User`s manual for the FEHM application -- A finite-element heat- and mass-transfer code

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The use of this code is applicable to natural-state studies of geothermal systems and groundwater flow. A primary use of the FEHM application will be to assist in the understanding of flow fields and mass transport in the saturated and unsaturated zones below the proposed Yucca Mountain nuclear waste repository in Nevada. The equations of heat and mass transfer for multiphase flow in porous and permeable media are solved in the FEHM application by using the finite-element method. The permeability and porosity of the medium are allowed to depend on pressure and temperature. The code also has provisions for movable ... continued below

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153 p.

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Zyvoloski, G.A.; Robinson, B.A.; Dash, Z.V. & Trease, L.L. July 1, 1997.

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Description

The use of this code is applicable to natural-state studies of geothermal systems and groundwater flow. A primary use of the FEHM application will be to assist in the understanding of flow fields and mass transport in the saturated and unsaturated zones below the proposed Yucca Mountain nuclear waste repository in Nevada. The equations of heat and mass transfer for multiphase flow in porous and permeable media are solved in the FEHM application by using the finite-element method. The permeability and porosity of the medium are allowed to depend on pressure and temperature. The code also has provisions for movable air and water phases and noncoupled tracers; that is, tracer solutions that do not affect the heat- and mass-transfer solutions. The tracers can be passive or reactive. The code can simulate two-dimensional, two-dimensional radial, or three-dimensional geometries. In fact, FEHM is capable of describing flow that is dominated in many areas by fracture and fault flow, including the inherently three-dimensional flow that results from permeation to and from faults and fractures. The code can handle coupled heat and mass-transfer effects, such as boiling, dryout, and condensation that can occur in the near-field region surrounding the potential repository and the natural convection that occurs through Yucca Mountain due to seasonal temperature changes. This report outlines the uses and capabilities of the FEHM application, initialization of code variables, restart procedures, and error processing. The report describes all the data files, the input data, including individual input records or parameters, and the various output files. The system interface is described, including the software environment and installation instructions.

Physical Description

153 p.

Notes

INIS; OSTI as DE98003063

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  • Other Information: PBD: Jul 1997

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  • Other: DE98003063
  • Report No.: LA--13306-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/569043 | External Link
  • Office of Scientific & Technical Information Report Number: 569043
  • Archival Resource Key: ark:/67531/metadc697931

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Creation Date

  • July 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • May 18, 2016, 5:57 p.m.

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Zyvoloski, G.A.; Robinson, B.A.; Dash, Z.V. & Trease, L.L. User`s manual for the FEHM application -- A finite-element heat- and mass-transfer code, report, July 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc697931/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.