Investigation of the ship-seabed interaction with a high-fidelity CFD approach

Shi, Weichao and Li, Mingxin and Yuan, Zhiming (2020) Investigation of the ship-seabed interaction with a high-fidelity CFD approach. Journal of Marine Science and Technology. ISSN 0948-4280

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    Abstract

    Ship-seabed interaction is highly critical to ship safety and ship performance when ship operates over shallow water with uneven seabed. However the prediction method for ship reaction is still yet to be fully developed. In this paper, a high-fidelity transient numerical simulation method with sliding mesh is developed based on computational fluid dynamics (CFD) to model a vessel passing a step bank, demonstrating to be a computational cost economical solution. The comprehensive numerical model is validated and verified against benchmarked experimental and numerical studies, which is proved to be highly accurate in predicting force characteristics and wave development. Meanwhile, during the research the impulse effect generated by the step bank was found to have striking effects on the wave elevation, wake development and vessel sinkage. Five regions on the behaviour of vessel sinkage are defined in the present work. According to the result, the vessel will encounter the extreme sinkage after a relatively long distance (12 L_pp at F_h2=0.519) passing the step bank instead of immediately.

    Creators(s): Shi, Weichao ORCID logoORCID: https://orcid.org/0000-0001-9730-7313, Li, Mingxin ORCID logoORCID: https://orcid.org/0000-0003-4933-3626 and Yuan, Zhiming ORCID logoORCID: https://orcid.org/0000-0001-9908-1813;
    Item type:Article
    ID code:74670
    Keywords:viscous CFD, ship-seabed interaction, coastal water, step bank, shallow water, Naval architecture. Shipbuilding. Marine engineering, Ocean Engineering
    Subjects:Naval Science > Naval architecture. Shipbuilding. Marine engineering
    Department:Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering
    Depositing user: Pure Administrator
    Date deposited:23 Nov 2020 11:19
    Last modified:13 Jan 2021 11:45
    URI:https://strathprints.strath.ac.uk/id/eprint/74670
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