ON THE WAVE RESISTANCE OF SURFACE-EFFECT SHIPS

Expressions for the wave resistance and free-surface disturbances induced by pressure fields in a uniform, rectilinear motion over a free surface are derived for linearized free-surface boundary conditions. The pressure is either uniform over the whole field or varies linearly near the edge of the pressure zone. The geometries considered are the rectangle, circle, semicircle and triangle, as well as a combination of rectangle and two semicircles. Numerical results are presented for the case of a rectangular constant-pressure distribution to bring into evidence the effect of aspect ratio and angle of yaw on wave resistance. Finally, the effect of the width of a linearly varying pressure zone near the edge of a pressure field consisting of a rectangular midzone and a semicircle at each extremity is investigated. By combining the various geometries studied here, it is possible to approximate a more general pressure distribution, and thus obtain an estimate of its induced wave disturbance and corresponding wave resistance.

  • Supplemental Notes:
    • Presented at the Annual Meeting of the Society of Naval Architects and Marine Engineers, New York, New York, November 13-15, 1975.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Tatinclaux, J C
  • Publication Date: 1975-11

Media Info

  • Features: References;
  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00127552
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Report/Paper Numbers: #3
  • Files: TRIS
  • Created Date: Nov 18 1975 12:00AM