OPTIMAL SHAPE OF A PLANING SURFACE AT HIGH FROUDE NUMBER

A planing surface moving at high Froude number throws up a jet that is responsible for the leading term in the drag. By shaping the surface appropriately, the jet can be eliminated. The drag is thereby reduced by a factor of order (Fr) to the minus 2 power. The paper shows how this can be done for a two-dimensional planing surface consisting of two flat plates. It is found that the lengths of the plates must have a ratio dependent upon their angles of inclination. Then the angles that maximize the lift coefficient are determined.

• 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:
  • Ting, L
  • Keller, J B
• Publication Date: 1977-3

Media Info

• Features: References;
• Pagination: p. 40-43
• Serial:
  • Journal of Ship Research
  • Volume: 21
  • Issue Number: 1
  • 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: Drag; Froude number; Planing hulls
• Old TRIS Terms: Drag reduction; Effects; Planing surfaces
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00152332
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM