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A VOF-based numerical model for breaking waves in surf zone

  • QJ Peng
  • Hou Yijun
Article

Abstract

This paper introduces a numerical model for studying the evolution of a periodic wave train, shoaling, and breaking in surf zone. The model can solve the Reynolds averaged Navier-Stokes (RANS) equations for a mean flow, and thek-ε equations for turbulence kinetic energyk and turbulence dissipation rate ε. To track a free surface, the volume of fluid (VOF) function, satisfying the advection equation was introduced. In the numerical treatment, third-order upwind difference scheme was applied to the convection terms of the RANS equations in order to reduce the effect of numerical viscosity. The shoaling and breaking processes of a periodic wave train on gently sloping beaches were modeled. The computed wave heights of a sloping beach and the distribution of breaking wave pressure on a vertical wall were compared with laboratory data.

Key words

wave breaking Reynolds averaged Navier-Stokes equations volume of fluid method numerical model 

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Copyright information

© Science Press 2006

Authors and Affiliations

  1. 1.Institute of OceanologyChinese Academy of SciencesQingdaoChina

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