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Lees-Edwards boundary conditions for lattice Boltzmann

Alexander J. Wagner·Ignacio Pagonabarraga
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Abstract

Lees Edwards boundary conditions (LEbc) for Molecular Dynamics simulations are an extension of the well known periodic boundary conditions and allow the simulation of bulk systems in a simple shear flow. We show how the idea of LEbc can be implemented in lattice Boltzmann simulations and how LEbc can be used to overcome the problem of a maxinum shear rate that is limited to less than 1/Ly (with Ly the transverse system size) in traditional lattice Boltzmann implementations of shear flow.

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Alexander J. Wagner, Ignacio Pagonabarraga. 2001-03-13. Lees-Edwards boundary conditions for lattice Boltzmann. https://arxiv.org/abs/cond-mat/0103218

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