Typical results obtained by a newly developed, nonlinear time domain hybrid method for simulating large amplitude motions of ships advancing with constant forward speed in waves are presented. The method is hybrid in the way of combining a time-domain transient Green function method and a Rankine source method. The present approach employs a simple double integration algorithm with respect to time to simulate the free-surface boundary condition. During the simulation, the diffraction and radiation forces are computed by pressure integration over the mean wetted surface, whereas the incident wave and hydrostatic restoring forces/moments are calculated on the instantaneously wetted surface of the hull. Typical numerical results of application of the method to the seakeeping performance of a standard containership, namely the ITTC S175, are herein presented. Comparisons have been made between the results from the present method, the frequency domain 3D panel method (NEWDRIFT) of NTUA-SDL and available experimental data and good agreement has been observed for all studied cases between the results of the present method and comparable other data.


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    Title :

    Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves


    Contributors:


    Publication date :

    2011




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves

    Liu, Shukui / Papanikolaou, Apostolos D. | Online Contents | 2011


    Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves

    Liu, Shukui / Papanikolaou, Apostolos D. | Online Contents | 2011



    Time-Domain Analysis of Large-Amplitude Responses of Ships in Waves

    Fonseca, N. / Guedes Soares, C. | British Library Conference Proceedings | 1998