# 7.6.16.9.4. Gas_Phase_Distributed

Syntax

  Retardation [{of} SpeciesName] = Gas_Phase_Distributed ()

Scope

  Aria Material

Summary

  Distributed retardation factor for gas phase in porous flow. The corresponding distribution coefficient should be defined with a DISTRIBUTION COEFFICIENT model.

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