Kinematic condition for multicomponent lattice Boltzmann simulation

Abstract

We present a simple, transferable, efficient, and effective algorithmic enhancement designed to improve the accuracy of all multicomponent lattice Boltzmann methods when applied to the simulation in the continuum approximation of fluid mechanics. By applying a collision parameter (kinematic viscosity) perturbation to reduce velocity gradients in the interfacial region, a kinematic condition is effectively enforced. Matters relating to a variation in the collision parameter are briefly discussed.