We investigate the accuracy and performance of the regularized version of the single-relaxation-time lattice Boltzmann equation for the case of two- and three-dimensional lid-driven cavities. The regularized version is shown to provide a significant gain in stability over the standard single-relaxation time, at a moderate computational overhead. methods for lid-driven cavity flows. RLBGK is shown to provide a viable alternative to standard lattice BGK schemes, with signi¯cant enhancement of numerical stability at a very moderate computational extra-cost.
Montessori, A., Falcucci, G., Prestininzi, P., LA ROCCA, M., Succi, S. (2014). Regularized lattice Bhatnagar-Gross-Krook model for two- and three-dimensional cavity flow simulations. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 89(5), 8 [10.1103/PhysRevE.89.053317].
Regularized lattice Bhatnagar-Gross-Krook model for two- and three-dimensional cavity flow simulations
MONTESSORI, ANDREA;FALCUCCI, GIACOMO;PRESTININZI, PIETRO;LA ROCCA, MICHELE;
2014-01-01
Abstract
We investigate the accuracy and performance of the regularized version of the single-relaxation-time lattice Boltzmann equation for the case of two- and three-dimensional lid-driven cavities. The regularized version is shown to provide a significant gain in stability over the standard single-relaxation time, at a moderate computational overhead. methods for lid-driven cavity flows. RLBGK is shown to provide a viable alternative to standard lattice BGK schemes, with signi¯cant enhancement of numerical stability at a very moderate computational extra-cost.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
