Coarse-Mesh Finite-Difference Acceleration in the NEWT Generalized-Geometry Lattice Physics Package

摘要

The CMFD formulation enables dynamic homogenization of the cells in a heterogeneous whole-core transport calculation and provides an efficient means to accelerate convergence of heterogeneous calculations. Through the application of CMFD acceleration to various test problems, (i.e., the heterogeneous transport solution) experience has shown that the eigenvalue is reproduced exactly while the number of ESC transport sweeps is reduced significantly.