Computer implemented method for modelizing a nuclear reactor core and a corresponding computer program product

摘要

A computer implemented method for modelizing a nuclear reactor core, includes the steps of: partitioning the core in cubes to constitute nodes of a grid for computer implemented calculation, calculating neutron flux by using an iterative solving procedure of at least one eigensystem, the components of an iterant of the eigensystem corresponding either to a neutron flux, to a neutron outcurrent or to a neutron incurrent, for a respective cube to be calculated.;The eigensystem iterative solving procedure includes a substep of conditioning the eigensystem into a spare eigensystem wherein the components of an iterant of the spare eigensystem correspond only either to neutron incurrents coming into the cubes or to neutron outcurrents coming from the cubes.