# 7.6.20.6.4. Darcy_Solvent

Syntax

  Velocity [{of} SpeciesName] = Darcy_Solvent ([Gx = gx] | [Gy = gy] | [Gz = gz] | [Relative_To = relative_to])

Scope

  Aria Material

Summary

  This model is intended for problems where the porous species equation is being solved for pressure with a solvent species concentration as the mass term in order to solve for the velocity of that solvent species.

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
gx | real | 0
gy | real | 0
gz | real | 0
relative_to | “string” | –