The theoretical foundation of a numerical method, called Fourier-Kochin-Galerkin method, for calculating wave loads on a ship, or an offshore structure in a current, is presented. The method circumvents the major difficulties associated with the Green function for time-harmonic free-surface flows at forward speed by adopting Kochin's approach, which essentially consists in using a Fourier representation of the potential. The hull of the ship or structure is divided into curved patches, and a discontinuous Galerkin solution procedure is employed for determining the potential within the patches. The required integrations over the patches are performed by subdividing the patches into flat triangular panels.
An approach to the calculation of wave loads on ships and floating structures
Ein Verfahren zur Berechnung der Wellen (Seegangs)-Belastungen bei Schiffen und schwimmenden Konstruktionen
Marine Structures ; 6 , 2/3 ; 223-239
1993
17 Seiten, 13 Quellen
Article (Journal)
English
Schiffsrumpf , schwimmende Plattform , Plattform (Meerestechnik) , Hydrodynamik , Strömungslehre , Strömungsgleichung , Wasserwelle , mechanische Beanspruchung , numerisches Verfahren , mathematisches Modell , Strömungsfeld , Potenzialströmung , Potenzialfunktion , Integration (Mathematik) , Lösung (Ergebnis) , belastetes Bauteil , Seegangsverhalten
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