Show simple item record

dc.contributor.authorBregoli, Francesco
dc.contributor.authorMedina Iglesias, Vicente César de
dc.contributor.authorBateman Pinzón, Allen
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationBregoli, F.; De Medina, V.; Bateman, A. The energy transfer from granular landslides to water bodies explained by a data-driven, physics-based numerical model. "Landslides", 29 Octubre 2020,
dc.description.abstractLandslides falling into water can trigger tsunamis, which are particularly destructive in the proximity of the landslide impact and in narrow water bodies. The energy transfer mechanism between landslide and water wave is complex, but its understanding is of fundamental importance for the numerical modeling which aims to predict the induced wave hazard. In order to study the involved physical processes, we set up an experimental facility consisting of a landslide generator releasing gravel at high speed in a wave basin. With the aim of estimating the landslide–wave energy transfer, we implemented a simplified 1D conceptual model of landslide motion, including the 3D landslide deformations. We optimized the model with the experimental results. The model results explain that the deformable landslide has an average drag coefficient of 1.26 and a relatively inefficient energy transfer from landslide to wave. Of the landslide energy at impact, the 52% is dissipated by Coulomb basal friction between the slide and the water basin bottom, 42% is dissipated by other processes, including turbulence, and only the remaining 6% is transferred to the wave thus formed.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshWater waves
dc.subject.otherDrag coefficient
dc.subject.otherEnergy transfer
dc.subject.otherGranular landslide
dc.subject.otherLandslide tsunami
dc.subject.otherImpulse wave
dc.subject.otherPhysical-based numerical model
dc.titleThe energy transfer from granular landslides to water bodies explained by a data-driven, physics-based numerical model
dc.subject.lemacOnes d'aigua
dc.contributor.groupUniversitat Politècnica de Catalunya. GITS - Modelització Integral de Conques i Transport de Sediments
dc.contributor.groupUniversitat Politècnica de Catalunya. CREMIT - Centre de Recerca de Motors i Instal·lacions Tèrmiques
dc.contributor.groupUniversitat Politècnica de Catalunya. CRAHI - Centre de Recerca Aplicada en Hidrometeorologia
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorBregoli, F.; De Medina, V.; Bateman, A.

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain