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Magnetization models for particle-based simulations of magnetorheological fluids

: Lagger, H.G.; Peguiron, J.; Bierwisch, C.; Moseler, M.

Papadrakakis, M.; Onate, E.; Schrefler, B.A.:
COUPLED PROBLEMS 2011. Computational Methods for Coupled Problems in Science and Engineering IV : June 20 - 22, 2011, Island of Kos, Greece
International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS) <4, 2011, Kos Island/Greece>
Conference Paper
Fraunhofer IWM ()

In this study, three-dimensional particle-based simulations are used to model magnetorheological fluids. The numerical model of the MRF is implemented in the framework of the Discrete Element Method (DEM) and takes into account the coupling of the magnetic dipoles, the hydrodynamic drag forces and steric forces between particles. To accurately treat the magnetic interaction between particles, the magnetic field at the particles' position is computed and an appropriate magnetization model is implemented. DEM simulations with different volume fractions of the MRF are carried out and the resulting magnetization curves are put in comparison with experimental data.