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Published in:
2006 | OriginalPaper | Chapter
Microstructural Effects in a Fully-Resolved Simulation of 1,024 Sedimenting Spheres
Authors : Z. Z. Zhang, L. Botto, A. Prosperetti
Published in: IUTAM Symposium on Computational Approaches to Multiphase Flow
Publisher: Springer Netherlands
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The results of a fully-resolved simulation of 1,024 particles settling under gravity in a periodic domain are described and analyzed. The particle volume fraction is about 13% and the single-particle terminal Reynolds number is about 10. Collisions are modelled as completely elastic. The results show that the formation of nearly-horizontal particle pairs is an important phenomenon which affects the mean settling velocity as well as the velocity fluctuations.