Coupled systems mechanics

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Hydrodynamics prediction of a ship in static and dynamic states

  • Du, P. (Laboratoire Roberval, UMR-CNRS 7337, Sorbonne Universites, Universite de Technology de Compiegne, Centre de recherches Royallieu) ;
  • Ouahsine, A. (Laboratoire Roberval, UMR-CNRS 7337, Sorbonne Universites, Universite de Technology de Compiegne, Centre de recherches Royallieu) ;
  • Sergent, P. (CEREMA-134, rue de Beauvais)
  • Received : 2017.06.24
  • Accepted : 2017.07.12
  • Published : 2018.04.25
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Abstract

The ship hydrodynamics in static and dynamic states were investigated using 3-dimensional numerical simulations. The static case simulated a fixed ship, while the dynamic case considered a ship with free sinkage and trim using the mesh morphing technique. High speed was found to increase the wave elevation around the ship. Compared with the static case, the dynamic case seemed to generate higher waves near the bow and after the stern. The frictional resistance was found be to more dominant. However, the pressure resistance became gradually important with the increase of the ship speed. The trim and sinkage were also analyzed to characterize the ship hydrodynamics in the dynamic state.

Keywords

Acknowledgement

Supported by : China Scholarship Council (CSC)

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