FLUTTER OF SUPERCAVITATING HYDROFOILS--COMPARISON OF THEORY AND EXPERIMENT

Unsteady flow due to harmonic oscillations of a two-dimensional supercavitating flat-plate hydrofoil in a free jet of finite width has been analyzed using first-order perturbation theory. The hydrodynamic loading coefficients thus obtained were used to study the hydroelastic instabilities: flutter and divergence. In conjunction with the analytical work, an experimental program was carried out using a free-jet water tunnel. Special attention was given to the influence of the free surfaces and the point of separation on the critical flutter speed. With proper interpretation of the location of the separation point near the leading edge, the theory and the experimental data were shown to be in fairly good agreement.

• 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:
  • Song, CCS
• Publication Date: 1972-9

Media Info

• Features: References;
• Pagination: p. 153-166
• Serial:
  • Journal of Ship Research
  • Volume: 16
  • Issue Number: 3
  • 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: Boundary layer separation; Flutter; Flutter (Aeronautics); Hydrofoils; Supercavitating hydrofoils
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00041846
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Files: TRIS
• Created Date: Apr 6 1973 12:00AM