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FEHMN 1.0: Finite element heat and mass transfer code

Technical Report ·
DOI:https://doi.org/10.2172/138080· OSTI ID:138080
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A computer code is described which can simulate non-isothermal multiphase multicomponent flow in porous media. It is applicable to natural-state studies of geothermal systems and ground-water flow. The equations of heat and mass transfer for multiphase flow in porous and permeable media are solved 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. A summary of the equations in the model and the numerical solution procedure are provided in this report. A user`s guide and sample problems are also included. The main use of FEHMN will be to assist in the understanding of flow fields in the saturated zone below the proposed Yucca Mountain Repository. 33 refs., 27 figs., 12 tabs.

Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
138080
Report Number(s):
LA--12062-MS; ON: DE91011347
Country of Publication:
United States
Language:
English

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Related Subjects

05 NUCLEAR FUELS
15 GEOTHERMAL ENERGY
58 GEOSCIENCES
99 GENERAL AND MISCELLANEOUS
AIR FLOW
BOUNDARY CONDITIONS
COMPUTERIZED SIMULATION
EQUATIONS
F CODES
FINITE ELEMENT METHOD
FLOW MODELS
FLUID FLOW
GEOTHERMAL FLUIDS
GROUND WATER
Geothermal Legacy
HEAT TRANSFER
MANUALS
MASS TRANSFER
MULTIPHASE FLOW
NUMERICAL SOLUTION
PERMEABILITY
POROSITY
POROUS MATERIALS
PRESSURE DEPENDENCE
RADIOACTIVE WASTE FACILITIES
RESERVOIR ROCK
SITE CHARACTERIZATION
TEMPERATURE DEPENDENCE
THREE-DIMENSIONAL CALCULATIONS
TRACER TECHNIQUES
TWO-DIMENSIONAL CALCULATIONS
YUCCA MOUNTAIN
Yucca Mountain Project