A 2-GRID ACCELERATION SCHEME FOR THE MULTIGROUP S-N EQUATIONS WITH NEUTRON UPSCATTERING

被引:35
|
作者
ADAMS, BT [1 ]
MOREL, JE [1 ]
机构
[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545
关键词
D O I
10.13182/NSE115-253
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
A two-grid acceleration scheme for the multigroup S-n equations with neutron upscattering is developed. Although it has been tested only in one-dimensional slab geometry with linear discontinuous spatial differencing, previous experience suggests that it should be applicable in any geometry with any spatial differencing scheme for which an unconditionally efficient diffusion-synthetic acceleration scheme exists. The method is derived, theoretically analyzed, and computationally tested. The results indicate that the scheme is unconditionally effective in terms of error reduction per iteration and highly efficient in terms of computational cost.
引用
收藏
页码:253 / 264
页数:12
相关论文
共 50 条
  • [41] Bi2Sr2CaCu2O8单晶S-N转变的E-J特性
    臧超飞
    沈庆飞
    李春光
    张国华
    罗胜
    齐志
    尹道乐
    丁克俭
    昌俊
    何豫生
    低温物理学报, 2001, (04) : 280 - 284
  • [42] Computational investigation of the formation and isomerization pathways of CH3SNO2 and the S-N bond dissociation energies of CH3S(O)n NO2 (n=0, 1, 2) species
    Salta, Zoi
    Kosmas, Agnie M.
    STRUCTURAL CHEMISTRY, 2016, 27 (04) : 1149 - 1156
  • [43] Bond orders and electron delocalization indices for S-N, S-C and S-S bonds in 1,2,3-dithiazole systems
    Bartashevich, Ekaterina, V
    Mukhitdinova, Svetlana E.
    Tsirelson, Vladimir G.
    MENDELEEV COMMUNICATIONS, 2021, 31 (05) : 680 - 683
  • [44] Empowering non-covalent hydrogen, halogen, and [S-N]2 bonds in synergistic molecular assemblies on Au(111)
    Barragan, Ana
    Lois, Sara
    Sarasola, Ane
    Vitali, Lucia
    NANOSCALE, 2022, 14 (48) : 17895 - 17899
  • [45] INFRARED ABSORPTION SPECTRA OF ORGANIC SULFUR COMPOUNDS .2. STUDIES ON S-N STRETCHING BANDS OF METHANESULFONAMIDE DERIVATIVES
    TANAKA, Y
    TANAKA, Y
    CHEMICAL & PHARMACEUTICAL BULLETIN, 1965, 13 (07) : 858 - +
  • [46] An efficient solution method for incompressible N-S Equations using non-orthogonal collocated grid
    Roychowdhury, DG
    Das, SK
    Sundararajan, T
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1999, 45 (06) : 741 - 763
  • [47] Computation of the flow past multi-element airfoils using unstructured grid and N-S equations
    Liu, X.Q.
    Wu, Y.Z.
    Kongqi Donglixue Xuebao/Acta Aerodynamica Sinica, 2001, 19 (02):
  • [48] Numerical analysis of multi-element airfoil using unstructured grid and Euler and N-S equations
    Dept. of Aircraft Eng., Northwestern Polytechnical Univ., Xi'an 710072, China
    Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University, 2001, 19 (03): : 336 - 340
  • [49] ISOMERIZATION OF TOLUYLATED S-N(2)-2'-DESOXY-D-RIBOFURANOSIDES AND N(2)-2'-DESOXY-D-RIBOFURANOSIDES OF 3-MERCAPTOPYRIDAZINES-THIOPYRIDAZONES-(3) .54.
    HELLER, D
    WAGNER, G
    PHARMAZIE, 1975, 30 (04): : 207 - 210
  • [50] A Lock and Key Share (2, m, n) Random Grid Visual Secret Sharing Scheme with XOR and OR Decryptions
    Ahammed, T. Farzin
    Mundekkattil, Sulaiman
    COMPUTATIONAL INTELLIGENCE, CYBER SECURITY AND COMPUTATIONAL MODELS, ICC3 2015, 2016, 412 : 393 - 402