7.6.17.46.14. Porous_Phase_Specific_Average

Syntax

Specific Heat [{of} SpeciesName] = Porous_Phase_Specific_Average ([Liquid_Phase_Name = Liquid_Phase_Name] | [Gas_Phase_Name = Gas_Phase_Name])

Scope

Aria Material

Summary

Specific heat for a multiphase material of two or three phases

Description

For a two-phase (solid and liquid) porous media problem:

$c_p = \frac{(1-\phi)\rho_s c_{p,s} + \phi \rho_l c_{p, l}}{\rho}$

For a three-phase (solid, liquid, gas) porous media problem:

$c_p = \frac{(1-\phi)\rho_s c_{p, s} + \phi S_l \rho_l c_{p,l} + \phi (1-S_l) \rho_g c_{p,g}}{\rho}$

where $\phi$ is the porosity, $\rho_i$ the density in phase i, $c_{p,i}$ the specific heat in phase i, and $S_l$ the liquid saturation.

No enthalpy evaluator is provided.