# 7.6.15.15.1. Air_Water

Syntax

  Porous Flow System [{of} SpeciesName] = Air_Water [Gx = gx | Gy = gy | Gz = gz | Relative_To = relative_to | Inverse_Compressibility_Factor = inverse_compressibility_factor | Water_Gas_Constant = water_gas_constant]

Scope

  Aria Material

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
gx | real | 0
gy | real | 0
gz | real | 0
relative_to | “string” | –
inverse_compressibility_factor | real | 2.17e+06
water_gas_constant | real | 461.5