Continued development of a semianalytical solution for two-phase fluid and heat flow in a porous medium

Technical Report · Sat Jun 01 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/138331· OSTI ID:138331

Doughty, C; Pruess, K ^[1]

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1. Lawrence Berkeley Lab., CA (United States)

Over the past few years the authors have developed a semianalytical solution for transient two-phase water, air, and heat flow in a porous medium surrounding a constant-strength linear heat source, using a similarity variable {eta} = r/{radical}t. Although the similarity transformation approach requires a simplified geometry, all the complex physical mechanisms involved in coupled two-phase fluid and heat flow can be taken into account in a rigorous way, so that the solution may be applied to a variety of problems of current interest. The work was motivated by adverse to predict the thermohydrological response to the proposed geologic repository for heat-generating high-level nuclear wastes at Yucca Mountain, Nevada, in a partially saturated, highly fractured volcanic formation. The paper describes thermal and hydrologic conditions near the heat source; new features of the model; vapor pressure lowering; and the effective-continuum representation of a fractured/porous medium.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• OSTI ID: 138331
• Report Number(s): LBL-29700; ON: DE92000647; TRN: JT9212%%550
• Resource Relation: Other Information: PBD: Jun 1991; Related Information: Is Part Of Earth Sciences Division annual report 1990; PB: 197 p.
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
POROUS MATERIALS
HEAT FLOW
TWO-PHASE FLOW
YUCCA MOUNTAIN
SITE CHARACTERIZATION
BOUNDARY CONDITIONS
FLOW MODELS
FLUID FLOW
FRACTURED RESERVOIRS
HEAT SOURCES
HIGH-LEVEL RADIOACTIVE WASTES
HYDROLOGY
PHYSICAL PROPERTIES
PROGRESS REPORT
RADIOACTIVE WASTE STORAGE
THERMODYNAMICS
VAPOR PRESSURE
Yucca Mountain Project