Upscaling particle transport in discrete fracture networks: 2. Reactive tracers
2007 (English)In: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 43, no 10, W10429- p.Article in journal (Refereed) Published
We study sorbing tracer transport through discrete fracture networks using astochastic Lagrangian framework, combined with the methodology for upscalingparticle breakthrough curves developed in the first part of this article series.Results indicate that this procedure can accurately predict expected normalizedtracer discharge for an upscaled distance of 1 order of magnitude in terms oftransport scale, which for our simulations is about 2 orders of magnitudegreater than the mean fracture segment scale. Specifically, we show theimportance of retaining the correlation between the water residence time τ andthe hydrodynamic control of retention β in order to make accurate tracerdischarge predictions. Also, we show that the extreme tails of τ and β distributions have essentially no impact on tracer discharge. These results areillustrated using the unlimited diffusion model, and for two hypotheticaltracers with properties designed to capture the behavior of many commonlyoccurring natural radionuclides.
Place, publisher, year, edition, pages
American Geophysical Union , 2007. Vol. 43, no 10, W10429- p.
Stochastic transport, Upscaling, Retention, Fractured media
Oceanography, Hydrology, Water Resources Other Environmental Engineering
IdentifiersURN: urn:nbn:se:kth:diva-11969DOI: 10.1029/2006WR005336ISI: 000250525500002OAI: oai:DiVA.org:kth-11969DiVA: diva2:291679
QC 201010052010-02-022010-02-022010-10-05Bibliographically approved