A linearized coarse mesh finite difference preconditioner for the within-group Krylov subspace iteration based on two-dimensional method of characteristics
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107889
Abstract: Abstract In this work, a preconditioner is developed based on the linear coarse mesh finite difference (CMFD) formulation for the flexible generalized minimal residual (FGMRES) algorithm, and applied to accelerate within-group Krylov iterations based on… read more here.
Keywords: within group; mesh finite; method; coarse mesh ... See more keywords
One-node and two-node hybrid coarse-mesh finite difference algorithm for efficient pin-by-pin core calculation
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Engineering and Technology"
DOI: 10.1016/j.net.2017.12.003
Abstract: Abstract This article presents a new global–local hybrid coarse-mesh finite difference (HCMFD) method for efficient parallel calculation of pin-by-pin heterogeneous core analysis. In the HCMFD method, the one-node coarse-mesh finite difference (CMFD) scheme is combined… read more here.
Keywords: two node; coarse mesh; algorithm; pin ... See more keywords
A Linear Prolongating Coarse Mesh Finite Difference Acceleration of Discrete Ordinate Neutron Transport Calculation Based on Discontinuous Galerkin Finite Element Method
Sign Up to like & getrecommendations! Published in 2020 at "Nuclear Science and Engineering"
DOI: 10.1080/00295639.2020.1752045
Abstract: Abstract The recently developed linear prolongation Coarse Mesh Finite Difference (lpCMFD) acceleration scheme, which employs a linear additive approach to update the scalar flux, has been shown to be more stable and effective than the… read more here.
Keywords: transport calculation; calculation; finite difference; coarse mesh ... See more keywords