NONLINEAR HYDRODYNAMIC FORCES ACTING ON TWO DIMENSIONAL BODIES (1ST REPORT, DIFFRACTION PROBLEM)

A new method which simplifies the calculation of higher-order hydordynamic forces is proposed. Solving the integral equation on boundary surfaces including the free-surface by this method, the non-linear terms on free-surface may be directly computed. Making use of this method, the diffraction potentials are calculated up to the second-order terms in two-dimensional problems. Results obtained are as follows: (1) The numerical results by the method agree well with existing results in radiation and diffraction linear problems. (2) Second-order diffraction forces due to non-linear free-surface boundary condition is nearly proportional to the wave-number of incident wave. (3) Total second-order diffraction forces computed by the method show good coincidence with the experimental results.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05148499
• Corporate Authors:

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • Kyozuka, Y
• Publication Date: 1980-12

Media Info

• Pagination: p. 45-53
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 148
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Boundary layer; Diffraction; Force; Free surface; Hydrodynamic pressure; Waves
• Uncontrolled Terms: Wave forces
• Old TRIS Terms: Boundary layer theory; Free surface effects; Hydrodynamic forces
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00330517
• Record Type: Publication
• Files: TRIS
• Created Date: May 21 1981 12:00AM