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Artículo
Dilatancy in dry granular flows with a compressible μ(I) rheology
(Elsevier, 2021)
Dilatancy plays a key role in mixtures of grains and fluid but is poorly investigated in dry granular flows. These flows may however dilate by more than 10% in granular column collapses. We investigate here dilatancy effects ...
Artículo
A two-layer shallow flow model with two axes of integration, well-balanced discretization and application to submarine avalanches
(Elsevier, 2020-04-01)
We propose a two-layer model with two different axes of integration and a well-balanced finite volume method. The purpose is to study submarine avalanches and generated tsunamis by a depth-averaged model with different ...
Artículo
A semi-implicit approach for sediment transport models with gravitational effects
(Elsevier, 2022)
In this work efficient semi-implicit methods for sediment bedload transport models with gravitational effects under subcritical regimes is proposed. Several families of models with gravitational effects are presented and ...
Artículo
Multilayer models for shallow two-phase debris flows with dilatancy effects
(Elsevier, 2020)
We present here a multilayer model for shallow grain-fluid mixtures with dilatancy effects. It can be seen as a generalization of the depth-averaged model presented in Bouchut et al. (2016) [6], that includes dilatancy ...
Artículo
A bed pressure correction of the friction term for depth-averaged granular flow models
(Elsevier, 2022)
Depth-averaged models, such as the Savage-Hutter model with Coulomb or Pouliquen fric tion laws, do not in some cases preserve the physical threshold of motion. In particular, the simulated granular mass can start to flow ...