A NEW APPROACH TO MODELLING BREAKING WAVE FORCES ON STRUCTURES

A new theoretical model for the numerical estimation of breaking wave forces on wall-type structures is presented. The computational model is based on an unsteady, two dimensional, viscous, partially compressible fluid flow description. The initial fluid surface and water particle kinematics are defined by a second order solitary wave equation. A pressure-Schrodinger equations has been derived using continuity and momentum equations to estimate water particle pressure, which is applicable for partially compressible fluid flow. In the fluid region where the particle velocity is less than wave celerity, the particle pressure is estimated using pressure-Poisson equation, as in the case of an incompressible, viscous fluid flow formulation. A volume of fluid function is used to compute the fluid surface at any given time step. The results from the computational model where compared with the existing solutions for incompressible viscous fluid flow computations for breaking wave pressure by letting the air volume fraction to be zero. The computations for waves with lower volume fraction of air, progressing over a uniform slope in the presence of a vertical wall-type structure is presented and results are promising for incorporating further refinements to the solution of breaking wave propagation and pressure estimation.

  • Supplemental Notes:
    • OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1306-1. Vol I, Pt A, p 213 [9 p, 26 ref, 5 fig]
  • Authors:
    • Arunachalam, A V
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717741
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM