Radiative transfer within strongly non homogeneous porous media: Application to a slab of packed particles

摘要: The original radiation transfer model is dedicated to strongly non homogeneous porous media with a transparent phase and an opaque one, characterised by diffuse reflection law at local scale. It only based on radiative statistical functions of extinction scattering general function, which completely characterise the properties medium. generalisation for these media, under integral formulation, Generalised Radiative Transfer Equation (GRTE). A rigorous expression emission source term from reciprocity principle key point. developed applied in case slab packed bed spherical particles, using Monte Carlo method. has been validated comparison results bibliography academic purely absorbing optically thick slabs. finally realistic cases scattering, emitting media. also accurately accounts configurations resulting non-monotonous temperature profiles.