A NEW APPROACH TO HIGH ASPECT RATIO SUPERCAVITATING HYDROFOILS

A three-dimensional cavity hydrofoil with a high aspect ratio is analyzed by a new lifting-line theory. Unlike Leehey's (1971) approach, which formulates the lifting-line theory from differential equations, the present theory has extracted the similar lifting-line theory from integral equations derived from the lifting-surface theory. The chief advantage of this method is that it is not necessary to match the inner and outer solutions. This lifting-line theory seems to be close to experimental results for the elliptic planform with aspect ratio 3 and 5, and for the rectangular planform with aspect ratio 6, in the case of sigma/alpha is approximately greater than 1, where sigma is the cavitation number and alpha the incidence of the foil.

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  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Kida, T
    • Miyai, Y
  • Publication Date: 1979-9

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Filing Info

  • Accession Number: 00301890
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 7 1979 12:00AM