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Brooks & Corey model

The input line for the Brooks & Corey - Mualem1 model takes the following form:

*Relative permeability = Brooks_Corey 
k^w_min, k^a_min, lambda

The material parameters are given in the following:

  • \(k^{w}_{min}\) and \(k^{w}_{min}\) are the minimum relative permeability for the pore water and pore air phase, respectively.
  • \(\lambda\) is the pore-size distribution index, see the hydraulic model. This dimensionless exponent reflects the uniformity of the pore sizes. A smaller \(\lambda\) value corresponds to a wider range of pore sizes, while a larger value indicates a more uniform pore structure.

  1. Yechezkel Mualem. A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resources Research, 12(3):513–522, 1976. Publisher: American Geophysical Union (AGU). doi:10.1029/wr012i003p00513. ↩