The interaction of water waves with arrays of bottom-mounted, surface-piercing circular cylinders is investigated theoretically. The sidewall of each cylinder is porous and thin. Under the assumptions of potential flow and linear wave theory, a semi-analytical solution is obtained by an eigenfunction expansion approach first proposed for impermeable cylinders by Spring and Monkmeyer (1974), and later simplified by Linton and Evans (1990). Analytical expressions are developed for the wave motion in the exterior and all interior fluid regions. Numerical results are presented which illustrate the effects of various wave and structural parameters on the hydrodynamic loads and the diffracted wave field. It is found that the porosity of the structures may result in a significant reduction in both the hydrodynamic loads experienced by the cylinders and the associated wave runup.


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    Title :

    Water wave interaction with an array of bottom-mounted surface-piercing porous cylinders


    Additional title:

    Die Wasserwellen-Interaktion mit einer bodenbefestigten Anordnung von oberflächenperforierten porösen Zylindern


    Contributors:
    Williams, A.N. (author) / Li, W. (author)

    Published in:

    Ocean Engineering ; 27 , 8 ; 841-866


    Publication date :

    2000


    Size :

    26 Seiten, 20 Bilder, 14 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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