ANALYTICAL AND NUMERICAL-METHOD FOR SOLUT ION OF INTEGRODIFFERENTIAL EQUATION OF RADIATIVE-TRANSFER IN ENCLOSURE OF ARBITRARY GEOMETRY

Hybrid analytical/numerical method is proposed for solution of integro differential equation of radiative transfer in multidimensional media with arbitrary optical and geometric boundary conditions. Resolution a lgorithm is a combination of discrete-ordinates method and ray-tracing method-radiation intensity is calculated along the ray trajectory wit h allowance for the optical properties of media and boundary surface u sing the piece-analytical solution of mentioned equation. The proposed method extends the range of resolution problems with increasing the a ccuracy and speed of radiative transfer calculations and decreasing th e computer resources.