Actions for Strongly coupled single-phase flow problems [electronic resource] : Effects of density variation, hydrodynamic dispersion, and first order decay

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Strongly coupled single-phase flow problems [electronic resource] : Effects of density variation, hydrodynamic dispersion, and first order decay

Published
Washington, D.C. : United States. Dept. of Energy, 1995.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
9 pages : digital, PDF file
Additional Creators
Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We have developed TOUGH2 modules for strongly coupled flow and transport that include full hydrodynamic dispersion. T2DM models two-dimensional flow and transport in systems with variable salinity, while T2DMR includes radionuclide transport with firstorder decay of a parent-daughter chain of radionuclide components in variable salinity systems. T2DM has been applied to a variety of coupled flow problems including the pure solutal convection problem of Elder and the mixed free and forced convection salt-dome flow problem. In the Elder and salt-dome flow problems, density changes of up to 20% caused by brine concentration variations lead to strong coupling between the velocity and brine concentration fields. T2DM efficiently calculates flow and transport for these problems. We have applied T2DMR to the dispersive transport and decay of radionuclide tracers in flow fields with permeability heterogeneities and recirculating flows. Coupling in th ese problems occurs by velocity-dependent hydrodynamic dispersion. Our results show that the maximum daughter species concentration may occur fully within a recirculating or low-velocity region. In all of the problems, we observe very efficient handling of the strongly coupled flow and transport processes.
Report Numbers
E 1.99:lbl--36928
E 1.99: conf-9503110--1
conf-9503110--1
lbl--36928
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/01/1995.
"lbl--36928"
" conf-9503110--1"
"DE95014777"
TOUGH 95: transport of unsaturated ground water and heat workshop, Berkeley, CA (United States), 20-22 Mar 1995.
Pruess, K.; Oldenburg, C.M.
Funding Information
AC03-76SF00098
View MARC record | catkey: 14138051