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
- TRT Terms: Mathematical analysis; Ship motion; Water waves; Wave resistance
- Uncontrolled Terms: Ship wash
- Old TRIS Terms: Kelvin waves
- Subject Areas: Hydraulics and Hydrology; Marine Transportation;
Filing Info
- Accession Number: 00716230
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Feb 28 1996 12:00AM