https://doi.org/10.1051/epjap/2012120199
Nuclear magnetic resonance measurement of hydrodynamic dispersion in porous media: preasymptotic dynamics, structure and nonequilibrium statistical mechanics
1
Department of Mechanical and Industrial Engineering, Montana State University, MT 59717 Bozeman, USA
2
Center for Biofilm Engineering, Montana State University, MT 59717 Bozeman, USA
3
Department of Chemical and Biological Engineering, Montana State University, MT 59717 Bozeman, USA
a e-mail: jseymour@coe.montana.edu
Received:
24
May
2012
Revised:
15
August
2012
Accepted:
30
August
2012
Published online:
23
October
2012
Measurement of displacement time and length scale dependent dynamics by pulsed gradient spin echo nuclear magnetic resonance in porous media directly provides the preasymptotic hydrodynamic dispersion coefficient. This allows for comparison with nonequilibrium statistical mechanics models of hydrodynamics dispersion in porous media. Preasymptotic dispersion data and models provide characterization of porous media structure length scales relevant to transport and are related to the permeability and sample heterogeneity.
© EDP Sciences, 2012
