Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media

Ababou, R

doi:10.2172/138205

Title: Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media

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Abstract

This report develops a broad review and assessment of quantitative modeling approaches and data requirements for large-scale subsurface flow in radioactive waste geologic repository. The data review includes discussions of controlled field experiments, existing contamination sites, and site-specific hydrogeologic conditions at Yucca Mountain. Local-scale constitutive models for the unsaturated hydrodynamic properties of geologic media are analyzed, with particular emphasis on the effect of structural characteristics of the medium. The report further reviews and analyzes large-scale hydrogeologic spatial variability from aquifer data, unsaturated soil data, and fracture network data gathered from the literature. Finally, various modeling strategies toward large-scale flow simulations are assessed, including direct high-resolution simulation, and coarse-scale simulation based on auxiliary hydrodynamic models such as single equivalent continuum and dual-porosity continuum. The roles of anisotropy, fracturing, and broad-band spatial variability are emphasized. 252 refs.

Authors:: Ababou, R

Publication Date:: Thu Aug 01 00:00:00 EDT 1991

Research Org.:: Nuclear Regulatory Commission, Washington, DC (United States); US Nuclear Regulatory Commission (NRC), Washington, DC (United States). Div. of Engineering

Sponsoring Org.:: Nuclear Regulatory Commission, Washington, DC (United States)

OSTI Identifier:: 138205

Report Number(s):: NUREG/CR-5743
ON: TI91018689; TRN: 91:027734

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: Aug 1991

Country of Publication:: United States

Language:: English

Subject:: 05 NUCLEAR FUELS; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; YUCCA MOUNTAIN; RADIOACTIVE WASTE DISPOSAL; SURFACE CONTAMINATION; SPATIAL DISTRIBUTION; ALPHA-BEARING WASTES; GEOLOGIC FORMATIONS; WATER SATURATION; RETENTION; GROUND WATER; STOCHASTIC PROCESSES; HYDRODYNAMIC MODEL; FLUID-STRUCTURE INTERACTIONS; DUAL ABSORPTION MODEL; DARCY LAW; POROSITY; HYDRAULIC CONDUCTIVITY; GEOLOGIC FRACTURES; HYDRAULIC FRACTURES; RADIONUCLIDE MIGRATION; RANDOMNESS; COMPUTERIZED SIMULATION; NUMERICAL ANALYSIS; FLOW MODELS; SOIL MECHANICS; AQUIFERS; ANISOTROPY; DATA ANALYSIS; REGULATIONS; HIGH-LEVEL RADIOACTIVE WASTES; GEOLOGIC SURVEYS; STRATIGRAPHY; SUBSURFACE STRUCTURES; Yucca Mountain Project

Citation Formats


                    Ababou, R. Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media.  United States: N. p., 1991. 
        Web.  doi:10.2172/138205.

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                    Ababou, R. Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media.  United States.  https://doi.org/10.2172/138205

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                    Ababou, R. 1991.  
        "Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media".  United States.  https://doi.org/10.2172/138205.  https://www.osti.gov/servlets/purl/138205.

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@article{osti_138205,

  title        = {Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media},

  author       = {Ababou, R},

  abstractNote = {This report develops a broad review and assessment of quantitative modeling approaches and data requirements for large-scale subsurface flow in radioactive waste geologic repository. The data review includes discussions of controlled field experiments, existing contamination sites, and site-specific hydrogeologic conditions at Yucca Mountain. Local-scale constitutive models for the unsaturated hydrodynamic properties of geologic media are analyzed, with particular emphasis on the effect of structural characteristics of the medium. The report further reviews and analyzes large-scale hydrogeologic spatial variability from aquifer data, unsaturated soil data, and fracture network data gathered from the literature. Finally, various modeling strategies toward large-scale flow simulations are assessed, including direct high-resolution simulation, and coarse-scale simulation based on auxiliary hydrodynamic models such as single equivalent continuum and dual-porosity continuum. The roles of anisotropy, fracturing, and broad-band spatial variability are emphasized. 252 refs.},

  doi          = {10.2172/138205},

  url          = {https://www.osti.gov/biblio/138205},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Aug 01 00:00:00 EDT 1991},

  month        = {Thu Aug 01 00:00:00 EDT 1991}

}

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