23rd International Meshing Roundtable
Argonne National Laboratory, Argonne, IL, U.S.A.
CD-Adapco, Austin, TX, U.S.A.
Recent advances in supercomputers and parallel solver techniques have enabled users to run large simulations
problems using millions of processors. Techniques for multiphysics nuclear reactor core simulations are under
active development in several countries. Most of these techniques require large unstructured meshes that can
be hard to generate in a standalone desktop computers because of high memory requirements, limited processing
power, and other complexities. We have previously reported on a hierarchical lattice-based approach for
generating reactor core meshes. Here, we describe efforts to exploit coarse-grained parallelism during
reactor assembly and reactor core mesh generation processes. We highlight several reactor core examples
including a very high temperature reactor, a full-core model of the Korean MONJU reactor, a º pressurized
water reactor core, the fast reactor Experimental Breeder Reactor-II core with a XX09 assembly, and an
advanced breeder test reactor core. The times required to generate large mesh models, along with speedups
obtained from running these problems in parallel, are reported. A graphical user interface to the tools
described here has also been developed.
Download Full Paper (PDF Format)
Contact author(s) or publisher for availability and copyright information on above referenced article