Upscaling particle transport in discrete fracture networks: 1. Nonreactive tracers
2007 (English)In: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 43, no 10, W10428- p.Article in journal (Refereed) Published
We study tracer transport through discrete fracture networks and develop a methodology for upscaling particle breakthrough curves on the basis of fracture segment data. Our prime interest is to model the early arrival and peak of tracer breakthrough curves, i.e., to capture the bulk of the tracer mass arrival. This study is based on two-dimensional discrete fracture network simulations, combined with a truncated one-sided stable distribution as a model for upscaling particle transitions. Results indicate that this model can accurately capture the bulk mass and peak of the breakthrough distributions for an upscaled distance of at least 1 order of magnitude in terms of transport scale, which for our simulations is about 2 orders of magnitude greater than the mean fracture segment scale. We also introduce an accurate mapping algorithm for transforming Eulerian into Lagrangian flow statistics, without a priori knowledge of network connectivity.
Place, publisher, year, edition, pages
2007. Vol. 43, no 10, W10428- p.
NONLOCAL REACTIVE TRANSPORT, POROUS-MEDIA, CHEMICAL HETEROGENEITY;, ANOMALOUS TRANSPORT, MULTIPLE FAMILIES, CRYSTALLINE ROCK, MASS-TRANSPORT, FLOW, DISPERSION, MODEL
Oceanography, Hydrology, Water Resources Other Environmental Engineering
IdentifiersURN: urn:nbn:se:kth:diva-11967DOI: 10.1029/2006WR005334ISI: 000250525500001ScopusID: 2-s2.0-36749058309OAI: oai:DiVA.org:kth-11967DiVA: diva2:291511
QC 201010052010-02-022010-02-022010-10-05Bibliographically approved