Title: Simulation of Magnetic Suspensions for Hgms Using Cfd, Fem and Dem Modeling Simulation of Magnetic Particle Movement Using Fem and Cfd Simulation of Magnetic Suspensions for Hgms Using Cfd, Fem and Dem Modeling 2

7 Properties of magnetic suspensions depend on the fluid, the particles and the magnetic background field. 8 The simulation is aimed at understanding the influence of magnetic properties in High Gradient Magnetic 9 Separation processes. In HGMS magnetic particles are collected on magnetic wires for separation. External 10 magnetic forces are calculated or simulated using the Finite Element Method and embedded first in a 11 Computational Fluid Dynamics simulation. In the simulation, elliptic and rectangular wires aligned in field 12 direction reach higher separation efficiencies than cylindrical wires. Magnetic forces from FEM with 13 implemented dipole forces in a Discrete Element Method code show magnetically induced agglomeration 14 and yield an acceptable agreement with experiments. Particle deposition on wires is investigated under the 15 influence of different parameters. The porosity of the deposit is dependent on the magnetization of the 16 wire and particles. A centrifugal force of 60 g has an important influence. 17 Highlights 18  Finite Element Modeling simulation read in Computational Fluid Dynamics for magnetic particle 19 tracks 20  Discrete Element Modeling of magnetic particle chains 21