HR: 1340h
AN: H33D-1606    [Abstracts]
TI: Pressure and Concentration Profiles in Lab-Scale Heterogeneous Porous Media
AU: * Sternberg, S
EM: ssternbe@d.umn.edu
AF: University Minnesota Duluth, 1303 Ordean Building, Duluth, MN 55812-3025, United States
AB: Experimental observations in lab-scale heterogeneous porous media are compared with MODFLOW simulations. Pressure and concentration profiles are measured experimentally in a square sandbox filled with glass beads. Heterogeneity is included by replacing one-quarter of the space, in either a corner or center, with a layer of contrasting bead sizes. Pressure is measured with open manometer tubes. Concentration of a chloride tracer is measured electrochemically with silver/ silver chloride electrodes buried in the system. Results show good agreement between numerical simulations and pressure observations, but less agreement for concentration profiles. It is speculated that the rules for mixing at flow transitions are not well described in MODFLOW.
DE: 1829 Groundwater hydrology
DE: 1832 Groundwater transport
SC: Hydrology [H]
MN: 2007 Fall Meeting