an integrated model (PORO-WSSI II), based on the Volume-Averaged/Reynolds-Averaged Navier-Stokes (VARANS) equations and Biot's poro-elastic theory, is developed to investigate the mechanism of the wave-permeable structure-porous seabed interactions. The new model is verified with the previous experimental data. Based on the present model, parametric studies have been carried out to investigate the influences of wave, soil and structure parameters on the wave-induced pore pressure. Numerical results indicated: (i) longer wave period and larger wave height will obviously induce a higher magnitude of pore pressure at the leading edge of a breakwater; (ii) after a full wave-structure interaction, the magnitude of pore pressure below the lee side of a breakwater decreases with an increasing structure porosity while it varies dramatically with a change of structure height; and (iii) the seabed thickness, soil permeability and the degree of saturation can also significantly affect the dynamic soil behaviour.
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    Journal Title
    Ocean Engineering
    Volume
    38
    Issue
    7
    DOI
    https://doi.org/10.1016/j.oceaneng.2010.10.018
    Subject
    Civil Geotechnical Engineering
    Oceanography
    Civil Engineering
    Maritime Engineering
    Publication URI
    http://hdl.handle.net/10072/63821
    Collection
    • Journal articles

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