A numerical method that coupled a Reynolds-averaged Navier-Stokes solver with a quasi-static and a dynamic mooring model was employed and compared. Decay tests of the freely floating and the moored buoy in calm water determined the system's linear and quadratic damping characteristics. In regular waves, predicted heave and pitch amplitudes and high-frequency surge amplitudes based on the quasi-static mooring model were similar to those based on the dynamic mooring model and similar to comparable measurements. However, the low-frequency surge and pitch motions based on the quasi-static model deviated significantly from the corresponding motions based on the dynamic model and from measurements. In irregular waves, buoy motion amplitudes, especially in surge, based on the quasi-static model were overpredicted. The accurate evaluation of the moored buoy in irregular waves, especially when the moored buoy underwent large translations, was possible only by accounting also for the dynamic loads acting on the mooring lines.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparative study of mathematical models for mooring systems coupled with CFD



    Published in:

    Publication date :

    2021-10-21


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Comparative study on mooring line dynamic loading

    Brown, D.T. / Mavrakos, S. | British Library Online Contents | 1999


    Simplifying mooring systems

    Tema Archive | 1985


    Automated Mooring Systems

    Jørgensen, Ulrik / Bellingmo, Pauline Røstum / Mørkrid, Odd Erik | TIBKAT | 2023

    Free access

    IMPROVED MOORING SYSTEMS

    HOVLAND ERLEND | European Patent Office | 2019

    Free access