Specifications for the development of a fully three-dimensional numerical groundwater model for regional mass transport of radionuclides from a deep waste repository
Specifications are given which are necessary to develop a three-dimensional numerical model capable of simulating regional mass transport of radionuclides from a deep waste repository. The model to be developed will include all of the significant mass transport processes including flow, chemical, and thermal advection, mechanical dispersion, molecular diffusion, ion exchange reactions, and radioactive decay. The model specifications also include that density and viscosity fluid properties be functions of pressure, temperature, and concentration and take into account fluid and geologic heterogenieties by allowing possible assignment of individual values to every block of the model. The model specifications furthermore include the repository shape, input/output information, boundary conditions, and the need for documentation and a user's manual. Model code validation can be accomplished with the included known analytical or laboratory solutions. It is recommended that an existing finite-difference model (developed by INTERCOMP and INTERA, Inc.) be used as a starting point either as an acceptable basic code for modification or as a pattern for the development of a completely different numerical scheme. A ten-step plan is given to outline the general procedure for development of the code.
- Research Organization:
- Camp Dresser and McKee, Inc., Champaign, IL (USA). Water Resources Div.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5356484
- Report Number(s):
- UCRL-15249
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
520301 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- Water-- (1987)
54 ENVIRONMENTAL SCIENCES
ADVECTION
CHEMICAL REACTIONS
COMPUTER CODES
DECAY
DENSITY
DIFFUSION
DISPERSIONS
ENVIRONMENTAL TRANSPORT
FINITE DIFFERENCE METHOD
FLUID FLOW
GEOLOGIC DEPOSITS
GROUND WATER
HYDROGEN COMPOUNDS
ION EXCHANGE
ITERATIVE METHODS
MASS TRANSFER
MATHEMATICAL MODELS
NUMERICAL SOLUTION
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RADIONUCLIDE MIGRATION
REGIONAL ANALYSIS
SPECIFICATIONS
TEMPERATURE EFFECTS
THREE-DIMENSIONAL CALCULATIONS
VISCOSITY
WATER