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A corrected 3-D SPH method for breaking tsunami wave modelling

Author

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  • Jinsong Xie
  • Ioan Nistor
  • Tad Murty

Abstract

A 3-D large eddy simulation model that was first transformed to smoothed particle hydrodynamics (LES-SPH)-based model was employed to study breaking tsunami waves in this paper. LES-SPH is a gridless (or mesh-free), purely Lagrangian particle approach which is capable of tracking the free surface of violent deformation with fragmentation in an easy and accurate way. The Smagorinsky closure model is used to simulate the turbulence due to its simplicity and effectiveness. The Sub-Particle Scale scheme, plus the link-list algorithm, is applied to reduce the demand of computational power. The computational results show that the 3-D LES-SPH model can capture well the breaking wave characteristics. Spatial evolution features of breaking wave are presented and visualized. The detailed mechanisms of turbulence transport and vorticity dynamics are demonstrated as well. This application also presents an example to validate the SPH model. Copyright Springer Science+Business Media B.V. 2012

Suggested Citation

  • Jinsong Xie & Ioan Nistor & Tad Murty, 2012. "A corrected 3-D SPH method for breaking tsunami wave modelling," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 60(1), pages 81-100, January.
    • Handle: RePEc:spr:nathaz:v:60:y:2012:i:1:p:81-100
    DOI: 10.1007/s11069-011-9954-x
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    Cited by:

    1. Huaxing Liu & Jing Li & Songdong Shao & Soon Tan, 2015. "SPH modeling of tidal bore scenarios," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(2), pages 1247-1270, January.

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