CCC-0613 VALE-1.1.
VALE-1.1, 2-D, 3-D MultiGroup Neutron Diffusion for Triangular Problems
NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
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| Program name | Package id | Status | Status date |
|---|---|---|---|
| VALE-1.1 | CCC-0613/03 | Tested | 03-JUL-1995 |
| VALE-1.1 | CCC-0613/04 | Tested | 22-AUG-1995 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| CCC-0613/03 | PC-80386 | PC-80486 |
| CCC-0613/04 | RISC 6000 | ALPHA/AXP |
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3. DESCRIPTION OF PROGRAM OR FUNCTION
VALE is a multigroup neutron diffusion code for solving two- and three-dimensional problems in triagonal geometries. It is a companion code module to the VENTURE neutronics code module in the BOLD VENTURE code system. VALE is a stand-alone code that can be run independently of the BOLD VENTURE system.
A variety of types of problems may be solved: the usual neutron flux eigenvalue problem, or a direct criticality search on buckling, on a reciprocal velocity absorber (prompt mode), or on nuclide concentrations. The adjoint problem and fixed source problems may be solved, as well as the dominating higher harmonic, or the importance problem for an arbitrary fixed source. Also implemented is a parametrized formulation that allows part of the absorption term to lie off the matrix diagonal (Taylor series, linear flux, and linear finite element equation formulation methods). The mesh points are located at the material junctures (mesh edge) on planes and mesh centered between planes. The mesh may be 120, 60, or 30 degrees. It is not necessary to treat a parallelogram. With 60 degree mesh point arrangement, only a triangle, or a truncated triangle may be treated. With 30 degree mesh arrangement, a pie shaped section may be treated. There is provision for the more commonly used boundary conditions including the repeating boundary, 180 degree rotational symmetry, and the rotational symmetry conditions for the 30 degree, 60 degree, and 120 degree triangular grids on planes.
VALE is a multigroup neutron diffusion code for solving two- and three-dimensional problems in triagonal geometries. It is a companion code module to the VENTURE neutronics code module in the BOLD VENTURE code system. VALE is a stand-alone code that can be run independently of the BOLD VENTURE system.
A variety of types of problems may be solved: the usual neutron flux eigenvalue problem, or a direct criticality search on buckling, on a reciprocal velocity absorber (prompt mode), or on nuclide concentrations. The adjoint problem and fixed source problems may be solved, as well as the dominating higher harmonic, or the importance problem for an arbitrary fixed source. Also implemented is a parametrized formulation that allows part of the absorption term to lie off the matrix diagonal (Taylor series, linear flux, and linear finite element equation formulation methods). The mesh points are located at the material junctures (mesh edge) on planes and mesh centered between planes. The mesh may be 120, 60, or 30 degrees. It is not necessary to treat a parallelogram. With 60 degree mesh point arrangement, only a triangle, or a truncated triangle may be treated. With 30 degree mesh arrangement, a pie shaped section may be treated. There is provision for the more commonly used boundary conditions including the repeating boundary, 180 degree rotational symmetry, and the rotational symmetry conditions for the 30 degree, 60 degree, and 120 degree triangular grids on planes.
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4. METHOD OF SOLUTION
Inner-outer iterations are done with restrained line overrelaxation, and asymptotic flux extrapolation done when distinct error modes are established. Normally the eigenvalue of a problem is calculated each outer iteration from an overall neutron balance; however, source ratios are used in some situations.
Inner-outer iterations are done with restrained line overrelaxation, and asymptotic flux extrapolation done when distinct error modes are established. Normally the eigenvalue of a problem is calculated each outer iteration from an overall neutron balance; however, source ratios are used in some situations.
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6. TYPICAL RUNNING TIME
A three dimensional problem with 36 planes and 324 points per plane requires approximately 40 minutes on a
386-33 PC, and 4 minutes on a work station. RSIC tested the problem VALESAMP.INP on an IBM RISC 6000 Model 550; the problem took 98 seconds of CPU time. On a PC 486/33, VALESAMP.INP took about minutes.
A three dimensional problem with 36 planes and 324 points per plane requires approximately 40 minutes on a
386-33 PC, and 4 minutes on a work station. RSIC tested the problem VALESAMP.INP on an IBM RISC 6000 Model 550; the problem took 98 seconds of CPU time. On a PC 486/33, VALESAMP.INP took about minutes.
CCC-0613/03
The 9 test cases included in this package were executed at the NEA Data Bank on a PC/80486 (66 MHz) in about 2 hours.CCC-0613/04
The 9 test cases included in this package were executed at the NEA Data Bank on a DEC 3000 Alpha/AXP workstation in about 24 minutes.[ top ]
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| Package ID | Status date | Status |
|---|---|---|
| CCC-0613/03 | 03-JUL-1995 | Tested at NEADB |
| CCC-0613/04 | 22-AUG-1995 | Tested at NEADB |
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10. REFERENCES
- RSIC Computer Code Collection, CCC-459B&C (March 1991). (This is a rewrite of Reference 2 above).
- G.E. Bosler, R.D. O'Dell and W.M. Resnik:
LASIP-III, A Generalized Processor for Standard Interface Files
LA-6280-MS (April 1976).
- D.R. Vondy, T.B. Fowler and G.W. Cunningham:
VENTURE, A Code Block for Solving Multigroup Neutronics Problems
Applying the Finite-Difference Diffusion-Theory Approximation to
Neutron Transport, Version II
ORNL-5062/R1 (November 1977).
- RSIC Computer Code Collection, CCC-459B&C (March 1991). (This is a rewrite of Reference 2 above).
- G.E. Bosler, R.D. O'Dell and W.M. Resnik:
LASIP-III, A Generalized Processor for Standard Interface Files
LA-6280-MS (April 1976).
- D.R. Vondy, T.B. Fowler and G.W. Cunningham:
VENTURE, A Code Block for Solving Multigroup Neutronics Problems
Applying the Finite-Difference Diffusion-Theory Approximation to
Neutron Transport, Version II
ORNL-5062/R1 (November 1977).
CCC-0613/03, included references:
- T.B. Fowler et al.:Changes to CCC-613/VALE - For Release Version 1.1, (June 30, 1993)
- T.B. Fowler et al.:
Computer Code Abstract - VALE (Release Version 1.0)
- D.R. Vondy et al.:
Neutronics Code Vale for Two-Dimensional Triagonal (Hexagonal)
and Three-Dimensional Geometries
ORNL-5792 (August 1981)
- D.R. Vondy et al.:
The Bold Venture Computation System for Nuclear Core Analysis,
Version III,
ORNL-5711 (June 1981)
- D.R. Vondy et al.:
Input Data Requirements for Special Processors in the Computation
System Containing the Venture Neutronics Code,
ORNL-5229/R1 (July 1979)
CCC-0613/04, included references:
- T.B. Fowler et al.:Changes to CCC-613/VALE - For Release Version 1.1, (June 30, 1993)
- T.B. Fowler and J.P. Renier:
Computer Code Abstract - VALE (Relesase Version 1.0)
- D.R. Vondy et al.:
Neutronics Code Vale for Two-Dimensional Triagonal (Hexagonal)
and Three-Dimensional Geometries
ORNL-5792 (August 1981)
- D.R. Vondy et al.:
The Bold Venture Computation System for Nuclear Core Analysis,
Version III,
ORNL-5711 (June 1981)
- D.R. Vondy et al.:
Input Data Requirements for Special Processors in the Computation
System Containing the Venture Neutronics Code,
ORNL-5229/R1 (July 1979)
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11. MACHINE REQUIREMENTS
VALE will run on a 386 or 486 PC with a Math coprocessor or an IBM RISC/6000 Work Station.
VALE will run on a 386 or 486 PC with a Math coprocessor or an IBM RISC/6000 Work Station.
CCC-0613/03
The program was installed and tested by the NEA Data Bank on a DELL 466/L PC/80486 (66 MHz).CCC-0613/04
The program was implemented at the NEA Data Bank on aDEC 3000 Model 300X Alpha/AXP architecture workstation.
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| Package ID | Computer language |
|---|---|
| CCC-0613/03 | FORTRAN-77 |
| CCC-0613/04 | FORTRAN-77 |
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED
VALE consists of approximately 400 subroutines (approximately 50000 FORTRAN statements), which when compiled creates an executable file of approximately 1.5 megabytes. VALE-PC was compiled with the Lahey Extended Memory Compiler F77L-EM/32, Version 5.01, and VALE-WS was compiled with the AIX XL FORTRAN Compiler/6000, Version 2.2 and 2.3. All of the large arrays are stored in one data container array "A", dimensioned A(IP1 + IP2 X 1,000,000) where IP1 and IP2 are defined in Reference 2 below. For VALE-PC this dimension is allocated at run time. For VALE-WS, "A" was compiled with a dimension of 2,000,000 (4-byte words) in the main program. The input for a problem must be a file named VALE.INP. To run a problem, copy the input in VALE.INP and at the prompt type VALE. The output will be written on a file named VALE.OUT. A condensed output file (VALE.CND) is also written. The code may create as many as 30 or more scratch I/O files (sequential and direct access) during execution, depending upon the problem being run and the memory available. VALE chooses one of two modes of data storage during the iterative procedure: 1) if enough memory is available, data is I/O-ed for all mesh points for each energy group, 2) otherwise data is I/O-ed for several planes of points for each energy group. Provision has been made to specify as input two data items for opening direct access files. These input items are IP3 and IP4 in the "USER INPUT INSTRUCTIONS TO CONTROL MODULE CONTROL1" (Reference 2 below). If IP3=0, bytes will be used for the RECL parameter in direct access OPEN statements. If IP3=1, 4-byte words will be used. VAX uses words. Most other compilers use bytes. IP4 is the maximum record length allowed (specified as 4-byte words) for RECL. This also varies with the compiler being used. The default values are 0 for IP3 8000 for IP4.
VALE consists of approximately 400 subroutines (approximately 50000 FORTRAN statements), which when compiled creates an executable file of approximately 1.5 megabytes. VALE-PC was compiled with the Lahey Extended Memory Compiler F77L-EM/32, Version 5.01, and VALE-WS was compiled with the AIX XL FORTRAN Compiler/6000, Version 2.2 and 2.3. All of the large arrays are stored in one data container array "A", dimensioned A(IP1 + IP2 X 1,000,000) where IP1 and IP2 are defined in Reference 2 below. For VALE-PC this dimension is allocated at run time. For VALE-WS, "A" was compiled with a dimension of 2,000,000 (4-byte words) in the main program. The input for a problem must be a file named VALE.INP. To run a problem, copy the input in VALE.INP and at the prompt type VALE. The output will be written on a file named VALE.OUT. A condensed output file (VALE.CND) is also written. The code may create as many as 30 or more scratch I/O files (sequential and direct access) during execution, depending upon the problem being run and the memory available. VALE chooses one of two modes of data storage during the iterative procedure: 1) if enough memory is available, data is I/O-ed for all mesh points for each energy group, 2) otherwise data is I/O-ed for several planes of points for each energy group. Provision has been made to specify as input two data items for opening direct access files. These input items are IP3 and IP4 in the "USER INPUT INSTRUCTIONS TO CONTROL MODULE CONTROL1" (Reference 2 below). If IP3=0, bytes will be used for the RECL parameter in direct access OPEN statements. If IP3=1, 4-byte words will be used. VAX uses words. Most other compilers use bytes. IP4 is the maximum record length allowed (specified as 4-byte words) for RECL. This also varies with the compiler being used. The default values are 0 for IP3 8000 for IP4.
CCC-0613/03
The installation at the NEA Data Bank was done under MS-DOS 6.20. The source programs were compiled with the Lahey Extended Memory Compiler F77L-EM/32, Version 5.20.CCC-0613/04
The program was tested at the NEA Data Bank on a DEC Alpha workstation running under OSF/1 V2.1. The source codes were compiled using the DEC f77 Fortran compiler and the DEC C compiler.[ top ]
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CCC-0613/03
| File name | File description | Records |
|---|---|---|
| CCC0613_03.001 | Information file | 219 |
| CCC0613_03.002 | VALE001.FOR Subprogram file | 2969 |
| CCC0613_03.003 | VALE002.FOR Subprogram file | 2782 |
| CCC0613_03.004 | VALE003.FOR Subprogram file | 2625 |
| CCC0613_03.005 | VALE004.FOR Subprogram file | 1899 |
| CCC0613_03.006 | VALE005.FOR Subprogram file | 810 |
| CCC0613_03.007 | VALE006.FOR Subprogram file | 1177 |
| CCC0613_03.008 | VALE007.FOR Subprogram file | 1375 |
| CCC0613_03.009 | VALE008.FOR Subprogram file | 1513 |
| CCC0613_03.010 | VALE009.FOR Subprogram file | 2912 |
| CCC0613_03.011 | VALE010.FOR Subprogram file | 2498 |
| CCC0613_03.012 | VALE011.FOR Subprogram file | 2250 |
| CCC0613_03.013 | VALE012.FOR Subprogram file | 1595 |
| CCC0613_03.014 | VALE013.FOR Subprogram file | 1511 |
| CCC0613_03.015 | VALE014.FOR Subprogram file | 2013 |
| CCC0613_03.016 | VALE015.FOR Subprogram file | 1782 |
| CCC0613_03.017 | VALECTRL.FOR Subprogram file | 1955 |
| CCC0613_03.018 | VALEINOP.FOR Subprogram file | 559 |
| CCC0613_03.019 | VALEIPR1.FOR Subprogram file | 2089 |
| CCC0613_03.020 | VALEIPR2.FOR Subprogram file | 2356 |
| CCC0613_03.021 | VALEROOT.FOR Subprogram file | 2575 |
| CCC0613_03.022 | VALESPR1.FOR Subprogram file | 2092 |
| CCC0613_03.023 | VALESPR2.FOR Subprogram file | 1909 |
| CCC0613_03.024 | VALESPR3.FOR Subprogram file | 1752 |
| CCC0613_03.025 | VALEXPR1.FOR Subprogram file | 2017 |
| CCC0613_03.026 | VALEXPR2.FOR Subprogram file | 2070 |
| CCC0613_03.027 | VALEXPR3.FOR Subprogram file | 2054 |
| CCC0613_03.028 | VALEPC.FOR Main program & other subprograms | 644 |
| CCC0613_03.029 | Makefile to compile and link | 25 |
| CCC0613_03.030 | Executable | 0 |
| CCC0613_03.031 | Sample input "SAMP" | 256 |
| CCC0613_03.032 | Sample inputs #1 | 1042 |
| CCC0613_03.033 | Sample inputs #2 | 354 |
| CCC0613_03.034 | Sample inputs #3 | 448 |
| CCC0613_03.035 | Sample inputs #4 | 506 |
| CCC0613_03.036 | Sample input #5 | 248 |
| CCC0613_03.037 | Sample inputs #6 | 394 |
| CCC0613_03.038 | Sample input #7 | 313 |
| CCC0613_03.039 | Sample input #8 | 433 |
| CCC0613_03.040 | Sample output "SAMP" | 1944 |
| CCC0613_03.041 | Sample outputs #1 | 8088 |
| CCC0613_03.042 | Sample outputs #2 | 1262 |
| CCC0613_03.043 | Sample outputs #3 | 2278 |
| CCC0613_03.044 | Sample outputs #4 | 3911 |
| CCC0613_03.045 | Sample output #5 | 1498 |
| CCC0613_03.046 | Sample outputs #6 | 1712 |
| CCC0613_03.047 | Sample output #7 | 1615 |
| CCC0613_03.048 | Sample output #8 | 5868 |
| CCC0613_03.049 | Run-time error message file F77L3.EER | 0 |
| CCC0613_03.050 | DOS file-names | 49 |
CCC-0613/04
| File name | File description | Records |
|---|---|---|
| CCC0613_04.001 | information file | 208 |
| CCC0613_04.002 | FORTRAN subprogram file #1 | 2969 |
| CCC0613_04.003 | FORTRAN subprogram file #2 | 2782 |
| CCC0613_04.004 | FORTRAN subprogram file #3 | 2625 |
| CCC0613_04.005 | FORTRAN subprogram file #4 | 1899 |
| CCC0613_04.006 | FORTRAN subprogram file #5 | 810 |
| CCC0613_04.007 | FORTRAN subprogram file #6 | 1177 |
| CCC0613_04.008 | FORTRAN subprogram file #7 | 1375 |
| CCC0613_04.009 | FORTRAN subprogram file #8 | 1513 |
| CCC0613_04.010 | FORTRAN subprogram file #9 | 2912 |
| CCC0613_04.011 | FORTRAN subprogram file #10 | 2493 |
| CCC0613_04.012 | FORTRAN subprogram file #11 | 2250 |
| CCC0613_04.013 | FORTRAN subprogram file #12 | 1595 |
| CCC0613_04.014 | FORTRAN subprogram file #13 | 1511 |
| CCC0613_04.015 | FORTRAN subprogram file #14 | 2013 |
| CCC0613_04.016 | FORTRAN subprogram file #15 | 1782 |
| CCC0613_04.017 | FORTRAN subprogram file #16 | 1955 |
| CCC0613_04.018 | FORTRAN subprogram file #17 | 559 |
| CCC0613_04.019 | FORTRAN subprogram file #18 | 2089 |
| CCC0613_04.020 | FORTRAN subprogram file #19 | 2356 |
| CCC0613_04.021 | FORTRAN subprogram file #20 | 2575 |
| CCC0613_04.022 | FORTRAN subprogram file #21 | 2092 |
| CCC0613_04.023 | FORTRAN subprogram file #22 | 1909 |
| CCC0613_04.024 | FORTRAN subprogram file #23 | 1752 |
| CCC0613_04.025 | FORTRAN subprogram file #24 | 2017 |
| CCC0613_04.026 | FORTRAN subprogram file #25 | 2070 |
| CCC0613_04.027 | FORTRAN subprogram file #26 | 2054 |
| CCC0613_04.028 | C subprogram file | 20 |
| CCC0613_04.029 | main program and other subroutines | 562 |
| CCC0613_04.030 | Makefile to compile and link (OSF & SunOS) | 24 |
| CCC0613_04.031 | Batch file to compile and link (IBM RISC ws) | 5 |
| CCC0613_04.032 | Batch file to run all sample problems | 41 |
| CCC0613_04.033 | Sample input "SAMP" | 256 |
| CCC0613_04.034 | Sample inputs #1 | 1042 |
| CCC0613_04.035 | Sample inputs #2 | 354 |
| CCC0613_04.036 | Sample inputs #3 | 448 |
| CCC0613_04.037 | Sample inputs #4 | 506 |
| CCC0613_04.038 | Sample input #5 | 248 |
| CCC0613_04.039 | Sample inputs #6 | 394 |
| CCC0613_04.040 | Sample input #7 | 313 |
| CCC0613_04.041 | Sample input #8 | 433 |
| CCC0613_04.042 | Sample output "SAMP" | 1966 |
| CCC0613_04.043 | Sample outputs #1 | 8406 |
| CCC0613_04.044 | Sample outputs #2 | 1305 |
| CCC0613_04.045 | Sample outputs #3 | 2320 |
| CCC0613_04.046 | Sample outputs #4 | 3946 |
| CCC0613_04.047 | Sample output #5 | 1512 |
| CCC0613_04.048 | Sample outputs #6 | 1751 |
| CCC0613_04.049 | Sample output #7 | 1631 |
| CCC0613_04.050 | Sample output #8 | 5885 |
Keywords: criticality searches, diffusion, neutron diffusion equation, neutron flux, two-dimensional.