TY - GEN
T1 - Application of wavelet scaling function expansion to continuous-energy resonance calculation
AU - Yang, Weiyan
AU - Wu, Hongchun
AU - Cao, Liangzhi
PY - 2009
Y1 - 2009
N2 - Wavelet expansion method can simulate functions oscillating violently. It has been successfully applied to simulate the violent variety of the angular flux. Neutron spectrum has fierce oscillation within the resonance energy range. This paper introduces a method to discretize the energy variable by coupling the multi-group method and wavelets expansion method, in which Daubechies' wavelet scaling functions are used to expand the energy-dependent angular flux within the resonance energy range while traditional multi-group method is used within fast and thermal neutron ranges. Preliminary calculation results indicate that this method can obtain precise k-inf, as well as determine the fine-structure energy distribution of the angular flux, which is significant to the resonance self-shielding calculation.
AB - Wavelet expansion method can simulate functions oscillating violently. It has been successfully applied to simulate the violent variety of the angular flux. Neutron spectrum has fierce oscillation within the resonance energy range. This paper introduces a method to discretize the energy variable by coupling the multi-group method and wavelets expansion method, in which Daubechies' wavelet scaling functions are used to expand the energy-dependent angular flux within the resonance energy range while traditional multi-group method is used within fast and thermal neutron ranges. Preliminary calculation results indicate that this method can obtain precise k-inf, as well as determine the fine-structure energy distribution of the angular flux, which is significant to the resonance self-shielding calculation.
UR - https://www.scopus.com/pages/publications/77953084638
U2 - 10.1115/ICONE17-75829
DO - 10.1115/ICONE17-75829
M3 - 会议稿件
AN - SCOPUS:77953084638
SN - 9780791843543
T3 - International Conference on Nuclear Engineering, Proceedings, ICONE
SP - 661
EP - 666
BT - Proceedings of the 17th International Conference on Nuclear Engineering 2009, ICONE17
T2 - 17th International Conference on Nuclear Engineering, ICONE17
Y2 - 12 July 2009 through 16 July 2009
ER -