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

Park, Chang-Je (Korea Advanced Institute of Science and Technology)
Cho, Nam-Zin (Korea Advanced Institute of Science and Technology)
Publication Information
Nuclear Engineering and Technology / v.34, no.4, 2002 , pp. 314-322 More about this Journal
Abstract
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.
Keywords
neutron; transport; calculation; acceleration; extrapolation; fourier analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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