A. F. B. Tompson

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The random-walk method for simulating solute transport in porous media is typically based on the assumption that the velocity and velocity-dependent dispersion tensor vary smoothly in space. However, in cases where sharp interfaces separate materials with contrasting hydraulic properties, these quantities may be discontinuous. Normally, velocities are(More)
Highly-resolved simulations of groundwater ow, chemical migration , and contaminant recovery processes are used to test the applicability of stochastic models of ow and transport in a typical eld setting. A simulation domain encompassing a portion of the upper saturated aquifer materials beneath the Lawrence Livermore National Laboratory was developed to(More)
  • A F B Tompson, N D Rosenberg, W J Bosl, R D Falgout, S G Smith, D E Shumaker +8 others
  • 1997
nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or(More)
The nuclear weapons testing programme of the USA has released radionuclides to the subsurface at the Nevada Test Site. One of these tests has been used to study the hydrological transport of radionuclides for over 25 years in groundwater and the deep unsaturated zone. Ten years after the weapon's test, a 16 year groundwater pumping experiment was initiated(More)
1. Abstract "Particle models" is a generic term used for a broad class of simulation models in which the discrete representation of physical phenomena involves the use of interacting particles. Since this technique was first applied by Ahlstrom et al. (1977) to numerical studies of groundwater hydrology, many other researchers have used it with success.(More)
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