van Genuchten model model: wetting phase

$k{rel}= \sqrt{S_e} (1-(1-S_e^{1/m})^m)^2)$

with

$S_e=\frac{S-S_r}{S_{\mbox{max}}-S_r}$

where

$\begin{eqnarray*} &S_r& \mbox{ residual saturation,}\\ &S_{\mbox{max}}& \mbox{ maximum saturation,}\\ &m(<=1) & \mbox{ exponent.}\\ \end{eqnarray*}$

Note:

$m=1/(1-n)$

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Child parameters, attributes and cases

Additional info

No additional info.

Used in no end-to-end test cases.