DIFFRACTION OF WAVES AROUND A SHIP

The diffraction problem of a fixed slender ship in incident regular sinusoidal deep-sea waves coming from any direction is formulated. The waves are assumed to be of the same order of magnitude as the beam of the ship. Zero Froude number is assumed. The boundary-value problem is linearized with respect to the wave amplitude and solved by the method of matched asymptotic expansions. A solution valid for all wave headings is found. The solution involves solving a two-dimensional Helmholtz equation problem for cross sections along the ship. The Helmholtz equation problem is solved by a new fast integral representation method. Numerical solution procedures are given. The pressure distribution for different wave headings and wave lengths is calculated and compared with experiments. The agreement between theory and experiments is found to be satisfactory.

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  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  USA  07306-2907
  • Authors:
    • Liapis, N
    • Faltinsen, O M
  • Publication Date: 1980-9

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Filing Info

  • Accession Number: 00319836
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 27 1980 12:00AM