| Autor: | M. Lampis, D. Ya. Petrina |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
General Mathematics
Lattice Boltzmann methods Hard spheres Nonlinear Sciences::Cellular Automata and Lattice Gases Boltzmann equation Bhatnagar–Gross–Krook operator symbols.namesake Classical mechanics Phase space Boltzmann constant symbols Direct simulation Monte Carlo Statistical physics Boltzmann's entropy formula Mathematics |
| Zdroj: | Ukrainian Mathematical Journal. 54:94-111 |
| ISSN: | 0041-5995 |
| Popis: | We introduce the stochastic dynamics in the phase space that corresponds to the Boltzmann equation and hierarchy and is the Boltzmann–Grad limit of the Hamiltonian dynamics of systems of hard spheres. By the method of averaging over the space of positions, we derive from it the stochastic dynamics in the momentum space that corresponds to the space-homogeneous Boltzmann equation and hierarchy. Analogous dynamics in the mean-field approximation was postulated by Kac for the explanation of the phenomenon of propagation of chaos and derivation of the Boltzmann equation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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