TY - JOUR
T1 - SPH simulation of the 2007 Chehalis Lake landslide and subsequent tsunami
AU - Ghaïtanellis, Alex
AU - Violeau, Damien
AU - Liu, Philip L.F.
AU - Viard, Thomas
N1 - Funding Information:
We would like to thank EDF CIH for their technical support and BC Hydro for providing the fieldwork data. We would like to thank Électricité de France for a research grant to National University of Singapore to carry out the reported research work.
Publisher Copyright:
© 2021 International Association for Hydro-Environment Engineering and Research.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
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U2 - 10.1080/00221686.2020.1844814
DO - 10.1080/00221686.2020.1844814
M3 - Article
AN - SCOPUS:85099378138
SN - 0022-1686
VL - 59
SP - 863
EP - 887
JO - Journal of Hydraulic Research
JF - Journal of Hydraulic Research
IS - 6
ER -