Lattice gas automata (LGA) or lattice gas cellular automata (LGCA) methods are a series of cellular automata methods used to simulate fluid flows. It was the precursor to the lattice Boltzmann methods. From the LGCA, it is possible to derive the macroscopic Navier-Stokes equations. Interest in the LGCA methods levelled off in the early 1990s, as the interest in the lattice Boltzmann started to rise.
As a cellular automata, these models comprise o...
more
Lattice gas automata (LGA) or lattice gas cellular automata (LGCA) methods are a series of cellular automata methods used to simulate fluid flows. It was the precursor to the lattice Boltzmann methods. From the LGCA, it is possible to derive the macroscopic Navier-Stokes equations. Interest in the LGCA methods levelled off in the early 1990s, as the interest in the lattice Boltzmann started to rise.
As a cellular automata, these models comprise of a lattice, where the sites on the lattice can take a certain number of different states. In lattice gas, the various states are particles with certain velocities. Evolution of the simulation is done in discrete time steps. After each time step, the state at a given site can be determined by the state of the site itself and neighboring sites, before the time step.
The state at each site is purely boolean. At a given site, there either is or there is not a particle which is moving up.
At each time step, two processes are carried out,...
less
