NUMERICAL SIMULATION OF 3-D NONLINEAR WATER WAVE BY BOUNDARY ELEMENT METHOD IN THE CASE OF SUBMERGED BODIES

A boundary element method is developed for the 3-D nonlinear water wave problems. Triangular panels are used that can represent general 3-D shapes easily and accurately. All the variables are linearly approximated on each panel. The nonlinear free surface conditions are satisfied by finite difference approximation. The finite difference calculation is carried out in a mesh system finer than that used for the boundary element calculation. A new condition for the downstream open boundary is proposed. After several pilot computations for accuracy analysis, the waves and forces of a submerged sphere and a submerged ship-like body are calculated. Through the comparisons of the results with the analytical solution and those of experiment, it is found that the method is accurate and efficient.

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  • Supplemental Notes:
    • Journal article
  • Authors:
    • Qi, X
    • MORI, K
  • Publication Date: 1989-6

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  • Accession Number: 00658291
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM