SOLTRAN: Solving Multi-Dimensional Simplified P2 Transport and Diffusion Problems of Hexagonal Geometry in Fast Reactors.
Korea Atomic Energy Research Institute, Daejon, Republic of Korea through the OECD Nuclear Energy Agency Data Bank, Issy-Les Moulineaux, France.
FORTRAN 90, PC Windows (C00763PCX8600).
The nodal SP2 equations are formulated with minimum modifications of the nodal diffusion equation by introducing the SP2 constant and flux. The response matrix equations that are the final forms of the nodal equations involve the spatial flux moments, the surface-averaged flux, the surface-averaged partial current, and the surface averaged sources, where the last terms are used in the SP2 option only. These equations are solved using a fission source iteration with red-black and coarse-mesh rebalancing acceleration.
Because the SP2 and diffusion equations can be considered as an asymptotic approximation of a transport equation in optically thick regions, relatively larger errors occur in the regions with long diffusion lengths. But the magnitudes of the errors of the SP2 nodal are smaller than those of the diffusion nodal.
Run time was on the order of a few seconds.
X86 or X86_64 processor.
Windows operating system with Compaq Fortran compiler 6.1 or higher is required to compile source.
Yeong-il Kim, Taek Kyum Kim, Young-Jin Kim: “User's Manual for SOLTRAN (Version 1.0) - A Code for Solving Multi-Dimensional Simplified P2 Transport Theory Problems in a Hexagonal Geometry” (January 2000).
The package is transmitted on a CD in a Windows format file which includes documentation, source files, precompiled executables and a sample problem.
KEYWORDS: DIFFUSION THEORY, MULTIGROUP