OBLIQUE WATER ENTRY AND EXIT OF A FULLY VENTILATED FOIL

The oblique entry of a two-dimensional, fully ventilated foil into a horizontal layer of water of arbitrary thickness is considered. When the thickness of the layer is finite, exit of the foil from the layer is studied. The present work is an extension of a previous one, in which only vertical entry and exit of the foil were considerd. The consideration of oblique entry makes the present solution useful in studying not only the advance ratio effect on a partially submerged supercavitating propeller but also many other problems, such as the high-speed water entry and exit of a wing or a control surface, the operation of a high-speed hydrofoil in a high sea state. The results obtained in this work indicate that the force and moment coefficients of a foil decrease as the advance ratio is reduced.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00224502
• Supplemental Notes:
  • Original report available from NTIS, AD-A065007/7ST.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Wang, D P
• Publication Date: 1979-3

Media Info

• Pagination: p. 43-54
• Serial:
  • Journal of Ship Research
  • Volume: 23
  • 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: Cavitation; Cavitation erosion; Flow fields; Foil; Free surface; High speed craft; Hydrodynamic pressure; Hydrofoils; Pressure; Propeller blades; Supercavitating hydrofoils; Supercavitating propellers; Two dimensional flow; Ventilation systems
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Cavitating hydrofoils; Free surface effects; Hydrodynamic forces; Ventilated hydrofoils
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00189424
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Files: TRIS
• Created Date: Apr 25 1979 12:00AM