Speaker
Julien Bruchon
(Ecole des Mines de Saint-Etienne)
Description
We propose a numerical framework to simulate the evolution of granular packings driven by surface and volume diffusion. Particle interfaces are captured using an Eulerian level-set approach, enabling a natural treatment of complex topological changes. Coupled with adaptive meshing and parallel computing, the method allows efficient large-scale simulations.
Grains are modeled as elastic, and the resulting mechanical problem is solved using a stabilized finite element formulation to compute volume fluxes and interface motion.
The framework is further extended to the sintering of heterogeneous packings composed of multiple grain populations (undoped and doped).