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+Advection with constant velocity is here added to conduction and phase change. Analytical solution are proposed from Kurylyk et al. 2014 paper based on a reassessment of solutions by Lunardini. Although not physically realistic (constant velocity) these solutions can be used for benchmarking purposes: "Lack of fidelity to physical processes does not limit ability to serve as benchmark".
+The paper Kurylyk et al. 2014 describes at depth the analytical solutions available, the suggested benchmark cases and SUTRA code runs to compare with these solutions. The recommanded benchmark 2 and 3 are included in the InterFrost project as TH1 cases (differing by flow velocities). The recommanded benchmark 1 (Neuman case) is an option to complement the Lunardini case provided as T1.
+One may refer to "Analytical solutions for benchmarking cold regions subsurface water flow and energy transport models: One-dimensional soil thaw with conduction and advection" by B. Kurylyk, J. McKenzie, K. MacQuarrie, C. Voss in Advances in Water Resources 70 (2014) 172–184
+Another source is the presentation by Barret Kurylyk of these items for the kick off meeting ({{:test_cases:kurylyk-interfrost-th1_benchmark_design.pdf|Kurylyk}}).
+Initial and boundary conditions:
+{{ :test_cases:conditions.jpg?400 |}}
+Parameter set:
+{{ :test_cases:parametersth1.jpg?1000 |}}
+The analytical solutions of Kurylyk et al 2014 are contained in this {{:test_cases:mmc1.xlsx|file}}.
+The approach used for SUTRA code is summed up in two figures as a source of inspiration. They provide the domain simulated and the approach for the freezing curve function in order to approximate the step function with a linear curve:
+{{ :test_cases:figkurylyk.jpg?300 |}} {{ :test_cases:freezingcurvesutra.jpg?400 |}}