A Coastal Processes Model Based on Time-Domain Boussinesq Equations.

Abstract

Based on time domain Boussinesq equations, a comprehensive model is constructed to simulate wave shoaling, wave breaking and wave runup in coastal regions. To illustrate the accuracy of various forms of Boussinesq models for large effect of nonlinearity, solitary wave solutions corresponding to several height to depth ratios are obtained numerically. Comparisons of permanent solutions are made between Boussinesq models and other existing closed form expressions. Additional energy dissipation terms are included in the Boussinesq equations to account for the effects of wave breaking and bottom friction, which play an important role for wave transformation in surf zone and swash zone areas. Model results model are compared to data from a laboratory study of random wave breaking over a constant slope (Mase and Kirby, 1992). Good agreement between numerical results and experimental data is found.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1996
Accession Number
ADA308860

Entities

People

  • Ge Wei
  • James T Kirby

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Agreements
  • Buildings And Structures
  • Coastal Regions
  • Determinants (Mathematics)
  • Dissipation
  • Dynamics
  • Equations
  • Experimental Data
  • Friction
  • Regions
  • Research Facilities
  • Solitons
  • Time Domain
  • Waves

Fields of Study

  • Mathematics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Coastal Oceanography
  • Computational Modeling and Simulation