dc.contributor.author | Irgens, Fridtjov | |
dc.contributor.author | Schieldrop, Bonsak | |
dc.contributor.author | Harbitz, Carl Bonnevie | |
dc.contributor.author | Domaas, Ulrik | |
dc.contributor.author | Opsahl, Runar | |
dc.date.accessioned | 2023-09-19T17:26:27Z | |
dc.date.available | 2023-09-19T17:26:27Z | |
dc.date.issued | 1998 | |
dc.identifier.issn | 1727-5644 | |
dc.identifier.uri | https://hdl.handle.net/11250/3090613 | |
dc.description.abstract | Two models simulating snow avalanches impacting retaining dams at oblique angles of incidence are presented. First, a lumped-mass model applying the Voellmy-Perla equation is used to calculate the path of the centre-of-mass along the side of a retaining dam. Secondly, a one-dimensional continuum model, applying depth-integrated equations of balance of mass and linear momentum, is expanded to take into account that real avalanche flows are three-dimensional. The centre-line of the avalanche path is determined by the flowing material as it progresses down the channelized avalanche path. The nonlinear constitutive equations comprise viscosity, visco-elasticity and plasticity. Both models are calibrated by simulations of a registered avalanche following a strongly curved channel. The path and the run-up height of the avalanche on the natural deflecting dam with oblique angle of incidence as calculated by the two models, are compared with the observations made. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Cambridge University Press | en_US |
dc.subject | Dam | en_US |
dc.subject | Case Record | en_US |
dc.subject | Mathematical Model | en_US |
dc.subject | Numerical Method | en_US |
dc.subject | Simulation | en_US |
dc.subject | Avalanche-RnD | en_US |
dc.subject | Snøskred-FoU | en_US |
dc.title | Simulations of dense snow avalanches on deflecting dams | en_US |
dc.type | Journal article | en_US |
dc.rights.holder | International Glaciological Society | en_US |
dc.source.pagenumber | 265-271 | en_US |
dc.source.volume | 26 | en_US |
dc.source.journal | Annals of Glaciology | en_US |
dc.identifier.doi | | |
dc.identifier.doi | 10.3189/1998AoG26-1-265-271 | |