DECOMPOSITION OF FREE-SURFACE EFFECTS INTO WAVE AND NEAR-FIELD COMPONENTS

The classical Fourier representation of free-surface effects, as a two-dimensional superposition of elementary waves, is expressed in terms of a non-oscillatory near-field (local) flow component defined by a double integral and a wave component given by a single integral along the curve(s) defined in the Fourier plane by the dispersion relations. This Fourier representation of free-surface effects is valid for an arbitrary distribution of sources and/or dipoles and for a wide class of water waves including time-harmonic and steady flows, with or without forward speed, in deep water or in uniform finite water depth. An illustrative application to the Green function of wave diffraction/radiation at low forward speed is presented.

• Supplemental Notes:
  • Ship Technology Research, v 42 n 4, Oct 1995, p 167 [19 p, 19 ref, 2 fig]
• Authors:
  • Noblesse, F
  • Chen
  • X-B
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Diffraction; Free surface; Green's function
• Old TRIS Terms: Wave diffraction; Wave radiation
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00718488
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1996 12:00AM