RichardsSeff1VGcut.h File Reference

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Classes
class	RichardsSeff1VGcut
	Effective saturation as a function of porepressure using the van Genuchten formula, but when p<p_cut use a linear instead, seff = a + b*p, which matches value and derivative at p=p_cut This is so seff=0 at a finite value of p rather than p=-infinity. More...

Functions
template<>
InputParameters	validParams< RichardsSeff1VGcut > ()

Function Documentation

validParams< RichardsSeff1VGcut >()

template<>

InputParameters validParams< RichardsSeff1VGcut >

(

)

Definition at line 18 of file RichardsSeff1VGcut.C.

{
  InputParameters params = validParams<RichardsSeff1VG>();
  params.addRequiredRangeCheckedParam<Real>(
      "p_cut",
      "p_cut < 0",
      "cutoff in pressure.  Must be negative.  If p>p_cut then use "
      "van-Genuchten function.  Otherwise use a linear relationship which is "
      "chosen so the value and derivative match van-Genuchten at p=p_cut");
  params.addClassDescription("cut van-Genuchten effective saturation as a function of capillary "
                             "pressure.  Single-phase  seff = (1 + (-al*p)^(1/(1-m)))^(-m) for "
                             "p>p_cut, otherwise user a a linear relationship that is chosen so "
                             "the value and derivative match van-Genuchten at p=p_cut.");
  return params;
}