Lattice Gas Hydrodynamics

ISBN-13: 9780521419444 / Angielski / Twarda / 2001 / 310 str.

Jean-Pierre Rivet; J. -P Rivet; J. P. Boon

Opis

Lattice gas hydrodynamics describes the approach to fluid dynamics using a micro-world constructed as an automaton universe, where the microscopic dynamics is based not on a description of interacting particles, but on the laws of symmetry and invariance of macroscopic physics. We imagine point-like particles residing on a regular lattice, where they move from node to node and undergo collisions when their trajectories meet. If the collisions occur according to some simple logical rules, and if the lattice has the proper symmetry, then the automaton shows global behavior very similar to that of real fluids. This book carries two important messages. First, it shows how an automaton universe with simple microscopic dynamics--the lattice gas--can exhibit macroscopic behavior in accordance with the phenomenological laws of classical physics. Second, it demonstrates that lattice gases have spontaneous microscopic fluctuations that capture the essentials of actual fluctuations in real fluids.

Recenzje

'… it may serve as a useful review of the attempts in the last fifteen years, 1986 to present, to apply cellular automata to simulate fluid dynamics.' Zentralblatt MATH

Spis treści

1. Introduction; 2. Basic ideas; 3. Microdynamics: general formalism; 4. Microdynamics: various examples; 5. Equilibrium statistical mechanics; 6. Macrodynamics: Chapman–Enskog method; 7. Linearized hydrodynamics; 8. Hydrodynamic fluctuations; 9. Macrodynamics: projectors approach; 10. Hydrodynamic regimes; 11. Lattice gas simulations; 12. Guide for further reading; Appendix. Mathematical details.