Sorbing tracer experiments in a crystalline rock fracture at Aspo (Sweden): 3. Effect of microscale heterogeneity
2008 (English)In: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 44, no 12Article in journal (Refereed) Published
We study the impact of microscale (10(-3) -10(-2) m) heterogeneity in material and structural properties on sorbing tracer transport in a single crystalline fracture of the TRUE-1 tests (mesoscale, 5 m) at Aspo (Sweden). The analysis is based on the microscale characterization results as presented in part 1 of this series. Our main objective in this last part of the series is to provide an independent interpretation (or "prediction'') of the effective parameters as estimated from calibration in part 2 by combining the data presented in part 1 with analytical and numerical transport modeling. We show here that the independent information from microscopic characterization can be used for "predicting'' the effective diffusion time t(d) reasonably well; a discrepancy is to be expected given the uncertainties of microscale retention properties, in particular of the sorption coefficient.
Place, publisher, year, edition, pages
2008. Vol. 44, no 12
solute transport, diffusion, matrix, tests
IdentifiersURN: urn:nbn:se:kth:diva-18080DOI: 10.1029/2007wr006797ISI: 000262176300002ScopusID: 2-s2.0-59649109755OAI: oai:DiVA.org:kth-18080DiVA: diva2:336126
QC 201005252010-08-052010-08-05Bibliographically approved