MAGNUM-2D computer code: user's guide

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Description

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 ... continued below

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England, R.L.; Kline, N.W.; Ekblad, K.J. & Baca, R.G. January 1, 1985.

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Description

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.

Notes

NTIS, PC A09/MF A01; 1.

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  • Other: DE85013315
  • Report No.: RHO-BW-CR-143P
  • Grant Number: AC06-77RL01030
  • DOI: 10.2172/5807858 | External Link
  • Office of Scientific & Technical Information Report Number: 5807858
  • Archival Resource Key: ark:/67531/metadc1099019

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Creation Date

  • January 1, 1985

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • March 20, 2018, 5:26 p.m.

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England, R.L.; Kline, N.W.; Ekblad, K.J. & Baca, R.G. MAGNUM-2D computer code: user's guide, report, January 1, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc1099019/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.