SPH simulation of the 2007 Chehalis Lake landslide and subsequent tsunami

Alex Ghaïtanellis, Damien Violeau, Philip L.F. Liu, Thomas Viard

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

A multi-phase smoothed particle hydrodynamics (SPH) formulation in combination with a granular rheological model is applied to simulate the 2007 Chehalis Lake landslide and the subsequent tsunami. The model is implemented within the open-source 3D code GPUSPH. The lake geometry is built using the British Colombia Hydro (BCH) topography and bathymetry surveys, and the landslide initial geometry is reconstructed from pre- and post-failure geological profiles under the assumption of constant thickness across the entire width. The water and the landslide are treated as immiscible continua, discretized in two distinct sets of SPH particles with different mass and behaviour laws. The landslide material is modelled as a continuum whose shear stresses obey a friction law that takes its granular nature into consideration. A sensitive analysis for various physical parameters is carried out, and numerical results are checked by comparing run-up heights to BCH's surveys.

原文English
頁(從 - 到)863-887
頁數25
期刊Journal of Hydraulic Research
59
發行號6
DOIs
出版狀態Published - 2021

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 水科學與技術

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