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Van Genuchten - Mualem model

The input line for the van Genuchten-Mualem model takes the following form:

*Relative permeability = van Genuchten 
k^w_min, k^a_min,  n

The material parameters are given in the following:

  • \(k^{\beta}_{min}\) is the minimum relative permeability of pore water (\(\beta = w\)) and pore air (\(\beta = a\)), respectively.
  • \(n\) is the van Genuchten parameter, see the hydraulic model.