The Boltzmann Gas Lattice Method (BGLM) models directly the physics of the fluid
particles and achieves the same results as the Navier-Stokes equations, that are a
continuum representation of the fluid dynamics.

The representation of the dynamics of all the particles with the BGLM is practically
very expensive, therefore some simplification is used at the microscopic level.

The particles are described in terms of velocity components in the time-domain, in
elementary cartesian volume units (lattices). Particles move, collide and eventually
fall into another lattice. The full description of this dynamics is accomplished
through the conservation of mass, momentum and energy.

The idea behind the method is to solve indirectly the equations for the continuum
(Navier-Stokes) by mimicking the fluid dynamics at the molecular level.