# 7.17.1.27.22. Porous_Decomposition

Syntax

  Source For Mass Balance ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {@ | at | for | on | over} MeshPartIdentifier = Porous_Decomposition (E = e | A = a | Rho = rho | Delta_H = delta_h | Coef = coef | Pexp = pexp | R = r | Pref = Pref | Tref = Tref | Type = type)

Summary

  Porous decomposition source for momentum equation

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
{in} | {in | material_phase} | –
MaterialPhaseName | string | –
{ls} | {levelset_phase | ls} | –
MeshPartIdentifier | string | –
e | real | –
a | real | –
rho | real | –
delta_h | real | –
coef | real | –
pexp | real | –
r | real | –
Pref | real | –
Tref | real | –
type | integer | –