We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Advective transport in heterogeneous aquifers: Are proxy models predictive?
- Authors
Fiori, A.; Zarlenga, A.; Gotovac, H.; Jankovic, I.; Volpi, E.; Cvetkovic, V.; Dagan, G.
- Abstract
We examine the prediction capability of two approximate models (Multi-Rate Mass Transfer (MRMT) and Continuous Time Random Walk (CTRW)) of non-Fickian transport, by comparison with accurate 2-D and 3-D numerical simulations. Both nonlocal in time approaches circumvent the need to solve the flow and transport equations by using proxy models to advection, providing the breakthrough curves (BTC) at control planes at any x, depending on a vector of five unknown parameters. Although underlain by different mechanisms, the two models have an identical structure in the Laplace Transform domain and have the Markovian property of independent transitions. We show that also the numerical BTCs enjoy the Markovian property. Following the procedure recommended in the literature, along a practitioner perspective, we first calibrate the parameters values by a best fit with the numerical BTC at a control plane at x1, close to the injection plane, and subsequently use it for prediction at further control planes for a few values of
- Subjects
AQUIFERS; ADVECTION; MASS transfer; CONTINUOUS time systems; COMPUTER simulation; LAPLACE transformation
- Publication
Water Resources Research, 2015, Vol 51, Issue 12, p9577
- ISSN
0043-1397
- Publication type
Article
- DOI
10.1002/2015WR017118