LINEAR THEORY ON WATER ENTRY AND EXIT PROBLEMS OF A VENTILATING THIN WEDGE

A simplified mathematical model is formed for the flow field caused by the ventilating blade of a partially submerged propeller. The model is formed to investigate the difference between the phases of entry and exit; that is, a two-dimensional flat-sided wedge and a two-dimensional cambered wedge entering a free surface and exiting at another free surface, located at a distance equivalent to the length of circular path of blade section in the water. Pressure and drag are calculated for a flat plate and a parabolic cambered wedge, each at the instantaneous position, by a conformal mapping technique. A great difference in pressure distributions between the phases of entry and exit is obtained.

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  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  USA  07306-2907
  • Authors:
    • Yim, B
  • Publication Date: 1974-3

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Filing Info

  • Accession Number: 00053703
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Contract Numbers: NR 062-426
  • Files: TRIS
  • Created Date: Apr 26 1974 12:00AM