THE EFFECT OF THE STEADY PERTURBATION POTENTIAL ON THE MOTIONS OF A SHIP SAILING IN RANDOM SEAS

This paper shows results of model tests and calculations of the wave drift forces on a 200,000 dwt tanker and on a half-immersed sphere. The theory of small forward-speed motion computations is extended in order to allow larger horizontal distances in the Green's functions by deriving a proper asymptotic expansion of the low-speed Green's function. An alternative formulation for the wave drift forces is derived, based on the momentum balance derivations of Newman and Maruo. This formulation is also obtained for the small forward-speed case. Drift forces for both the tanker and the sphere are illustrated graphically.

Media Info

  • Features: References;
  • Pagination: 15p., incl. discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00661087
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM