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DPG

Dresden 2009 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 20: Poster Session I

MM 20.12: Poster

Tuesday, March 24, 2009, 14:45–16:30, P4

Computational Study of Effective Viscosity using a coupled phase-field and Lattice Boltzmann model — •Ali Aksi, Michael Selzer, and Britta Nestler — Institute of Computational Engineering, Karlsruhe, Germany

We use a coupled phase-field and Lattice Boltzmann model to measure the effective viscosity of a fluid containing a distribution of particles. The particles are defined as regions with energy bearing boundaries that may differ in their physical states. A Lattice-Boltzmann method is used to describe the motion of the particles in a flow field. We present 2D and 3D simulation results for different types of domains with different amounts of particles, distributions and volume fractions. We also show simulation results using a compressible and incompressible Lattice Boltzmann model in comparison.

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