TWO-DIMENSIONAL BASE-VENTED HYDROFOILS NEAR A FREE SURFACE: INFLUENCE OF THE VENTILATION NUMBER

The method of matched asymptotic expansions is used to analyze the flow around a base-vented lifting foil with rounded nose beneath a free surface. The foil is defined numerically. Results concerning the lift and drag coefficients and the limiting values of incidences without cavitation are compared with experiments. The relation between the cavity length and the ventilation number at several depths of submergence is given in the case of a symmetrical wedge: it agrees with the experimental one except by a nearly constant coefficient.

• Supplemental Notes:
  • ASME Symposium on Cavity Flows, Proceeding, Fluids Eng Conf, Minneapolis, Minn., May 5-7, 1975.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • ROWE, A
  • Michel, J M
• Conference:
  • ASME Symposium on Cavity Flows, Proceeding, Fluids Eng Conf, Minneapolis, Minn., May 5-7, 1975.
• Publication Date: 1975

Media Info

• Features: References;
• Pagination: p. 69-78

Subject/Index Terms

• TRT Terms: Free surface; Hydrofoils; Ventilation systems
• Old TRIS Terms: Cavitating hydrofoils; Free surface effects; Ventilated hydrofoils
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00127427
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 18 1975 12:00AM