Landslide tsunamis: Comparison between depth-averaged and Navier–Stokes models

Paris, Alexandre; Heinrich, Philippe; Abadie, Stéphane

doi:10.1016/j.coastaleng.2021.104022

Cited by 13 publications

(3 citation statements)

References 76 publications

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“…Davidson andWhalin 1974, Fuchs et al 2011), or well-benchmarked numercial simulations (e.g. Zweifel et al 2007, Xiao and Lin 2016, Kim et al 2020, Ghaïtanellis et al 2021, Paris et al 2021, Rauter et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Forces on a Vertical Dam due to Solitary Impulse Wave Run-Up and Overtopping

2023

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Impulse waves feature tsunami-like characteristics and are generated by very rapid mass wasting, including landslides and avalanches, into water bodies. In engineered reservoirs, these waves may run-up and overtop the dam, thereby exerting hydrostatic and -dynamic forces on its structure. For this work, solitary waves were applied as a proxy for impulse waves and the forces acting on vertical structures during wave run-up and overtopping were investigated with hydraulic laboratory experiments. The solitary waves were generated in a wave channel with a piston-type wave generator and the horizontal pressure forces at a vertical wall as well as a vertical dam-like structure were measured with multiple pressure sensors. The discrete pressure data were used to interpolate pressure distributions and the resulting horizontal forces. Empirical equations were derived, approximating the measured maximum forces and their respective centers of pressure within ±7% both for cases with and without wave overtopping. For small freeboards, already small relative wave amplitudes may exert forces similar to those induced by an earthquake as estimated with a pseudo-static approach.

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Section: Discussionmentioning

confidence: 99%

Forces on a Vertical Dam due to Solitary Impulse Wave Run-Up and Overtopping

2023

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“…Each fluid flow instance can be portrayed through a set of partial differential equations, with a multitude of integrated solvers to address these equations. Its capabilities encompass grid generation, case simulation, and the processing of output readings and post-processing [41]. To account for the influence of air during the landslide motion process, we opted for the interFoam solver among the multiphase flow solvers to simulate the movement of the landslide.…”

Section: Numerical Calculationmentioning

confidence: 99%

A 3D Two-Phase Landslide Dynamical Model on GIS Platform

Tian,

Wu,

Gao

2024

Applied Sciences

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The landslide dynamics model is one of the methods for evaluating landslide motion processes, contributing to disaster prevention and mitigation. With the advancement of science and technology, GIS has become the mainstream platform for landslide simulation. However, the three-dimensional movement of landslides is intricate, leading to a lack of methods for three-dimensional landslide numerical simulation on GIS platforms. In this paper, we propose a three-dimensional, two-phase landslide dynamics model. Through the proposed solution, three-dimensional modeling and numerical simulation of landslides can be achieved on GIS platforms. Simultaneously, drawing inspiration from the SPH kernel functions, we visualize the results of the three-dimensional model on the GIS platform. Simulation of the Yigong landslide demonstrates that our solution can realize three-dimensional landslide simulation on the GIS platform. Our model adeptly captures numerous details in the landslide motion process. However, constrained by the inherent limitations of the three-dimensional model, the model results are susceptible to numerical oscillations and diffusion, with the accuracy of the model being controlled by grid partitioning.

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“…Different CFD numerical methods used to simulate landslide-generated tsunamis, modelling the landslide body as a rigid impermeable model (e.g. Montagna et al, 2011;Whittaker et al, 2017;Kim et al, 2019a;Chen et al, 2020;Romano et al, 2020) or as a deformable/granular material Løvholt et al (2005); Abadie et al (2010); Ma et al (2015); Heller et al (2016); Shi et al (2016); Kim et al (2019b); Si et al (2018); ; Mulligan et al (2020); Franci et al (2020); Paris et al (2021); Rauter et al (2021Rauter et al ( , 2022; Lee and Huang (2022), modelling also real cases (La Palma, Canary Island, Abadie et al, 2012, Anak Krakatau (Indonesia, Grilli et al, 2019), and Lake Askja (Iceland, Rauter et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling of Tsunamis Generated by Granular Landslides in Openfoam

Romano,

Lara,

Barajas

et al. 2023

Int. Conf. Coastal. Eng.

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Landslide-generated tsunamis are a relevant source of hazard for coastal areas. In this paper, the preliminary modelling results of tsunamis generated by deformable landslides by using computational fluid dynamics (CFD) methods, in OpenFOAM, is presented. The numerical approach presented here consists in modelling the granular material by using a Coulomb viscoplastic rheology. This numerical model is applied to reproduce three literature benchmark cases (2D submerged, 2D and 3D subaerial, respectively). Some preliminary qualitative and quantitative numerical results, compared to the experimental ones, are presented in the paper.

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Landslide tsunamis: Comparison between depth-averaged and Navier–Stokes models

Cited by 13 publications

References 76 publications

Forces on a Vertical Dam due to Solitary Impulse Wave Run-Up and Overtopping

Forces on a Vertical Dam due to Solitary Impulse Wave Run-Up and Overtopping

A 3D Two-Phase Landslide Dynamical Model on GIS Platform

Numerical Modelling of Tsunamis Generated by Granular Landslides in Openfoam

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