2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84257The role of geometrical micro-barriers on the conversion efficiency of reactive flows in narrow three-dimensional channels of millimetric size is investigated. Using a Lattice-Boltzmann-Lax-Wendroff code, we show that micro-barriers have an appreciable effect on the effective reaction efficiency of the device. If extrapolated to macroscopic scales, these effects can result in a sizeable increase of the overall reaction efficiency.5 pages, 7 figuresFluid DynamicsStatistical MechanicsComputational Physicstext