NUMERICAL SOLUTION OF THE "DAWSON" FREE-SURFACE PROBLEM USING HAVELOCK SINGULARITIES

A method of solving the steady free-surface ship wave problem satisfying "Dawson's" double-body linearisation of the free-surface boundary condition, which employs distributed Havelock singularities on both the hull surface and the free surface is presented. The use of Havelock singularities, as opposed to Rankine singularities, allows the solution to be extended into the far-field without difficulties. The present technique combines the superior aspects of Rankine/Dawson methods in the calculation of nearfield waves and the far-field superiority of the Havelock methods. Encouraging results are presented for two simple hull forms, a submerged body of revolution and a Wigley hull.

• Supplemental Notes:
  • Naval Hydrodynamics, 18th Symposium; 19-24 August 1990; Ann Arbor, MI, USA. Sponsored by Office of Naval Res, USA, Univ. Michigan & National Res Council, USA. Pprs. Publ by National Academy Press Washington D.C., USA. 1991, p 259 [13 p, 5 ref, 1 tab, 23 fig]
• Authors:
  • Scragg, C
  • Talcott, J
• Publication Date: 1991

Language

• English

Subject/Index Terms

• TRT Terms: Boundary value problems; Free surface; Ship motion; Water waves; Wave resistance
• Uncontrolled Terms: Boundary conditions; Ship wash
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00701481
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM