Method for calculating radiative energy transfer in the “back and forth” approximation

Abstract. This paper presents a method for calculating the radiative energy transfer in back and forth approximation case of cylindrically symmetric currents. The key element is scheme heat medium with opacity that strongly varies space time. discusses possibility improving accuracy solving difference equations’ system by making absorption coefficients more accurate. numerical technique proposed multi-parameter computing experiments makes it possible to obtain radiation density as quadrature plasma emissivity. In two-temperature model gas dynamics magnetohydrodynamics, this determines contribution into balance electronic component. Numerical comparison some diffusion methods was implemented via test examples simulating spatial inhomogeneity field. It shown calculations performed according methodology considered paper, give qualitatively correct match analytical solution problem, contrast diffuse approximation. obvious advantage integrality inherent its structure.