A VALIDATION STUDY OF THE MIXED FOIL CONCEPT FOR HIGH SPEED HYDROFOILS

A hydrodynamic validation study of the concept of the mixed foil has been carried out. A mixed foil is a streamlined hydrofoil equipped with a flap or other device which, above a certain speed, can be activated so as to change the flow around the foil into a supercavitating flow. At takeoff and at moderate speeds, a mixed foil is operated as a subcavitating foil; at high speeds, it is operated as a supercavitating foil. During high speed operations, a reduction in the wetted planform area of a mixed foil is proposed. Two hydrofoils which have as their sections plano-convex foils of thickness to chord ratios of 5% and 6% are used for the study.

  • Corporate Authors:

    Pennsylvania State University, University Park

    Applied Research Laboratory
    University Park, PA  USA  16802
  • Authors:
    • Wang, D P
    • Shen, Y T
  • Publication Date: 1975-6-18

Media Info

  • Pagination: 51 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128976
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: TM-75-171 Tech Memo
  • Contract Numbers: N00017-73-C-1418
  • Files: TRIS
  • Created Date: Jan 21 1976 12:00AM