CE46 - Modèles numériques, simulation, applications

Challenging the numerical simulation of viscoplastic flows: cross-comparison with physical experiments – VPFlows

Submission summary

The VPFlows project develops innovative numerical methods for HPC simulation of yield stress flows, associated to the modelling of geophysical flows like avalanches. It is a deeply interdisciplinary project: the part on numerical simulations (currently the most precise in the field thanks to HPC) goes back-and-forth with the experimental part where such flows are monitored with the best degree of accuracy of the recent literature. Considered designed equations are of both types: either full (i.e. natural) Herschel-Bulkley-like in a fixed domain (2D and 3D) or depth-integrated (2D models à la Saint-Venant, which are more computationally affordable and mandatory for real avalanche configurations). With this interdisciplinary approach, VPFlows consortium (ENS de Lyon, INRAE & LJK) already proved its complementarity and efficiency in publishing cutting-edge results providing a better understanding of the physics and rheology of yield-stress fluids.

Project coordination

Paul Vigneaux (Laboratoire Amiénois de Mathématique Fondamentale et Appliquée)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

LAMFA Laboratoire Amiénois de Mathématique Fondamentale et Appliquée
UMPA/ENSL Unité de mathématiques pures et appliquées de l'ENS de Lyon
LJK Laboratoire Jean Kuntzmann
RECOVER RECOVER RISQUES ECOSYSTEMES VULNERABILITE ENVIRONNEMENT RESILIENCE
ETNA EROSION TORRENTIELLE, NEIGE ET AVALANCHES

Help of the ANR 366,012 euros
Beginning and duration of the scientific project: - 48 Months

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