last modified: 30-AUG-1996 | catalog | categories | new | search |

CCC-0634 DUST-BNL.

DUST-BNL, Radioactive Waste Transport from Container Leaks into Ground Water

top ]
1. NAME OR DESIGNATION OF PROGRAM:  DUST-BNL.
top ]
2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
DUST-BNL CCC-0634/01 Tested 30-AUG-1996

Machines used:

Package ID Orig. computer Test computer
CCC-0634/01 IBM PC PC Pentium 75
top ]
3. DESCRIPTION OF PROGRAM OR FUNCTION

DUST solves for release and transport of contaminants from containerized wastes. Each container  may have unique properties (i.e. time to failure or localized failure, e.g. pitting) and each waste form may have unique release properties. Release from the waste form is limited by one of four physical or chemical restraints: solubility, diffusion, dissolution, and surface wash-off with partitioning. The release from the waste form acts as a source for transport in the advection/dispersion equation. Transport is modeled in one-dimension through the groundwater pathway from subsurface disposal. RNUCL.DAT, data base of half-lives, solubility limits, and atomic mass for selected radionuclides, is included in this package.
top ]
4. METHOD OF SOLUTION

The advection/dispersion transport equation with spatially varying sources (waste forms) is solved using the method of finite-differences. Advancement in time is achieved using  the fully implicit backward Euler scheme. An option exists which permits an analytical solution to the advection equation with spatially varying sources. This procedure is an extension of the mixing-cell cascade models. Radioactive decay and sorption processes are included in either model. Container performance is calculated through empirical correlations and user-supplied input data. Waste form release characteristics are simulated with geometry-dependent (rectangular or cylindrical waste forms) analytical solutions to the diffusion equation. Dissolution is modeled through an input value specifying yearly fractional release rate and rinse release with partitioning is simulated using user-supplied values. In all cases,  checks are made to prevent solubility limits from being exceeded.
top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

One-dimensional.
Maximum problem size is 1000 time steps and 500 computational points. These can be readjusted by redimensioning the code.
Maximum number of waste containers and waste forms is 300.
Maximum number of materials is 10 (i.e. number of regions with different transport properties).
Water flow is treated through tabular input. Flow rates must be estimated by other computer codes.
Simulates only a single-species.
Changes in chemistry over time are not modeled.
top ]
6. TYPICAL RUNNING TIME

For a problem with 100 computational points and 100 time steps the run time is less than 5 seconds on a 486/50 IBM PC compatible.
CCC-0634/01
NEA-DB executed the test cases included in this package on a Pentium PC/75MHz. The following execution times were found: CASE8-4: 12 sec; CASE8-6: 5 sec; FDMEX: 6 sec; MCMCEX: 3 sec.
top ]
7. UNUSUAL FEATURES OF THE PROGRAM:
top ]
8. RELATED AND AUXILIARY PROGRAMS:
top ]
9. STATUS
Package ID Status date Status
CCC-0634/01 30-AUG-1996 Tested at NEADB
top ]
10. REFERENCES

T.M. Sullivan:
Selection of Models to Calculate the LLW Source Term
NUREG/CR-5773, BNL-NUREG-52295 (October 1991)
CCC-0634/01, included references:
- T.M. Sullivan:
  DUST - Disposal Unit Source Term: Data Input Guide
  NUREG/CR-6041, BNL-NUREG-52375 (May 1993)
top ]
11. MACHINE REQUIREMENTS

An IBM PC or compatible with a minimum of a
386 processor. 500K of RAM of available conventional RAM is required for execution. Approximately 4 MB of disk space is required for the  entire code package.
CCC-0634/01
NEA-DB installed the program on a Brett Pentium 75MHz with 16 MB of RAM
top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0634/01 FORTRAN-77
top ]
13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The GRAFXT utility was compiled using the Lahey Fortran v5.0 graphics library.  You will need the compiler if you recompile the source for GRAFXT. The included executables are bound with the Phar Lap DOS extender and do not require the Lahey Fortran package to execute.
CCC-0634/01
NEA-DB ran the program under Windows 95 - DOS 7.0. The  source files were compiled with the Lahey Fortran compiler version 5.2 and with Lahey Fortran version 5.0 for GRAFXT.
top ]
14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
top ]
15. NAME AND ESTABLISHMENT OF AUTHORS

Contributed by:
                Radiation Safety Information Computational Center
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.

Developed by:
                Brookhaven National Laboratory
                Upton, New York, USA
top ]
16. MATERIAL AVAILABLE
CCC-0634/01
File name File description Records
CCC0634_01.001 Information file 233
CCC0634_01.002 DUST Source code 3325
CCC0634_01.003 DUST Executable file 0
CCC0634_01.004 Graphics source code 1894
CCC0634_01.005 Graphics executable file 0
CCC0634_01.006 Pre-processor source code 4877
CCC0634_01.007 Pre-processor executable file 0
CCC0634_01.008 IOSWTCH source file 92
CCC0634_01.009 IOSWTCH executable file 0
CCC0634_01.010 Data on radionuclide names 290
CCC0634_01.011 Mixing cell cascade test problem 70
CCC0634_01.012 Output file CASE8-4 1223
CCC0634_01.013 CONCENTRATION TRACE FILE FOR CASE8-4.INP 87
CCC0634_01.014 Flux trace file for CASE8-4.INP 87
CCC0634_01.015 Finite difference test problem 88
CCC0634_01.016 Output file for CASE8-6.INP 2588
CCC0634_01.017 Concentration trace file for CASE8-6.INP 87
CCC0634_01.018 Flux trace file for CASE8-6.INP 87
CCC0634_01.019 FD Model example 97
CCC0634_01.020 Output file from FDMEX.INP 1450
CCC0634_01.021 Concentration trace file from FDMEX.INP 27
CCC0634_01.022 Flux trace file from FDMEX.INP 27
CCC0634_01.023 Concentrations at each location file (FDMEX) 375
CCC0634_01.024 Wateform release data file (FDMEX) 1063
CCC0634_01.025 MCMC model example 66
CCC0634_01.026 MCMC model example output 576
CCC0634_01.027 Concentration trace file for MCMCEX.INP 32
CCC0634_01.028 Flux trace file for MCMCEX.INP 32
CCC0634_01.029 Block file for CASE8-6 for use by DUSTIN 808
CCC0634_01.030 Block file for CASE8-4 for use by DUSTIN 807
CCC0634_01.031 DOS file-names 30
top ]
17. CATEGORIES
  • G. Radiological Safety, Hazard and Accident Analysis
  • R. Environmental and Earth Sciences

Keywords: containers, containment systems, environmental transport, ground water, liquid wastes, radioactive release, radioactive waste storage, radioactivity transport.