Numerical modeling of non-Newtonian viscoplastic flows: Part II. Viscoplastic fluids and general tridimensional topographies
Résumé
A new reduced model for the shallow tridimensional viscoplastic fluid flowing on a general topography is presented in this paper. A second order and implicit time-dependent numerical algorithm is proposed to solve this problem, providing an auto-adaptive mesh feature for caching accurately the evolution of front position and predict accurately the long-time behavior and the arrested state of the model. This approach was tested on two flows experiments and compared to experimental measurements. The first study shows the efficiency of this approach when the shallow flow conditions are fully satisfied while the second one points out the limitations of the reduced model when these conditions are not satisfied.
Origine : Fichiers produits par l'(les) auteur(s)
Loading...