It is first shown that the two-dimensional linearized ship wave problem can be recast as the sum of a radiation and a diffraction problem for simple harmonic waves. Each problem can be solved by a hybrid element method (HEM) where conventional finite elements are used near the body and analytical solutions are used in the remaining infinite regions (super-elements). Variational principles which incorporate the matching conditions between regular and super-elements as natural conditions are derived Numerical examples are presented. The theoretical aspects for extending the above ideas to a three-dimensional ship wave problem are also described.


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    Title :

    A hybrid element method for steady linearized free-surface flows


    Additional title:

    Eine hybride Elemente Methode fuer stationaere, lineare Stroemungen mit freier Oberflaeche


    Contributors:
    Mei, C.C. (author) / Chen, H.S. (author)

    Published in:

    Publication date :

    1975


    Size :

    24 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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