WAVE EFFECTS OF A FREE SURFACE PIERCING HYDROFOIL

A lifting surface theory is developed for vertically oriented hydrofoils piercing a fluid free surface. The formulation, a singular integral equation, is shown to reduce to known limiting forms for the cases of zero and infinite Froude number. Conditions restricting the mathematical nature of acceptable foil loadings are given for the general case for finite nonzero aspect ratio and Froude number. Two simple foil loadings are numerically investigated, demonstrating the feasibility of a proposed technique for analyzing the dynamics of arbitrarily shaped free surface piercing hydrofoils.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Kern Jr, E C
• Publication Date: 1973-5

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Free surface; Hydrofoil boats; Hydrofoils; Vehicle design
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Free surface effects; Lifting surface theory; Surface piercing hydrofoils
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00048345
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: PhD Thesis
• Files: TRIS
• Created Date: Oct 31 1973 12:00AM