期刊
JOURNAL OF STATISTICAL PHYSICS
卷 107, 期 1-2, 页码 521-537出版社
SPRINGER
DOI: 10.1023/A:1014595628808
关键词
Lees-Edwards; simple shear; lattice Boltzmann; boundary conditions; bounce back; two-component fluid flow
Lees-Edwards boundary conditions (LEbc) for Molecular Dynamics simulations((1)) 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 isothermal lattice Boltzmann simulations and how LEbc can be used to overcome the problem of a maximum shear rate that is limited to less then 1/L-y (with L-y the transverse system size) in traditional lattice Boltzmann implementations of shear flow. The only previous Lattice Boltzmann implementation of LEbc((2)) requires a specific fourth order equilibrium distribution. In this paper we show how LEbc can be implemented with the usual quadratic equilibrium distributions.
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