Computer Programs
NEA-0528 MARC.
last modified: 15-FEB-1990 | catalog | categories | new | search |

NEA-0528 MARC.

MARC, MultiGroup Diffusion in R-Z, X-Y, R-Theta, Slab, Cylindrical, Spherical, Hexagonal, Triangular Geometry

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1. NAME OR DESIGNATION OF PROGRAM:  MARC.
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2. COMPUTERS
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Program name Package id Status Status date
MARC-PN NEA-0528/03 Tested 15-FEB-1990

Machines used:

Package ID Orig. computer Test computer
NEA-0528/03 DEC VAX 8350 DEC VAX 8810
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3. NATURE OF PHYSICAL PROBLEM SOLVED

Regular and adjoint multigroup diffusion equation in r-z, x-y, r-theta, slab, cylindrical, spherical, hexagonal and triangular geometries with various reflective and cyclic boundary conditions. A comprehensive collection of edits is available as specified for CRAM and SCRAMBLE.
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4. METHOD OF SOLUTION

Two methods are available, the CRAM method or the PDQ method.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

CRAM method:
   (12+NDSCAT)*NG*JMAX  must be less than 30000
PDQ  method:
   (6+NDSCAT)*JMAX*IMAX must be less than 30000
   where NG is the number of groups,
   NDSCAT the number of down - scatters and
   IMAX and JMAX are the number of points in x and y directions.
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6. TYPICAL RUNNING TIME
NEA-0528/03
The test case ran at NEADB on a VAX 8810 computer in 113 seconds of CPU time.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
NEA-0528/03 15-FEB-1990 Tested at NEADB
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10. REFERENCES
NEA-0528/03, included references:
- J.K. Fletcher:
  The Solution of the Multigroup Neutron Transport Equation Using
  Spherical Harmonics.
  Reprint from Nuclear Science and Engineering: 84, 33-46(1983)
- J.K. Fletcher:
  A Finite Element Option for the MARC Transport/Diffusion Theory
  Computer Code.
  ND-R560(R)  (January 1981)
- J.K. Fletcher:
  A User's Guide to the MARC and PN Computer Codes.
  TRG Report 2911(R)  (September 1976)
- J.K. Fletcher:
  Further Work on the Solution of the Static Multigroup Neutron
  Transport Equation Using Spherical Harmonics.
  TRG Report 2849(R)  (August 1976)
- J.K. Fletcher:
  The Solution of the Multigroup Neutron Transport Equation Using
  Spherical Harmonics.
  TRG Report 2547(R)  (August 1974)
- J.K. Fletcher:
  A Computer Program to Solve the Three Dimensional Multi-Group
  Diffusion Equation in X, Y, Z and Triangular Z Geometries.
  TRG Report 2344(R)
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11. MACHINE REQUIREMENTS

190k bytes core memory, 6 disc files plus dump tape if required.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0528/03 FORTRAN-77
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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  ICL 4-70 DOS 7J and ICL 2980 VME/B.
NEA-0528/03
VMS V5.1-1 (VAX 8810).
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHOR

      J.K. Fletcher
      Central Technical Services
      United Kingdom Atomic Energy Authority
      Risley, Warrington WA3 6AT
      United Kingdom
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16. MATERIAL AVAILABLE
NEA-0528/03
File name File description Records
NEA0528_03.001 Information file 109
NEA0528_03.002 M1.FOR 820
NEA0528_03.003 M2.FOR 769
NEA0528_03.004 M3.FOR 430
NEA0528_03.005 M4.FOR 457
NEA0528_03.006 M5.FOR 484
NEA0528_03.007 M6.FOR 567
NEA0528_03.008 M7.FOR 652
NEA0528_03.009 M8.FOR 578
NEA0528_03.010 M9.FOR 652
NEA0528_03.011 M10.FOR 693
NEA0528_03.012 M12.FOR 930
NEA0528_03.013 M13.FOR 774
NEA0528_03.014 M14.FOR 636
NEA0528_03.015 M15.FOR 710
NEA0528_03.016 M16.FOR 664
NEA0528_03.017 M17.FOR 354
NEA0528_03.018 M18.FOR 602
NEA0528_03.019 M19.FOR 1098
NEA0528_03.020 M20.FOR 498
NEA0528_03.021 M21.FOR 815
NEA0528_03.022 M22.FOR 352
NEA0528_03.023 M23.FOR 961
NEA0528_03.024 M24.FOR 1087
NEA0528_03.025 M27.FOR 35
NEA0528_03.026 M30.FOR 851
NEA0528_03.027 M33.FOR 19
NEA0528_03.028 DEC77.FOR 300
NEA0528_03.029 MARC.FOR 6
NEA0528_03.030 ORD.DAT 171
NEA0528_03.031 ORD.OUT 2743
NEA0528_03.032 MARCL.COM 5
NEA0528_03.033 MARCR.COM 16
NEA0528_03.034 FD5W.FOR 54
NEA0528_03.035 TRANL.DAT 12278
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17. CATEGORIES
  • B. Spectrum Calculations, Generation of Group Constants and Cell Problems
  • C. Static Design Studies

Keywords: cylinders, hexagonal configuration, multigroup, neutron diffusion equation, r-theta, r-z, slabs, spheres, triangular configuration, x-y.