NEAR-FIELD NONLINEARITIES AND SHORT FAR-FIELD SHIP WAVES

The short divergent waves in the steady wave pattern of a ship are analysed on the basis of a linear far-field flow representation and a nonlinear near-field flow approximation. More precisely, the far-field wave spectrum is determined in a simple and practical manner by means of a waterline-integral approximation obtained from a modified Neumann-Kelvin integral representation; and the nonlinear near-field flow along the ship waterline is determined via a nonlinear correction defined by a simple analytical expression. Numerical calculations for the Wigley hull predict short divergent waves too steep to exist in reality within a significant sector in the vicinity of the ship track. The predicted waves also exhibit a well-defined peak at an angle from the ship track equal to about 1 degrees to 2 degrees.

  • Supplemental Notes:
    • Naval Hydrodynamics, 18th Symposium; 19-24 August 1990; Ann Arbor, MI, USA. Sponsored by Office of Naval Res, USA, Univ. Michigan & National Res Council, USA. Pprs. Publ by National Academy Press Washington D.C., USA. 1991, p 465 [12 p, 16 ref, 1 tab, 5 fig]
  • Authors:
    • Noblesse, F
    • Hendrix, D
  • Publication Date: 1991

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00716230
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Feb 28 1996 12:00AM