FORCES AND MOMENTS ON A SHIP MOVING IN A SHALLOW CHANNEL

The method of matched asymptotic expansions is applied to the problem of a ship moving with constant velocity in a channel of rectangular cross section. The depth of the channel is assumed small so that a linearized shallow-water solution is developed. The ship is assumed to be slender and is replaced in the outer region by a distribution of sources and vortices. As in earlier theories for slender bodies translating in shallow water, the source strength is proportional to the change in cross-sectional area of the ship. An integral equation must be solved to find the vortex strength. Using the source and vortex strengths, expressions are developed for the side force, yaw moment, sinkage, and trim. Numerical results are presented which show good agreement with experimental results.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00224502
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Beck, R F
• Publication Date: 1977-6

Media Info

• Features: References;
• Pagination: p. 107-119
• Serial:
  • Journal of Ship Research
  • Volume: 21
  • Issue Number: 2
  • Publisher: Society of Naval Architects and Marine Engineers
  • ISSN: 0022-4502
  • EISSN: 1542-0604
  • Serial URL: https://onepetro.org/jsr

Subject/Index Terms

• TRT Terms: Maneuvering; Navigation; Thinness
• Old TRIS Terms: Restricted water operation; Shallow water effects; Slender bodies
• Subject Areas: Marine Transportation; Terminals and Facilities; Vehicles and Equipment;

Filing Info

• Accession Number: 00165468
• Record Type: Publication
• Source Agency: Journal of Ship Research
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM