last modified: 09-APR-1990 | catalog | categories | new | search |

NEA-0545 FEM-BABEL.

FEM-BABEL, 3-D MultiGroup Neutron Diffusion by Galerkin Method

top ]
1. NAME OR DESIGNATION OF PROGRAM:  FEM-BABEL.
top ]
2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
FEM-BABEL NEA-0545/01 Tested 01-APR-1980

Machines used:

Package ID Orig. computer Test computer
NEA-0545/01 IBM 3033 IBM 3033
top ]
3. NATURE OF PHYSICAL PROBLEM SOLVED

This program computes the three-dimensional multigroup neutron diffusion equation using the finite element method.
top ]
4. METHOD OF SOLUTION

The equation is solved using a solution algorithm based on a Galerkin-type scheme. Prism and box-shaped finite elements are used. The resulting equation system is solved using the sucessive over-relaxation method and the inner iterations are accelerated by a coarse mesh  rebalancing technique.
top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Any down-scattering of neutrons is allowed but up-scattering and region-dependent fission  spectra are not permitted.
top ]
6. TYPICAL RUNNING TIME

The running time is 95 sec for a homogeneous cubic reactor problem with two energy groups and a 10 x 10 x 10 mesh.
top ]
7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
top ]
8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
top ]
9. STATUS
Package ID Status date Status
NEA-0545/01 01-APR-1980 Tested at NEADB
top ]
10. REFERENCES

- T. Ise, T. Yamazaki and Y. Nakahara:
  'FEM-BABEL' - A Computer Program for Solving Three-Dimensional Diffusion Equation by the Finite Element Method
  JAERI 1256 (1978).
top ]
11. HARDWARE REQUIREMENTS: MACHINE REQUIREMENTS
top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0545/01 FORTRAN-IV
top ]
13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  Standard
top ]
14. ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

The  following I/O files (units) are required: 1,2,3,4,5(card input), 6(printer),8,9,10,11,12,13,and 14.
top ]
15. NAME AND ESTABLISHMENT OF AUTHOR

    T. Ise, T. Yamazaki and Y. Nakahara,
    Japan Atomic Energy Research Institute,
    Tokai-Mura, Ibaraki-ken, Japan
top ]
16. MATERIAL AVAILABLE
NEA-0545/01
File name File description Records
NEA0545_01.001 INFORMATION 22
NEA0545_01.002 FEM-BABEL SOURCE (F4) 2811
NEA0545_01.003 JCL FOR COMPILATION AND LINKAGE EDIT 8
NEA0545_01.004 FEMADD SOURCE (F4) 112
NEA0545_01.005 JCL FOR C&L (FEMADD) 8
NEA0545_01.006 JCL FOR LINK (FEM-BABEL&FEMADD) 17
NEA0545_01.007 S.P. INPUT WITH JCL 67
NEA0545_01.008 PRINTED OUT OF S.P. 549
top ]
17. CATEGORIES
  • C. Static Design Studies

Keywords: finite element method, multigroup, neutron diffusion equation, three-dimensional.