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Scalable angular adaptivity for Boltzmann transport
[article]
2019
arXiv
pre-print
This paper describes an angular adaptivity algorithm for Boltzmann transport applications which for the first time shows evidence of O(n) scaling in both runtime and memory usage, where n is the number of adapted angles. This adaptivity uses Haar wavelets, which perform structured h-adaptivity built on top of a hierarchical P_0 FEM discretisation of a 2D angular domain, allowing different anisotropic angular resolution to be applied across space/energy. Fixed angular refinement, along with
arXiv:1901.04929v1
fatcat:rkpzwy4dtvbmddjbls6p5k2sgi