WAVE-INDUCED PRESSURES ON SHIPS AT HIGH FORWARD SPEEDS IN HEAD SEAS

Authors
  1. Ando, S.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The diffraction problem for ships is reformulated by taking the influence of steady ship-generated waves into account. In the present formulation, the steady free surface deformed by the ship-generated waves in the physical space is transformed into a plane in the computational domain in which the linear boundary-value problem is solved. The wave-induced pressures thus predicted show better agreement with the measurements at high forward speeds than those predicted by the standardformulation in which steady perturbation of the free surface is neglected. (Slender-body theory and the method of asymptotic expansions were used to obtain the approximate solutions for both formulations in this study). Although only the head-wave case was considered here, this approach is applicable to the diffraction of oblique waves as well. TRUNCATED
Report Number
DREA-92-103 —
Date of publication
15 Oct 1992
Number of Pages
41
DSTKIM No
93-00134
CANDIS No
127375
Format(s):
Hardcopy;Originator's fiche received by DSIS

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