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arXiv · 1509.01052

Coupled DEM-LBM method for the free-surface simulation of heterogeneous suspensions

A. Leonardi·F. K. Wittel·M. Mendoza·H. J. Herrmann
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Abstract

The complexity of the interactions between the constituent granular and liquid phases of a suspension requires an adequate treatment of the constituents themselves. A promising way for numerical simulations of such systems is given by hybrid computational frameworks. This is naturally done, when the Lagrangian description of particle dynamics of the granular phase finds a correspondence in the fluid description. In this work we employ extensions of the Lattice-Boltzmann Method for non-Newtonian rheology, free surfaces, and moving boundaries. The models allows for a full coupling of the phases, but in a simplified way. An experimental validation is given by an example of gravity driven flow of a particle suspension.

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A. Leonardi, F. K. Wittel, M. Mendoza, H. J. Herrmann. 2015-09-03. Coupled DEM-LBM method for the free-surface simulation of heterogeneous suspensions. https://doi.org/10.1007/s40571-014-0001-z

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