Articles | Volume 21, issue 4
Nat. Hazards Earth Syst. Sci., 21, 1229–1245, 2021
https://doi.org/10.5194/nhess-21-1229-2021
Nat. Hazards Earth Syst. Sci., 21, 1229–1245, 2021
https://doi.org/10.5194/nhess-21-1229-2021

Research article 20 Apr 2021

Research article | 20 Apr 2021

An efficient two-layer landslide-tsunami numerical model: effects of momentum transfer validated with physical experiments of waves generated by granular landslides

Martin Franz et al.

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Cited articles

Abadie, S., Morichon, D., Grilli, S., and Glockner, S.: Numerical simulation of waves generated by landslides using a multiple-fluid Navier-Stokes model, Coastal Eng., 57, 779–794, 2010. 
Bosa, S. and Petti, M.: Shallow water numerical model of the wave generated by the Vajont landslide, Environ. Model. Softw., 26, 406–418, https://doi.org/10.1016/j.envsoft.2010.10.001, 2011. 
Clous, L. and Abadie, S.: Simulation of energy transfers 935 in waves generated by granular slides, Landslides, 16, 1663–1679,, 2019. 
Enet, F. and Grilli, S. T.: Experimental study of tsunami generation by three-dimensional rigid underwater landslide, J. Waterw. Port Coast., 133, 442–454, https://doi.org/10.1061/(ASCE)0733-950X(2007)133:6(442), 2007. 
Fischer, J. T., Kowalski, J., and Pudasaini, S. P.: Topographic curvature effects in applied avalanche modeling, Cold Reg. Sci. Technol., 74, 21–30, https://doi.org/10.1016/j.coldregions.2012.01.005, 2012. 
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Short summary
A landslide-generated tsunami is a complex phenomenon that involves landslide dynamics, wave dynamics and their interaction. This phenomenon threatens numerous lives and infrastructures around the world. To assess this natural hazard, we developed an efficient numerical model able to simulate the landslide, the momentum transfer and the wave all at once. The good agreement between the numerical simulations and physical experiments validates our model and its novel momentum transfer approach.
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