Users guide for MAGNUM-3D: a three-dimensional groundwater flow numerical model

Technical Report · Fri Mar 01 04:00:00 EST 1985

OSTI ID:5630694

Estey, S A; Arnett, R C; Aichele, D R

This document is a guide for using the three-dimensional finite-element groundwater flow code, MAGNUM-3D. This code was developed by the Basalt Waste Isolation Project operated by Rockwell Hanford Operations, to support the mission of evaluating the feasibility of locating a deep geologic repository in basalt for the storage of high-level nuclear waste. The principal use of the MAGNUM-3D code is in conducting local- and regional-scale groundwater flow modeling studies. This document briefly discusses the theory of the finite-element method and the structure of the code. The code options and input data are discussed in detail. Separate sections describe the model input for steady-state and transient runs and present sample problems for each. The MAGNUM-3D code may be used to model complex hydrologic systems. Quadratic elements allow the user to model irregular boundaries and structures in detail. Layer pinch-outs can be modeled using three-dimensional prism elements. A hydrologic system may also be heterogeneous and anisotropic. Stress may be applied to the system in the form of surface recharge due to precipitation or irrigation well discharge. 9 refs., 6 figs.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 5630694
• Report Number(s): RHO-BW-ST-67P; ON: DE85013630
• Country of Publication: United States
• Language: English

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BASALT
COMPUTER CODES
COMPUTERIZED SIMULATION
DOCUMENT TYPES
DOCUMENTATION
ENVIRONMENTAL TRANSPORT
FINITE ELEMENT METHOD
FLOW MODELS
FLUID FLOW
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
HYDROLOGY
IGNEOUS ROCKS
M CODES
MANAGEMENT
MANUALS
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
ROCKS
SIMULATION
THREE-DIMENSIONAL CALCULATIONS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER