2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80880A modified lattice Boltzmann model with a stochastic relaxation mechanism mimicking "virtual'' collisions between free-streaming particles and solid walls is introduced. This modified scheme permits to compute plane channel flows in satisfactory agreement with analytical results over a broad spectrum of Knudsen numbers, ranging from the hydrodynamic regime, all the way to quasi-free flow regimes up to Kn 30.4 pages, 4 figuresChaotic DynamicsCellular Automata and Lattice GasesFluid Dynamicstext