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Consistent Lattice Boltzmann Method

S. Ansumali·I. V. Karlin
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Abstract

The problem of energy conservation in the lattice Boltzmann method is solved. A novel model with energy conservation is derived from Boltzmann's kinetic theory. It is demonstrated that the full thermo-hydrodynamics pertinent to the Boltzmann equation is recovered in the domain where variations around the reference temperature are small. Simulation of a Poiseuille micro-flow is performed in a quantitative agreement with exact results for low and moderate Knudsen numbers. The new model extends in a natural way the standard lattice Boltzmann method to a thermodynamically consistent simulation tool for nearly-incompressible flows.

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BibTeXRIS

S. Ansumali, I. V. Karlin. 2005-07-13. Consistent Lattice Boltzmann Method. https://doi.org/10.1103/physrevlett.95.260605

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