MAGNUM-2D computer code: user's guide

Technical Report · Tue Jan 01 04:00:00 EST 1985

DOI:https://doi.org/10.2172/5807858· OSTI ID:5807858

England, R L; Kline, N W; Ekblad, K J; Baca, R G

Information relevant to the general use of the MAGNUM-2D computer code is presented. This computer code was developed for the purpose of modeling (i.e., simulating) the thermal and hydraulic conditions in the vicinity of a waste package emplaced in a deep geologic repository. The MAGNUM-2D computer computes (1) the temperature field surrounding the waste package as a function of the heat generation rate of the nuclear waste and thermal properties of the basalt and (2) the hydraulic head distribution and associated groundwater flow fields as a function of the temperature gradients and hydraulic properties of the basalt. MAGNUM-2D is a two-dimensional numerical model for transient or steady-state analysis of coupled heat transfer and groundwater flow in a fractured porous medium. The governing equations consist of a set of coupled, quasi-linear partial differential equations that are solved using a Galerkin finite-element technique. A Newton-Raphson algorithm is embedded in the Galerkin functional to formulate the problem in terms of the incremental changes in the dependent variables. Both triangular and quadrilateral finite elements are used to represent the continuum portions of the spatial domain. Line elements may be used to represent discrete conduits. 18 refs., 4 figs., 1 tab.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 5807858
• Report Number(s): RHO-BW-CR-143P; ON: DE85013315
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580100 -- Geology & Hydrology-- (-1989)
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
BASALT
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
DOCUMENT TYPES
ENERGY TRANSFER
FLUID FLOW
FORECASTING
FORTRAN
GROUND WATER
HEAT TRANSFER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
M CODES
MANAGEMENT
MANUALS
MATERIALS
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROGRAMMING LANGUAGES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTES
ROCKS
SIMULATION
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER