Analysis of solute transport in an intermediate-scale unsaturated flow experiment

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Radioactive waste disposal in the unsaturated zone and its subsequent migration and decay calls for prediction with the aid of transport models. Usually, such models consist of a system of partial differential equations for the concentration C (function of space and time) that has to be solved with appropriate initial and boundary conditions. These equations are based on physical first principles, but contain a number of parameters that have to be determined experimentally. Hence, experiments are crucial for validating the equations and their solution and for determining parameter values. The Los Alamos National Laboratory (LANL) has initiated and performed a ... continued below

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8 p.

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Dagan, G.; Springer, E. & Nguyen, V. October 1, 1990.

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Description

Radioactive waste disposal in the unsaturated zone and its subsequent migration and decay calls for prediction with the aid of transport models. Usually, such models consist of a system of partial differential equations for the concentration C (function of space and time) that has to be solved with appropriate initial and boundary conditions. These equations are based on physical first principles, but contain a number of parameters that have to be determined experimentally. Hence, experiments are crucial for validating the equations and their solution and for determining parameter values. The Los Alamos National Laboratory (LANL) has initiated and performed a series of experiments at an intermediate scale, in caissons much larger than laboratory columns, of depth comparable with natural soil, but of limited horizontal extent. These experiments were conducted with both nonreactive and reactive solutes, and are described in a series of reports. Their main advantage is in expanding the scale on one hand, while permitting careful control and measurements on the other. 8 refs., 2 figs.

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8 p.

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OSTI as DE91000443

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  • 2. annual American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (United States), 28 Apr - 3 May 1991

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  • Other: DE91000443
  • Report No.: LA-UR--90-2970
  • Report No.: CONF-910435--12
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 137998
  • Archival Resource Key: ark:/67531/metadc619678

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  • October 1, 1990

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 29, 2016, 1:06 p.m.

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Dagan, G.; Springer, E. & Nguyen, V. Analysis of solute transport in an intermediate-scale unsaturated flow experiment, article, October 1, 1990; New Mexico. (digital.library.unt.edu/ark:/67531/metadc619678/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.