Small angle model of radiative transfer in a binary Markovian mixture

摘要

By use of the small angle approximation a set of differential equations describing the space and angular Fourier-specters of the ensemble average intensity in a binary Markovian mixture is considered. Within the framework of this approach analytical expressions for the following values where obtained: the total transferred energy and the effective radius of a narrow beam; the angular dispersion and the intensity of an infinite wide beam; the optical transfer function of the binary Markovian mixture. Results of the analysis show that radiation transfer through binary Markovian mixture differs considerably from transfer through a uniform mixture, and are strongly dependent on the size of the medium inhomogeneities, and the difference of the optical parameters of the mixture components.