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DOE OSTI · 2475273

Coarse Mesh Finite Difference Acceleration for Pebble Tracking Transport in Griffin

Wang, Yaqi·Choi, Namjae·Hanophy, Joshua Thomas
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Abstract

We implemented a coarse mesh finite difference (CMFD) for accelerating transport calculations with PTT (pebble tracking transport) in the Griffin code. More specifically, extensions for transport update with the consideration of scattering operator and CMFD projection were implemented for PTT. The implementation was verified with a simplified PBR (pebble bed reactor) benchmark problem and significant performance improvements in CPU time was observed.

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97 MATHEMATICS AND COMPUTINGCoarse mesh finite differenceGriffinNeutron transportPebble bed reactorPebble tracking transport

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Wang, Yaqi, Choi, Namjae, Hanophy, Joshua Thomas. 2024-04-24. Coarse Mesh Finite Difference Acceleration for Pebble Tracking Transport in Griffin. https://doi.org/10.13182/physor24-43694

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