Computer Programs
NEA-1087 TRITAC.
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NEA-1087 TRITAC.

TRITAC, 3-D Transport by Discrete Ordinate Method in X-Y-Z Geometry

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1. NAME OR DESIGNATION OF PROGRAM:  TRITAC.
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2. COMPUTERS
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Program name Package id Status Status date
TRITAC NEA-1087/01 Tested 26-OCT-1988

Machines used:

Package ID Orig. computer Test computer
NEA-1087/01 ACOS-1000 DEC VAX 8810
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3. DESCRIPTION OF PROGRAM OR FUNCTION

An integro-differential trans-  port equation in three-dimensional x-y-z geometry.
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4. METHOD OF SOLUTION

The three-dimensional transport calculation is  performed on the basis of the discrete ordinates method with the diffusion synthesis acceleration technique.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Variable dimension-  ing is used so that any combination of problem parameters leading to a container array less than LIMIT can be accomodated.
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6. TYPICAL RUNNING TIME

An 8-group, S8, 16x16x12 meshes, keff calculation of a FBR model requires about 2 minutes on an ACOS 1000  computer.
NEA 1087/01: The test case included in this package has been executed at NEA-DB on a VAX 8810 computer in 20 seconds of CPU time.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS:
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9. STATUS
Package ID Status date Status
NEA-1087/01 26-OCT-1988 Tested at NEADB
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10. REFERENCES:
NEA-1087/01, included references:
- TRITAC (V. 3.0) Input Format
- M. Bando, T. Yamamoto, Y. Saito & T. Takeda:
  Technical Report - Three-Dimensional Transport Calculation Method
  for Eigenvalue Problems Using Diffusion Synthetic Acceleration
  Reprint: J. Nucl. Sci. & Tech. 22, 841 (1985)
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11. MACHINE REQUIREMENTS:
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-1087/01 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
NEA-1087/01
VAX/VMS V5.0-1.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHORS

   Masaru BANDO, Toshihisa YAMAMOTO, Yoshihiro SAITO,
   Toshikazu TAKEDA:
   Osaka University, Japan
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16. MATERIAL AVAILABLE
NEA-1087/01
File name File description Records
NEA1087_01.001 Information file 71
NEA1087_01.002 TRITAC FORTRAN77 source 5265
NEA1087_01.003 Dummy subroutines (DATE,CPTIME) 7
NEA1087_01.004 Input data of sample problem 54
NEA1087_01.005 Output of sample problem 897
NEA1087_01.006 JCL for ACOS-100 9
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17. CATEGORIES
  • C. Static Design Studies

Keywords: discrete ordinate method, three-dimensional, transport.