Articles techniques et présentations

Simulation of the flow behaviour of non-Newtonian fluids with high viscosities leads to special material models with specific material parameters. In this presentation, a material model consisting of 4 material parameters describing the flow itself and also the wall slip is presented. The investigations of the flow behaviour are based on COMSOL Multiphysics® using the Modules CFD, Structural Mechanics and the Fluid-Structure-Interaction Interface and are set up as a multiphysics simulation. It is shown, how the flow of a technical ceramic in a complex extrusion line with forming dies is modelled with COMSOL Multiphysics®. In a two-way coupled FSI it is shown how the non-Newtonian material interacts with the device and is influenced by special geometric parts. Furthermore the mechanical stress on a strainer is presented.