Modeling of spillage and debris floods as Newtonian and viscoplastic Bingham flows with free surface with mixed stabilized finite elements

This work deals with the numerical modeling of spillage and debris floods as Newtonian viscoplastic Bingham flows free surface using mixed stabilized finite elements. The main objective is determination location flow. A velocity/pressure element formulation used Orthogonal Subgrid Scale stabilization (OSS) Split (Split-OSS) techniques enable equal order interpolation for velocity pressure. double viscosity regularized model introduced an alternative to Papanastasiou model. analytical solution a Poiseuille flow has been obtained convergence test performed compare both models. simplified Eulerian method solved on fixed mesh presented track movement surface. done by transporting level set method. solutions are compared analytical, experimental results benchmarks from literature. They also field data in real case study, due failure mining reservoir, which 3D 2D