Analytical models for C-14 transport in a partially saturated, fractured, porous media

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Description

Interaction between fractures and rock matrix is considered in developing a criterion for treating fractured rock as a porous medium for the purpose of transport calculations. The value of a modified Peclet number determines the suitability of the equivalent porous medium approach. Using a porous medium mode, underground concentrations of {sup 14}CO{sub 2} are predicted for the proposed nuclear waste repository at Yucca Mountain, Nevada. Maximum concentrations near the ground surface are comparable to the USNRC limit for unrestricted areas; travel times are predicted to be hundreds to thousands of years for the assumed parameter values. 8 refs., 7 figs.

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9 p.

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Light, W. B.; Pigford, T. H.; Chambre, P. L. & Lee, W. W.-L. February 1, 1989.

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Description

Interaction between fractures and rock matrix is considered in developing a criterion for treating fractured rock as a porous medium for the purpose of transport calculations. The value of a modified Peclet number determines the suitability of the equivalent porous medium approach. Using a porous medium mode, underground concentrations of {sup 14}CO{sub 2} are predicted for the proposed nuclear waste repository at Yucca Mountain, Nevada. Maximum concentrations near the ground surface are comparable to the USNRC limit for unrestricted areas; travel times are predicted to be hundreds to thousands of years for the assumed parameter values. 8 refs., 7 figs.

Physical Description

9 p.

Notes

INIS; OSTI as DE90003079

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  • Nuclear waste isolation in the unsaturated zone: FOCUS `89, Las Vegas, NV (United States), 18-21 Sep 1989

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  • Other: DE90003079
  • Report No.: LBL--26827
  • Report No.: CONF-890928--16
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 137555
  • Archival Resource Key: ark:/67531/metadc625926

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Office of Scientific & Technical Information Technical Reports

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  • February 1, 1989

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 20, 2017, 12:36 p.m.

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Light, W. B.; Pigford, T. H.; Chambre, P. L. & Lee, W. W.-L. Analytical models for C-14 transport in a partially saturated, fractured, porous media, article, February 1, 1989; California. (digital.library.unt.edu/ark:/67531/metadc625926/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.