Publication Type
Journal
Journal Name
Nuclear Science and Engineering
Publication Date
Page Numbers
283 to 291
Volume
175
Issue
3
Abstract
Fully-consistent, full-core, 3D, deterministic neutron transport simulations
using the orthogonal mesh code Denovo were run on the massively parallel
computing architecture Jaguar XT5. Using energy and spatial parallelization
schemes, Denovo was able to efficiently scale to more than 160k processors.
Cell-homogenized cross sections were used with step-characteristics,
linear-discontinuous finite element, and trilinear-discontinuous finite element
spatial methods. It was determined that using the finite element methods gave
considerably more accurate eigenvalue solutions for large-aspect ratio meshes
than using step-characteristics.
