Numerical Simulations of Tsunami Wave Generation by Submarine Landslides: Validation and Sensitivity Analysis to Landslide Parameters

Sabeti, Ramtin; Heidarzadeh, Mohammad

doi:10.1061/(asce)ww.1943-5460.0000694

Cited by 9 publications

(2 citation statements)

References 49 publications

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“…Flow-3D excels in its free surface technology and efficient grid partitioning techniques [13,14] . Globally, Flow-3D has been used to simulate the evolution of flash floods [15] , the generation of pulse waves caused by landslides [16,17] , comparing and validating experimental values of water depth and flow velocity under different river curvature flow conditions, and estimating local erosion patterns [18,19] . Additionally, coupling methods such as Fluent-EDEM and PFC3D-FLAC3D are also employed for fluid-solid coupling simulations.…”

Section: Introductionmentioning

confidence: 99%

Research on simulation and modeling methods for road flood damage

Wang,

Xiang,

Huang

et al. 2024

Seventh International Conference on Traffic Engineering and Transportation System (ICTETS 2023)

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Road flood damage is one of the common disasters along rivers or in mountainous areas. In recent years, finite volume methods, finite difference methods, discrete element methods, and methods that involve coupling different approaches have been used for simulating road flood damage. Some of these methods have been validated through practical applications in engineering projects. This paper categorizes types of road flood damage, summarizes their causes and introduces some widely used simulation method for road flood damage. A comparative analysis was conducted to show the advantages and weaknesses of the different methods, which may be useful to future research on road resilience under flooding.

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Section: Introductionmentioning

confidence: 99%

Research on simulation and modeling methods for road flood damage

Wang,

Xiang,

Huang

et al. 2024

Seventh International Conference on Traffic Engineering and Transportation System (ICTETS 2023)

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“…FLOW3D software models commonly employed to simulate impulse waves generated by landslides include rigid body models, elasto-visco-plasticity models, drift-flux, and granular flow models (Flow Science Inc 2020). Sabeti and Heidarzadeh (2022) validated and applied the FLOW3D-Hydro model by using solid-block submarine landslides moving downward at a fixed slope angle of 45°. They conducted 177 simulations applying the validated model by using three different sliding block sizes for investigating the sensitivity of landslide-generated waves to the variations of different parameters.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of potential impulse waves generated by Mogu toppling rock slope at varying water levels in Lianghekou Reservoir, China

Chen,

Xu,

Zhang

et al. 2023

Preprint

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Reservoir impoundment and water level fluctuation often trigger slope instability and its secondary disasters, such as potential impulse waves, posing a serious threat to the safety of people along the reservoir and the dam area, causing economic losses and even catastrophic consequences. This study delves into a thorough field investigation and monitoring of engineering geological conditions and deformation mechanisms the Mogu toppling rock slope. Impoundment is the primary factor inducing slope deformation, and the cumulative displacement of sliding body has not converged, signifying potential instability. Coupling the elasto-visco-plasticity model and the RNG turbulence model in FLOW3D, an actual surge disaster near Lianghekou Reservoir dam area is reenacted to validate reliability of the numerical method. On this basis, a three-dimensional model is established to calculate potential impulse waves generated by Mogu toppling rock slope, and the risk of the dam is evaluated. Under varying water level conditions, the simulated heights of impulse waves do not surpass the dam elevation, demonstrating a satisfactory safety margin. Given the inherent danger of landslide-induced wave disasters, continuous attention is warranted, and preventive measures and suggestions are proposed to address these concerns. Additionally, the contributions of water level fluctuations to the head wave height, the run-up wave height on the opposite bank and the dam, and the attenuation rate of wave height along the river channel are explored. The results in this study present significant reference values for the early warning and prevention of comparable reservoir landslides and potential landslide-induced waves worldwide.

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Three-Dimensional Simulations of Subaerial Landslide-Generated Waves: Comparing OpenFOAM and FLOW-3D HYDRO Models

Sabeti,

Heidarzadeh,

Romano

et al. 2024

Pure Appl. Geophys.

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The recent destructive landslide tsunamis, such as the 2018 Anak Krakatau event, were fresh reminders for developing validated three-dimensional numerical tools to accurately model landslide tsunamis and to predict their hazards. In this study, we perform Three-dimensional physical modelling of waves generated by subaerial solid-block landslides, and use the data to validate two numerical models: the commercial software FLOW-3D HYDRO and the open-source OpenFOAM package. These models are key representatives of the primary types of modelling tools—commercial and open-source—utilized by scientists and engineers in the field. This research is among a few studies on 3D physical and numerical models for landslide-generated waves, and it is the first time that the aforementioned two models are systematically compared. We show that the two models accurately reproduce the physical experiments and give similar performances in modelling landslide-generated waves. However, they apply different approaches, mechanisms and calibrations to deliver the tasks. It is found that the results of the two models are deviated by approximately 10% from one another. This guide helps engineers and scientists implement, calibrate, and validate these models for landslide-generated waves. The validity of this research is confined to solid-block subaerial landslides and their impact in the near-field zone.

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Numerical Simulations of Tsunami Wave Generation by Submarine Landslides: Validation and Sensitivity Analysis to Landslide Parameters

Cited by 9 publications

References 49 publications

Research on simulation and modeling methods for road flood damage

Research on simulation and modeling methods for road flood damage

Numerical simulation of potential impulse waves generated by Mogu toppling rock slope at varying water levels in Lianghekou Reservoir, China

Three-Dimensional Simulations of Subaerial Landslide-Generated Waves: Comparing OpenFOAM and FLOW-3D HYDRO Models

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