1. NAME OR DESIGNATION OF PROGRAM - RAPRAN.

2. COMPUTER FOR WHICH PROGRAM IS DESIGNED AND OTHER MACHINE VERSION PACKAGES AVAILABLE -

To request or retrieve programs click on the one of the active versions below. A password and special authorization is required.

Explanation of the status codes.

Program-name Package-ID Status RAPRAN NEA-1539/01 Tested

Machines used: Package-ID Orig.Computer Test Computer NEA-1539/01 Many Computers UNIX gen. W.S.

3. DESCRIPTION OF PROGRAM OR FUNCTION - The code treats one-dimensional advection-diffusion combined with linear sorption to calculate radionuclide migration behavior in multi-porous media with time-dependent diffusion/retardation parameters. It uses both leaching rate and solubility simultaneously to model nuclide release from a waste glass as the inner boundary condition. The program is applied to, for example, the analysis of radionuclide diffusion through the engineered barrier system or radioactive wastes disposal.

4. METHOD OF SOLUTION - Finite-difference method in porous media.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM - None.
Size-adjustable.

6. TYPICAL RUNNING TIME - The test problems Sample1 and Sample2 need about 15 seconds and 10 minutes, respectively, when a non-optimized executive module is used on HP Apollo 9000/735 with operation system HP-UX A.09.07.
Running time increases roughly in proportion to the number of radionuclide and time/spatial meshes.

NEA-1539/01:

The program RAPRAN was installed and executed in a DEC 3000 Model 300 X workstation, equipped with a Alpha architecture processor at 175 MHz, under Digital UNIX (formerly OSF/1) V3.2G (Rev. 62). The time required for execution of the two sample problems was 9.5 s (sample problem #1) and 5 mn 10.4 s (sample problem # 2)

7. UNUSUAL FEATURES OF THE PROGRAM - It calculates migration of radionuclides in multi-member decay chains in multi-layer porous media of various shape without restrictions of the number of radionuclide in the chains and of the number of the layers. It considers space- and time-dependent isotopic sharing of solubilities by isotope ratios in liquid and solid phases. It considers also precipitation of lower soluble daughter nuclides born by their soluble mother nuclides in the media.

8. RELATED AND AUXILIARY PROGRAMS - None.

9. STATUS
NEA-1539/01: 31-OCT-1997 Tested at NEADB

10. REFERENCES  -
NEA-1539/01:
- M. Tsukamoto and T. Fujita:
  RAPRAN User's Manual (Draft)
  (April 1997)
- Masaki Tsukamoto and Tomonari Fujita:
  The Effect of Degradation of Buffer Material on Radionuclide
  Release from Engineered Barrier System for High-Level Waste
  Disposal
  Reprint from Proceedings of the Fifth International Conference
  on Radioactive Waste Management and Environmental Remediation
  Editors: S. Slate, R. Baker, and G. Benda
  Book No. I0382B-1995

11. MACHINE REQUIREMENTS -

NEA-1539/01:

About 2 Megabyte of disk space are required to install the program RAPRAN, compile the source files, run the executables and produce the output files.

12. PROGRAMMING LANGUAGE(S) USED -
NEA-1539/01: FORTRAN-77

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED -

NEA-1539/01:

The program RAPRAN was installed and executed in a DEC 3000 Model 300 X workstation, equipped with a Alpha architecture processor at 175 MHz, under Digital UNIX (formerly OSF/1) V3.2G (Rev. 62). The Digital Fortran-77 compiler (f77) Version 3.4 has been used to compile the source files.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS -

15. NAME AND ESTABLISHMENT OF AUTHORS -
    M. Tsukamoto and T. Fujita
    Central Research Institute of Electric Power Industry
    (CRIEPI)
    Tokyo
    Japan

16. MATERIAL AVAILABLE -
NEA-1539/01:
NEA1539_01.001 Information file of program RAPRAN 379 records
NEA1539_01.002 C-shell installation script 63 records
NEA1539_01.003 Fortran source file of main program 223 records
NEA1539_01.004 Fortran source file of pre-processing module 2876 records
NEA1539_01.005 Fortran source file of post-processing modul 2083 records
NEA1539_01.006 Fortran source file of release model module 532 records
NEA1539_01.007 Fortran source file of num. int. module 1218 records
NEA1539_01.008 Fortran source file of timing routine (U77) 49 records
NEA1539_01.009 Include file # 1 (COMMON blocks) 44 records
NEA1539_01.010 Include file # 2 (COMMON blocks) 7 records
NEA1539_01.011 Include file # 3 (COMMON blocks) 4 records
NEA1539_01.012 Include file # 4 (PARAMETER definition) 14 records
NEA1539_01.013 Include file # 5 (block of code) 83 records
NEA1539_01.014 Include file # 6 (logical unit numbers) 20 records
NEA1539_01.015 Input file, sample problem # 1 151 records
NEA1539_01.016 Input file, sample problem # 2 187 records
NEA1539_01.017 Output file, reference for sample problem 1 4205 records
NEA1539_01.018 Output file, reference for sample problem 2 1759 records
NEA1539_01.019 Output file, sample problem # 1 (NEA/DB) 4205 records
NEA1539_01.020 Output file, sample problem # 2 (NEA/DB) 1759 records

17. CATEGORIES -

- R. Environmental and Earth Sciences

Keywords: advection, porous materials, radioactive waste storage, radionuclide migration