A New Acceleration Method of Additive Angular Dependent Rebalance with Extrapolation for Discrete Ordinates Transport Equation

A new extrapolation method is developed and applied to the additive angular dependent rebalance (AADR) acceleration for discrete ordinates neutron transport calculations. With this extrapolation, the convergence of AADR solution for distinct discretizations between the high- order and low-order equations is remarkably improved and thus the “inconsistent discretization problem” is resolved. Fourier analysis is also performed to find the optimal extrapolation and weighting parameters, which give the smallest spectral radius. The numerical tests demonstrate that the AADR with extrapolation works well as predicted by the Fourier analysis.
Publisher
한국원자력학회
Issue Date
2002-08
Language
ENG
Citation

NUCLEAR ENGINEERING AND TECHNOLOGY, v.34, no.4, pp.314 - 322

ISSN
1738-5733
URI
http://hdl.handle.net/10203/7167
Appears in Collection
NE-Journal Papers(저널논문)
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