WAVE FORCES ACTING ON A BLUNT SHIP WITH FORWARD SPEED IN OBLIQUE SEA (3RD REPORT)

A new numerical approach based on the 3-D panel method is presented for the estimation of wave forces acting on a blunt ship advancing in oblique short waves. The Spline approximation is effectively applied to the expression not only for the geometry of the ship surface but also of the velocity potential distribution on it, and the integral equation is solved directly with respect to the velocity potential itself instead of the source distribution. Employment of the Spline approximation makes it possible to take into account the line integral term and the effect of the steady disturbance on the realistic ship surface. Following a numerical test of the new method by comparison with other results based on isoparametric approximation or the analytical method, the new method is applied to the wave- making problem and it is confirmed that the unnatural solutions can be eliminated perfectly by employing the new method.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 176, Dec 1994, p 83 [16 p, 12 ref, 2 tab, 10 fig]
  • Authors:
    • Iwashita, H
    • Ito, A
  • Publication Date: 1994

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00710693
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM