# 7.6.3.1.16. Van_Genuchten_Bc

Syntax

  Capillary Pressure [{of} SpeciesName] = Van_Genuchten_Bc Wetting_Saturation_Expression_Name = wetting_saturation_expression_name

Scope

  Aria Material

Summary

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

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
wetting_saturation_expression_name | “string” | –