# 7.16.1.29. Van_Genuchten_Bc

Syntax

  Ic For DofName ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {@ | at | for | on | over} MeshExtent = Van_Genuchten_Bc Wetting_Saturation_Expression_Name = wetting_saturation_expression_name

Summary

  A Van Genuchten model for air/water capillary pressure based on an arbitrary function for wetting phase saturation

Parameter | Value | Default
--- | --- | ---
DofName | string | –
{of} | {of | species | subindex} | –
SpeciesName | string | –
{in} | {in | material_phase} | –
MaterialPhaseName | string | –
{ls} | {levelset_phase | ls} | –
MeshExtent | string | –
wetting_saturation_expression_name | “string” | –