Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Rauter, Matthias"
Now showing items 1-8 of 8
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Constraints on Entrainment and Deposition Models in Avalanche Simulations from High-Resolution Radar Data
Rauter, Matthias; Köhler, Anselm (Peer reviewed; Journal article, 2019)Depth-integrated simulations of snow avalanches have become a central part of risk analysis and mitigation. However, the common practice of applying different model parameters to mimic different avalanches is unsatisfying. ... -
Coupling rheology and segregation in granular flows
Barker, T.; Rauter, Matthias; Maguire, E. S. F.; Johnson, C. G.; Gray, J. M. N. T. (Peer reviewed; Journal article, 2020)During the last fifteen years there has been a paradigm shift in the continuum modelling of granular materials; most notably with the development of rheological models, such as the μ(I) μ(I) -rheology (where μ μ is the ... -
faSavageHutterFOAM 1.0: depth-integrated simulation of dense snow avalanches on natural terrain with OpenFOAM
Rauter, Matthias; Kofler, Andreas; Huber, Andreas; Fellin, Wolfgang (Peer reviewed; Journal article, 2018)Numerical models for dense snow avalanches have become central to hazard zone mapping and mitigation. Several commercial and free applications, which are used on a regular basis, implement such models. In this study we ... -
Granular porous landslide tsunami modelling – the 2014 Lake Askja flank collapse
Rauter, Matthias; Viroulet, Sylvain; Gylfadóttir, Sigríður Sif; Fellin, Wolfgang; Løvholt, Finn (Peer reviewed; Journal article, 2022)Subaerial landslides and volcano flank collapses can generate tsunamis with devastating consequences. The lack of comprehensive models incorporating both the landslide and the wave mechanics represents a gap in providing ... -
Granular viscosity from plastic yield surfaces: The role of the deformation type in granular flows
Rauter, Matthias; Barker, T.; Fellin, W. (Peer reviewed; Journal article, 2020)Numerical simulations of granular flows with Navier–Stokes type models emerged in the last decade, challenging the well established depth-averaged models. The structure of these equations allows for extension to general ... -
Multiphase Navier–Stokes Equations applied to landslide tsunamis : Numerical simulations of granular flows and their interaction with water bodies
Rauter, Matthias (Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo;2405, Doctoral thesis, 2021) -
Numerical simulation of impulse wave generation by idealized landslides with OpenFOAM
Rauter, Matthias; Hosse, L.; Mulligan, Ryan P.; Take, W. A.; Løvholt, Finn (Peer reviewed; Journal article, 2020)Landslide tsunamis and impulse waves are hazardous events with severe socioeconomic impacts. A long standing problem with simulations of these events is the generation stage, where landslides and water interact. Depth-averaged ... -
The compressible granular collapse in a fluid as a continuum: validity of a Navier-Stokes model with, -rheology
Rauter, Matthias (Peer reviewed; Journal article, 2021)