Using TOUGH2 to model capillary barriers

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Ross (1990) developed an analytical relationship to calculate the diversion length of a tilted fine-over-coarse capillary barrier. Oldenburg and Pruess compared TOUGH2 simulation results to the diversion length predicted by Ross` formula using upstream and harmonic weighting. The results were mixed. The qualitative agreement is reasonable but the quantitative comparison is poor, especially for upstream weighting. The proximity of the water table to the fine-coarse interface at breakthrough has been proposed as a possible reason for the poor agreement. In the present study, the Oldenburg and Pruess problem is extended to address the water table issue. When the water table ... continued below

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6 p.

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Webb, S.W. September 1, 1998.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Ross (1990) developed an analytical relationship to calculate the diversion length of a tilted fine-over-coarse capillary barrier. Oldenburg and Pruess compared TOUGH2 simulation results to the diversion length predicted by Ross` formula using upstream and harmonic weighting. The results were mixed. The qualitative agreement is reasonable but the quantitative comparison is poor, especially for upstream weighting. The proximity of the water table to the fine-coarse interface at breakthrough has been proposed as a possible reason for the poor agreement. In the present study, the Oldenburg and Pruess problem is extended to address the water table issue. When the water table is sufficiently far away from the interface at breakthrough, good qualitative and quantitative agreement is obtained using upstream weighting.

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6 p.

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OSTI as DE98006231

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  • TOUGH `98 workshop, Berkeley, CA (United States), 4-6 May 1998

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  • Other: DE98006231
  • Report No.: SAND--98-1929C
  • Report No.: CONF-980559--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 639808
  • Archival Resource Key: ark:/67531/metadc690244

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Office of Scientific & Technical Information Technical Reports

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  • September 1, 1998

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • May 5, 2016, 8:38 p.m.

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Webb, S.W. Using TOUGH2 to model capillary barriers, article, September 1, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc690244/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.