FEHMN 1.0: Finite element heat and mass transfer code

Technical Report · Mon Apr 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/138080· OSTI ID:138080

Zyvoloski, G; Dash, Z; Kelkar, S

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. (LANL), Los Alamos, 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
• Resource Relation: Other Information: PBD: Apr 1991
• Country of Publication: United States
• Language: English

Related Subjects

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