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Journal of Hydrodynamics

, Volume 18, Issue 1, pp 89–92 | Cite as

Boussinesq-type modeling in surf zone using mesh-less least-square-based finite difference method

  • Ben-long Wang
  • Yuan-qing Zhu
  • Zhi-ping Song
  • Hua Liu
Session B1

Abstract

Combining mesh-less finite difference method and least square approximation, a new numerical model is developed for highly dispersive and fully nonlinear Boussinesq equations in two horizontal dimensions. The 3rd order truncated series solution of the Laplace equation is employed to approximate the velocity distribution in the vertical plane. The linear properties of the wave model are discussed with Fourier analysis. It is shown that the model is suitable to predict the propagation of water waves at the range of 0 ≤ kh ≤ 10 for both the linear dispersion characteristic and shoaling gradient. Preliminary verifications of the numerical model are given for nonlinear wave shoaling problems, wave run-up on conical island. The numerical results agree well with the experimental data available in the literature.

Key words

boussinesq equations wave runup meshless method 

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Copyright information

© China Ship Scientific Research Center 2006

Authors and Affiliations

  • Ben-long Wang
    • 1
  • Yuan-qing Zhu
    • 2
  • Zhi-ping Song
    • 2
  • Hua Liu
    • 1
  1. 1.Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Earthquake Administration of Shanghai MunicipalityShanghaiChina

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