1988•Nuclear Science and EngineeringRequires access

A Vectorized Source Algorithm for the Light Water Reactor Coarse-Mesh Nodal Code SIMULATE-E

C.A. Wemple, Ilhan Dilber, Thomas Downar

Abstract

A vectorized source algorithm was developed for the Electric Power Research Institute light water reactor core nodal code SIMULA TE-E. The existing line successive displacement scheme was replaced by configuring the source for all nodes in a given plane as a single vector that could be computed simultaneously. Power distributions and eigenvalues for all test problems agreed exactly with the original scalar code. A factor of 2 to 7 reduction in execution time was achieved for typical pressurized water reactor problems on the CYBER 205.

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Key concepts: Computer science, Algorithm, Pressurized water reactor, Source code, Eigenvalues and eigenvectors, Light-water reactor, Code (set theory), Nuclear engineering