Calculating the matrix of effective boundary conditions on the surface of a multizone cylindrical block

Proposed is the method for calculating the matrix of effective boundary conditions, which is a characteristic of a block in the heterogeneous reactor theory based on the few-group (2-6 groups) diffusion (or asymptotic) approximation. The method is based on the solution of multigroup equation systems in reactor cells with different sizes or boundary conditions. An addition to the TRIFON program permitting to calculate the matrix of effective boundary conditions is composed using the above algorithm