Theory and implementation for SWIFT II. The Sandia waste-isolation flow and transport model for fractured media. Release 4. 84

Technical Report · Fri Aug 01 04:00:00 EDT 1986

OSTI ID:5161008

Reeves, M; Ward, D S; Johns, N D; Cranwell, R M

This report is one of two that describe the three-dimensional finite-difference code SWIFT II. This code is used to simulate flow and transport processes in geologic media that may be fractured and was developed for use in the analysis of deep geologic nuclear waste-disposal facilities. However, it may be used in other areas such as waste injection into saline aquifers and heat storage in aquifers. Both dual-porosity and discrete-fracture conceptualizations may be considered for the fractured zones. In order to maximize computer efficiency, only one-dimensional migration is permitted within the rock matrix. Otherwise, the treatment of the matrix is general and entirely consistent with the treatment of the fracture and single-porosity zones. A variable density is included throughout, and a variety of options are available to facilitate the various uses of the code. This document presents the theory and formulation of the SWIFT II code. It is intended to be a comprehensive statement of the mathematical, numerical, and computer implementation of the code. A companion document, Data Input Guide for SWIFT II (NUREG/CR-3162), gives the input data guide.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5161008
• Report Number(s): NUREG/CR-3328; SAND-83-1159; ON: TI87001385
• Country of Publication: United States
• Language: English

Related Subjects

052002 -- Nuclear Fuels-- Waste Disposal & Storage
053000* -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580100 -- Geology & Hydrology-- (-1989)
BRINES
COMPUTER CODES
DIFFUSION
ENERGY TRANSFER
ENVIRONMENTAL TRANSPORT
FLOW MODELS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GROUND WATER
HEAT TRANSFER
HYDROGEN COMPOUNDS
MANAGEMENT
MASS TRANSFER
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
POROSITY
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
S CODES
WASTE DISPOSAL
WASTE MANAGEMENT
WATER