EXPERIMENTAL STUDY OF THE EFFECTS OF SWEEP ON HYDROFOIL LOADING AND CAVITATION

An experimental program was conducted to investigate the relationship of sweep angle to cavitation inception on hydrofoils and to deterioration of hydrofoil performance due to cavitation. Tests were carried out in a water tunnel on four constant-chord semispan hydrofoil models with sweep angles of 0, 15, 30, and 45 degrees, respectively. Measurements of lift and drag were made, varying incidence and cavitation number for each model. The results obtained show a considerable increase in speed for cavitation inception with increasing sweep angle. Also, the speed for effectively subcavitated operation, as measured by performance, increased significantly with increasing sweep angle. The latter gains were in evidence from a determination of the variation with forward speed of maximum lift-drag ratio and of drag of constant lift.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  USA  10019
  • Authors:
    • Crimi, P
  • Publication Date: 1970-1

Media Info

  • Pagination: p. 3-9
  • Serial:

Subject/Index Terms

  • TRT Terms: Water tunnels
  • Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

  • Accession Number: 00005550
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Nov 25 1970 12:00AM