Search

Your search keyword '"Prestininzi, A."' showing total 2 results
Start Over Author "Prestininzi, A." Publisher american physical society
2 results on '"Prestininzi, A."'

1. Lattice Boltzmann approach for complex nonequilibrium flows.

Author

Montessori, A., Prestininzi, P., La Rocca, M., and Succi, S.

Subjects
*LATTICE Boltzmann methods, *HYDRODYNAMICS, *COMPUTATIONAL fluid dynamics, *NONEQUILIBRIUM flow, *KNUDSEN flow, *FLUID flow
Abstract

We present a lattice Boltzmann realization of Grad's extended hydrodynamic approach to nonequilibrium flows. This is achieved by using higher-order isotropic lattices coupled with a higher-order regularization procedure. The method is assessed for (low across parallel plates and three-dimensional flows in porous media, showing excellent agreement of the mass flow with analytical and numerical solutions of the Boltzmann equation across the full range of Knudsen numbers, from the hydrodynamic regime to ballistic motion. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

2. Regularized lattice Bhatnagar-Gross-Krook model for two- and three-dimensional cavity flow simulations.

Author

Montessori, A., Falcucci, G., Prestininzi, P., La Rocca, M., and Succi, S.

Subjects
*LATTICE Boltzmann methods, *HYDRODYNAMICS, *REYNOLDS number, *KNUDSEN flow, *HERMITE polynomials, *BOUNDARY value problems
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. [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results