title: Theory and applications of an alternative lattice Boltzmann grid refinement algorithm.
abstract: This contribution proposes an alternative lattice Boltzmann grid refinement algorithm that overcomes the drawbacks that plague existing approaches. We demonstrate that this algorithm is accurate and applicable for all values of the relaxation time. We also show that this algorithm can significantly speed up the flow settlement process. By using a hierarchy of grid levels, the stationary regime can be approached up to a thousand times faster than with a single grid resolution.
authors.affiliation: CUI-Computer Science Department, University of Geneva, CH-1211 Geneva, Switzerland.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Dupuis
authors.forename: Bastien
authors.initials: B
authors.lastname: Chopard