THE EFFECT OF CROSS-FLOW CONDITIONS ON THE WAVE DRIFT FORCES OF A SHIP SAILING IN WAVES

In this paper the theory and applications of a moored vessel oscillating in waves in the presence of a weak current is discussed. The theory is based on the extension of the small forward speed formulation of a translating oscillating source. The corresponding integral equations are derived for a source distribution over the mean wetted surface of the vessel. The effect of the disturbance of the vessel to the stationary potential is covered by an integration of this effect over the free surface. The results of calculations based on this small forward speed expansion is validated against results of model tests. These model tests cover situations such as a vessel floating in waves and current from head-on to bow quartering conditions. The vessel under investigation was a 200 kDWT tanker in 100% and in 40% loading condition. The results of the model tests showed that a reasonable correlation is obtained for the current angles 180o and 15o.

• Supplemental Notes:
  • ISOPE 95, 5th Intl Offshore & Polar Engng Conf: 11-16 June 1995; The Hague, The Netherlands. Sponsored by ISOPE, USA et al. Procs. Publ by ISOPE, ISBN 1-880653-19-2, Vol III, p 516 [10 p, 25 ref, 17 fig]
• Authors:
  • Huijsmans, R H
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Boundary value problems; Drift
• Old TRIS Terms: Drift forces; Wave forces on ships
• Subject Areas: Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00733966
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1997 12:00AM