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

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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 ... continued below

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Medium: P; Size: 159 p.

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Ababou, R. August 1, 1991.

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  • U.S. Nuclear Regulatory Commission
    Publisher Info: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering
    Place of Publication: Washington D.C.

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Description

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.

Physical Description

Medium: P; Size: 159 p.

Notes

INIS; OSTI as TI91018689

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  • Other Information: PBD: Aug 1991

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  • Other: TI91018689
  • Report No.: NUREG/CR--5743
  • DOI: 10.2172/138205 | External Link
  • Office of Scientific & Technical Information Report Number: 138205
  • Archival Resource Key: ark:/67531/metadc623244

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 1, 1991

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 16, 2017, 8:32 p.m.

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Ababou, R. Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media, report, August 1, 1991; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc623244/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.