Based on laboratory experiments and numerical simulations, the scale effect of Internal Solitary Wave (ISW) loads on spar platforms is investigated. First, the waveforms, loads, and torques on the spar model at a laboratory obtained by the experiments and simulations agree well with each other. Then, a prototype spar platform is simulated numerically to elucidate the scale effect. The scale effect for the horizontal forces is significant owing to the viscosity effect, whereas it is insignificant and can be neglected for the vertical forces. From the similarity point of view, the Froude number was the same for the scaled model and its prototype, while the Reynolds number increased significantly. The results show that the Morison equation with the same set of drag and inertia coefficients is not applicable to estimate the ISW loads for both the prototype and laboratory scale model. The coefficients should be modified to account for the scale effect. In conclusion, the dimensionless vertical forces on experimental models can be applied to the prototype, but the dimensionless horizontal forces of the experimental model are larger than those of the prototype, which will lead to overestimation of the horizontal force of the prototype if direct conversion is implemented.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Numerical and experimental study on the scale effect of internal solitary wave loads on spar platforms


    Beteiligte:
    Xu Wang (Autor:in) / Ji-Fu Zhou (Autor:in)


    Erscheinungsdatum :

    2020




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Experimental study of internal solitary wave loads on the semi-submersible platform

    Jingjing Zhang / Yi Liu / Ke Chen et al. | DOAJ | 2021

    Freier Zugriff

    Dynamic Behavior of Offshore Spar Platforms

    Agarwal, A. K. / Jain, A. K. / Indian Institute of Technology | British Library Conference Proceedings | 2001


    Spar Response Prediction using Numerical and Experimental Studies

    Chitrapu, A. S. / Gurumurthy, K. / Thiagarajan, K. et al. | British Library Conference Proceedings | 2001


    Wavelet analysis of the transient response of spar platforms

    Jordan, D.A. / Weggel, D.C. / Miksad, R.W. et al. | Tema Archiv | 1998


    Some observations on the heave behavior of spar platforms

    Fischer, F.J. / Gopalkrishnan, R. | Tema Archiv | 1998