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NEA-0843 RANCH.

RANCH, Radionuclide Migration in Geological Media

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1. NAME OR DESIGNATION OF PROGRAM:  RANCH.
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2. COMPUTERS
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Program name Package id Status Status date
RANCHMD NEA-0843/04 Tested 21-AUG-1991

Machines used:

Package ID Orig. computer Test computer
NEA-0843/04 DEC VAX 8810
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3. DESCRIPTION OF PROBLEM OR FUNCTION

One-dimensional transport of radionuclide chains through layered geological media, taking into account longitudinal dispersion, convection and retention.
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4. METHOD OF SOLUTION

Semi-analytical solution by Laplace transform.
Convolution integrals.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Maximum 4 nuclides and 10 layers. Peclet number large compared to 1.
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6. TYPICAL RUNNING TIME

Depending on problem specification, typically 10 to 500 seconds.
NEA-0843/04
NEA-DB ran the test cases included in this package on a VAX 8810 computer. The following CPU times were required:
BOE1093: 37s; GV1A: 3m15s; GVEA1: 1m36s; SEDI_3_18: 2m09s.
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7. UNUSUAL FEATURES OF THE PROGRAM

Arbitrary concentration boundary,  restart possibilities.
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8. RELATED AND AUXILIARY PROGRAMS

CONZRA to calculate concentration boundary from injection rate. RANCHT to define time steps in the RANCH calculation.
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9. STATUS
Package ID Status date Status
NEA-0843/04 21-AUG-1991 Tested at NEADB
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10. REFERENCES

- J. Hadermann and J. Patry
   Nucl. Technol. 54 (1981) 266.
   EIR-Internal Technical Report TM-RZ-70. TM-15-80-2.
NEA-0843/04, included references:
- J. Hadermann and F. Roesel:
  Radionuclide Chain Transport in Inhomogeneous Crystalline Rocks
  Limited Matrix Diffusion and Effective Surface Sorption
  Technical Report 85-40 (February 1985).
- R.W. Hartley:
  Release of Radionuclides to the Geosphere from a Repository for
  High-Level Waste-Mathematical Model and Results
  EIR-Bericht Nr. 554 (February 1985).
- J. Hadermann and A. Jakob:
  Modelling Small Scale Infiltration Experiments into Bore Cores of
  Crystalline Rock and Break-Through Curves
  EIR-Bericht Nr. 622 (April 1987).
- RANCHMD - Radio Nuclide Chain Transport with Matrix Diffusion
  (Version: February 1990).
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11. MACHINE REQUIREMENTS

Variable main storage requirements, depending on problem specification. Typically CM100,000 to CM140,000. Disk files TAPE 11, TAPE12, TAPE13.
The execution of the test case on CDC CYBER 175 requires 140,000 octal words of main storage.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0843/04 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
SCOPE 3.4.1/NOS-BE.
NEA-0843/04
VMS V5.3 (VAX 8810).
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
CDC accuracy is required.
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15. NAME AND ESTABLISHMENT OF AUTHOR

J. Patry and J. Hadermann
Swiss Federal Institute for Reactor Research
CH-5303 Wuerenlingen, Switzerland.
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16. MATERIAL AVAILABLE
NEA-0843/04
File name File description Records
NEA0843_04.001 Information file 87
NEA0843_04.002 Command file to compile and link RANCHMD 4
NEA0843_04.003 Command file to run case BOE1093 36
NEA0843_04.004 Command file to run case GV1A 36
NEA0843_04.005 Command file to run case GV3A1 36
NEA0843_04.006 Command file to run case SEDI_3_18 36
NEA0843_04.007 Input data file when the flaf IQART=1 1652
NEA0843_04.008 Input data file for sample problem BOE1093 17
NEA0843_04.009 Input data file for sample problem GV1A 45
NEA0843_04.010 Input data file for sample problem GV3A1 54
NEA0843_04.011 Input data file for sample problem SEDI_3_18 66
NEA0843_04.012 Main source file 813
NEA0843_04.013 First module of the program 2022
NEA0843_04.014 Second module of the program 1545
NEA0843_04.015 Third module of the program 1085
NEA0843_04.016 Executable file of RANCHMD 130
NEA0843_04.017 Plot data for the case BOE1093 250
NEA0843_04.018 Plot data for the case GV1A 1000
NEA0843_04.019 Plot data for the case GV3A1 1552
NEA0843_04.020 Plot data for the case SEDI_3_18 1096
NEA0843_04.021 BOE1093 sample output 340
NEA0843_04.022 GV1A sample output 1227
NEA0843_04.023 GV3A1 sample output 1736
NEA0843_04.024 SEDI_3_18 sample output 1314
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17. CATEGORIES
  • R. Environmental and Earth Sciences

Keywords: ground water, radioactivity transport.