000K utf8
0100 607472855
1100 2009$c2009-01-30
1500 eng
3000 Babovsky, Hans
4000 A numerical model for the Boltzmann equation with applications to micro flows [Babovsky, Hans]
4209 Given an integer lattice \mathcal{L} \subset \mathbb{R}d, we define G as the orthogonal group leaving \mathcal{L} invariant. Starting from a basic kinetic model on G we construct a collision operator on \mathcal{L} which keeps all the essential features of the classical Boltzmann collision operator. For a particular 3D lattice we demonstrate the suitability of this discrete model for the numerical simulation of rarefied flows. For several examples, e.g. in the context of micro flows, we find a good qualitative and quantitative agreement of our simulation results with test data.
4961 http://uri.gbv.de/document/gvk:ppn:607472855
5051 510
5550 Boltzmann equation
5550 discrete kinetic model
5550 numerical simulation