A Mid Water Arch (MWA) is a subsea structure used in flexible riser and umbilical systems. Understanding the hydrodynamic properties and response of the MWA to environmental conditions is important in the design of such systems. In this study, these areas have been investigated through both experimental model scale testing and numerical simulations. To carry out the model scale testing it was necessary to develop two experimental methods; captured testing to determine the drag forces on the structure, and tethered testing to enable the offsets, rotations and tether tension loads to be resolved. The numerical simulations are comprised of Computational Fluid Dynamics (CFD) with ANSYS CFX to explore the drag forces on the MWA, hydrodynamic diffraction analyses with ANSYS AQWA to find the added mass of the MWA, and dynamic analyses with OrcaFlex to study the offsets and rotations of the MWA in the tethered arrangement. The model testing results were used for comparison and validation of the numerical simulations; namely, the captured testing and CFD studies, and the tethered testing and OrcaFlex analyses. The findings from this study have shown the significance of experimental testing for the purpose of investigating the hydrodynamic loads on a MWA structure.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hydrodynamic loads and response of a Mid Water Arch structure


    Contributors:

    Published in:

    Ocean Engineering ; 83 ; 76-86


    Publication date :

    2014


    Size :

    11 Seiten, 10 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Hydrodynamic Loads on Swath Hulls

    Hutchison, B. L. / Mathai, T. / Morgan, J. M. et al. | British Library Conference Proceedings | 1998


    Hydrodynamic loads on SWATH hulls

    Hutchison, B.L. / Mathai, T. / Morgan, J.M. et al. | Tema Archive | 1998


    Hydrodynamic Impact Loads on Ship Bow

    Jankowski, J. / Gorski, J. / Technical University of Szczecin | British Library Conference Proceedings | 2000


    Third-order hydrodynamic loads on an oscillating vertical cylinder in water

    Markiewicz, M. / Letkowski, P. / Mahrenholtz, O. | Tema Archive | 1999