7.6.8.3.9. Porous_Diffusive_Enthalpy_Flux

Syntax

Heat Conduction [{of} SpeciesName] = Porous_Diffusive_Enthalpy_Flux ()

Scope

Aria Material

Summary

Porous diffusive enthalpy flux model. This is used to calculate the heat flux through a porous material with species.

Description

Heat conduction is calculated as

${\bf{q}} = \phi k \nabla T + \phi \rho \sum_{i=1}^N D_i h_i \nabla Y_i$

where $\rho$ is the density, $\phi$ is the solid phase porosity, $Y_i$ is the mass fraction of species $i$ , $D_i$ is the mass diffusivity of species $i$ , $h_i$ is the specific enthalpy for of species $i$ , $k$ is the heat conduction coefficient, and $T$ is the temperature. The first expression is summed over $N$ species defined in the material.

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