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CCC-0633 BLT-FEMWATER.

BLT, Waste Transport through Porous Media from Container Failure

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1. NAME OR DESIGNATION OF PROGRAM:  BLT-FEMWATER.
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2. COMPUTERS
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Program name Package id Status Status date
BLT CCC-0633/01 Tested 05-JUN-1997

Machines used:

Package ID Orig. computer Test computer
CCC-0633/01 IBM PC PC Pentium 100
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3. DESCRIPTION OF PROGRAM OR FUNCTION

The BLT code 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 constraints: 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 two-dimensions through the groundwater pathway from subsurface disposal.
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4. METHOD OF SOLUTION

The advection/dispersion transport equation with spatially varying sources (waste forms) is solved in two-dimensions using the method of finite elements. Advancements in  time is controlled by user supplied input. It is recommended to use  the fully implicit backward Euler scheme. However, Cranck-Nicolson and explicit time step algorithms are provided. Radioactive decay and sorption processes are included in the 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 the dissolution rate. Rinse release with partitioning is simulated with user supplied values. In all cases, checks are made to prevent solubility limits from being exceeded.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Two-dimensional.
Maximum problem size is 500 time steps and 400 computational points. These can be readjusted by redimensioning the code.
Maximum number of waste containers and waste forms is 100.* Maximum number of materials is 10 (i.e., number of regions with different transport properties).
Maximum number of different container and waste form types is 20.
Simulates only a single-species.
Changes in chemistry over time are not modeled.
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6. TYPICAL RUNNING TIME

For a problem with 120 computational points and 100 time steps, run time is approximately 50 seconds on a
486/50.
CCC-0633/01
The programs were tested at the NEA/DB on a PC Optiplex GXM 5100 equipped with a Pentium processor of 99 MHz and 32 MByte of extended memory. The running time for all the BLT sample problems is a few seconds. The execution time required to run the program FEMWATER is also of a few seconds.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

FEMWATER - two-dimensional finite-element program that calculates unsaturated/saturated water flow in subsurface media. This program was developed at Oak Ridge National Laboratory. Only minor modifications to permit the code to run under DOS instead of a VMS system were performed on this code.
GRAFBLT - graphics post-processor to view code output. REDIMGRD - program to take the larger grid domain used to calculate  water flow and recalculate a new smaller grid used for examining the source term region in detail.
Note: BLT is an extension of the code FEMWASTE originally developed  at Oak Ridge National Laboratory and available from RSIC as CCC-0451. BLT uses the contaminant transport routines supplied by FEMWASTE and has extended capabilities to model container and waste  form performance.
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9. STATUS
Package ID Status date Status
CCC-0633/01 05-JUN-1997 Tested at NEADB
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10. REFERENCES

- G.T. Yeh and D.S. Ward:
  FEMWASTE: A Finite Element Model of Waste Transport through
  Saturated-Unsaturated Porous Media
  ORNL-5601 (April 1981)
- G.T. Yeh and D.S. Ward:
  FEMWATER: A Finite Element Model of Water Flow through
  Saturated-Unsaturated Porous Media
  ORNL-5567 (October 1980)
- C.J. Suen and T.M. Sullivan:
  Sensitivity Analysis and Benchmarking of the BLT Low-Level Waste
  Source Term Code
  NUREG/CR-5943, BNL-NUREG-52346 (1993)
- T.M. Sullivan and C.J. Suen:
  Low-Level Waste Source Term Model Development and Testing
  NUREG/CR-5681, BNL-NUREG-52280 (May 1991)
CCC-0633/01, included references:
- T.M. Sullivan and C.J. Suen:
  Low-Level Waste Shallow Land Disponsal Source Term Model: Data
  Input Guides
  NUREG/CR-5387, BNL-NUREG-52206 (July 1989)
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11. MACHINE REQUIREMENTS

An IBM PC or compatible with a minimum of a
386 processor. 500K of available conventional memory is required for execution. Approximately 4MB of disk space is required for installation. A color monitor is recommended for better contour differentiation.
CCC-0633/01
The filesizes of the executables created using the Lahey compiler, using the option '-stub runb' during linkage are: BLT.EXE - 638 Kbyte; GRAFBLT.EXE - 313 Kbyte; FEMWATER.EXE - 650 Kbyte; REDIMGRD.EXE - 374 Kbyte.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
CCC-0633/01 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

Lahey Fortran 5.0 was used to create the executable included in the package which were tested at RSIC both in a DOS window of Windows 95 and under MS-DOS 6.22. The graphics program. GRAFBLT, was compiled using the LAHEY FORTRAN version 5.0 graphics library. The program should automatically detect the graphics capability of the monitor. It has  been tested on color monitors (SVGA) and black and white monitors (Hercules graphics card). However, the contour plotting routines in  GRAFBLT rely on color to differentiate between contours. Other routines work acceptably on black and white monitors.
CCC-0633/01
The programs were tested at the NEA/DB on a PC Optiplex GXM 5100 equipped with a Pentium processor of 99 MHz and 32 MByte of extended memory, under MS-DOS 6.2. The Lahey FORTRAN-77 compiler F77L/EM-32 Version 5.20 and linker (Version 5.1) were used respectively to compile the source files and create the executables. The graphics subroutines of the Lahey GRAPHORIA library have been linked to created the executable of program GRAFBLT.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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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, NY, U.S.A.
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16. MATERIAL AVAILABLE
CCC-0633/01
File name File description Records
CCC0633_01.001 Information file of package BLT 430
CCC0633_01.002 Source file of program BLT 5784
CCC0633_01.003 Source file of auxiliary program GRAFBLT 1505
CCC0633_01.004 Author's executable file of program BLT 0
CCC0633_01.005 Author's executable file of program GRAFBLT 0
CCC0633_01.006 Instructions on using the waste form Kd mode 168
CCC0633_01.007 Source file (part 1) of program FEMWATER 1133
CCC0633_01.008 Source file (part 2) of program FEMWATER 1096
CCC0633_01.009 Source file (part 3) of program FEMWATER 1049
CCC0633_01.010 Source file (part 4) of program FEMWATER 1108
CCC0633_01.011 Source file of auxiliary program REDIMGRD 302
CCC0633_01.012 Author's executable file of program FEMWATER 0
CCC0633_01.013 Author's executable file of program REDIMGRD 0
CCC0633_01.014 FEMWATER input deck, problem NUREG/CR-5387 149
CCC0633_01.015 FEMWATER main output file pb. NUREG/CR-5387 1730
CCC0633_01.016 FEMWATER aux. output file pb. NUREG/CR-5387 1196
CCC0633_01.017 FEMWATER aux. output file pb. NUREG/CR-5387 596
CCC0633_01.018 Auxiliary file 35
CCC0633_01.019 FEMWATER auxiliary input file 293
CCC0633_01.020 FEMWATER auxiliary input file for BLTTEST 596
CCC0633_01.021 Input deck for problem in NUREG/CR-5387 66
CCC0633_01.022 Input deck for sample problem INPR7A 43
CCC0633_01.023 Input deck for sample problem INPR7FD 43
CCC0633_01.024 Input deck for sample problem TESTKD 45
CCC0633_01.025 BLT output file for sample problem BLTTEST 2140
CCC0633_01.026 BLT output file for sample problem INPR7A 2300
CCC0633_01.027 BLT output file for sample problem INPR7FD 3700
CCC0633_01.028 BLT output file for sample problem TESTKD 2522
CCC0633_01.029 BLT restart file for sample problem BLTTEST 1853
CCC0633_01.030 BLT restart file for sample problem INPR7A 635
CCC0633_01.031 BLT restart file for sample problem INPR7FD 635
CCC0633_01.032 BLT restart file for sample problem TESTKD 0
CCC0633_01.033 Leach release mass rate, problem INPR7A 375
CCC0633_01.034 Leach mass release, problem INPR7A 375
CCC0633_01.035 Leach release rate, problem INPR7FD 375
CCC0633_01.036 Leach mass release, problem INPR7FD 375
CCC0633_01.037 Concentration traces from input file INPR7FD 375
CCC0633_01.038 Source code of program BLTPLOT 3754
CCC0633_01.039 Parameters used in the INCLUDE statements 34
CCC0633_01.040 Author's executable file of program BLTPLOT 0
CCC0633_01.041 Configuration file for BLTPLOT 32
CCC0633_01.042 Plot symbol set file 0
CCC0633_01.043 BLT sample input file 67
CCC0633_01.044 Velocity file created by FEMWATER 596
CCC0633_01.045 Leach release rate file, created by BLT 1000
CCC0633_01.046 Leach mass release file, created by BLT 1000
CCC0633_01.047 Concentration trace file created by BLT 27
CCC0633_01.048 Flux trace file created by BLT 25
CCC0633_01.049 Main output file created by BLT 2144
CCC0633_01.050 User's Guide for BLTPLOT (WordPerfect doc) 0
CCC0633_01.051 List of subroutines in BLTPLOT 59
CCC0633_01.052 NEA-DB executable of program BLT 0
CCC0633_01.053 NEA-DB executable of program GRAFBLT 0
CCC0633_01.054 NEA-DB executable of program FEMWATER 0
CCC0633_01.055 NEA-DB executable of program REDIMGRD 0
CCC0633_01.056 Auxiliary file for BLT, generated by FEMWATE 293
CCC0633_01.057 Auxiliary file for BLT, generated by FEMWATE 596
CCC0633_01.058 Output file for BLTTest, generated at NEA-DB 2140
CCC0633_01.059 Output file for INPR7A , generated at NEA-DB 2300
CCC0633_01.060 Output file for INPR7FD, generated at NEA-DB 3700
CCC0633_01.061 Output file for TESTKD , generated at NEA-DB 2522
CCC0633_01.062 Rstart file for BLTTEST, generated at NEA-DB 1853
CCC0633_01.063 Rstart file for INPR7A , generated at NEA-DB 635
CCC0633_01.064 Rstart file for INPR7FD, generated at NEA-DB 635
CCC0633_01.065 Rstart file for TESTKD , generated at NEA-DB 1090
CCC0633_01.066 Leach release rate for INPR7A (NEA-DB gen.) 375
CCC0633_01.067 Leach mass release for INPR7A (NEA-DB gen.) 375
CCC0633_01.068 Leach release rate for INPR7FD(NEA-DB gen.) 375
CCC0633_01.069 Leach mass release for INPR7FD(NEA-DB gen.) 375
CCC0633_01.070 Concentration traces from INPR7A (NEA-DB) 81
CCC0633_01.071 Concentration traces from INPR7FD(NEA-DB) 81
CCC0633_01.072 Sample output file produced by FEMWATER 1730
CCC0633_01.073 Aux. sample output file produced by FEMWATER 1196
CCC0633_01.074 DOS file-names 73
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17. CATEGORIES
  • G. Radiological Safety, Hazard and Accident Analysis
  • R. Environmental and Earth Sciences

Keywords: advection, containers, ground water, radioactive release, radioactive waste storage, radioactivity transport, radionuclide migration.