TY - JOUR
T1 - Groundwater flow and heat transport for systems undergoing freeze-thaw
T2 - Intercomparison of numerical simulators for 2D test cases
AU - Grenier, Christophe
AU - Anbergen, Hauke
AU - Bense, Victor
AU - Chanzy, Quentin
AU - Coon, Ethan
AU - Collier, Nathaniel
AU - Costard, François
AU - Ferry, Michel
AU - Frampton, Andrew
AU - Frederick, Jennifer
AU - Gonçalvès, Julio
AU - Holmén, Johann
AU - Jost, Anne
AU - Kokh, Samuel
AU - Kurylyk, Barret
AU - McKenzie, Jeffrey
AU - Molson, John
AU - Mouche, Emmanuel
AU - Orgogozo, Laurent
AU - Pannetier, Romain
AU - Rivière, Agnès
AU - Roux, Nicolas
AU - Rühaak, Wolfram
AU - Scheidegger, Johanna
AU - Selroos, Jan Olof
AU - Therrien, René
AU - Vidstrand, Patrik
AU - Voss, Clifford
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/4
Y1 - 2018/4
N2 - In high-elevation, boreal and arctic regions, hydrological processes and associated water bodies can be strongly influenced by the distribution of permafrost. Recent field and modeling studies indicate that a fully-coupled multidimensional thermo-hydraulic approach is required to accurately model the evolution of these permafrost-impacted landscapes and groundwater systems. However, the relatively new and complex numerical codes being developed for coupled non-linear freeze-thaw systems require verification. This issue is addressed by means of an intercomparison of thirteen numerical codes for two-dimensional test cases with several performance metrics (PMs). These codes comprise a wide range of numerical approaches, spatial and temporal discretization strategies, and computational efficiencies. Results suggest that the codes provide robust results for the test cases considered and that minor discrepancies are explained by computational precision. However, larger discrepancies are observed for some PMs resulting from differences in the governing equations, discretization issues, or in the freezing curve used by some codes.
AB - In high-elevation, boreal and arctic regions, hydrological processes and associated water bodies can be strongly influenced by the distribution of permafrost. Recent field and modeling studies indicate that a fully-coupled multidimensional thermo-hydraulic approach is required to accurately model the evolution of these permafrost-impacted landscapes and groundwater systems. However, the relatively new and complex numerical codes being developed for coupled non-linear freeze-thaw systems require verification. This issue is addressed by means of an intercomparison of thirteen numerical codes for two-dimensional test cases with several performance metrics (PMs). These codes comprise a wide range of numerical approaches, spatial and temporal discretization strategies, and computational efficiencies. Results suggest that the codes provide robust results for the test cases considered and that minor discrepancies are explained by computational precision. However, larger discrepancies are observed for some PMs resulting from differences in the governing equations, discretization issues, or in the freezing curve used by some codes.
KW - Code benchmarking
KW - Numerical simulation
KW - Permafrost
KW - Sharp interface problems
KW - Thermo-hydrological coupling
UR - http://www.scopus.com/inward/record.url?scp=85042423582&partnerID=8YFLogxK
U2 - 10.1016/j.advwatres.2018.02.001
DO - 10.1016/j.advwatres.2018.02.001
M3 - Article
AN - SCOPUS:85042423582
SN - 0309-1708
VL - 114
SP - 196
EP - 218
JO - Advances in Water Resources
JF - Advances in Water Resources
ER -