Tied_Pressure

Syntax

Enforcement For Mass_Balance ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {=} Tied_Pressure [Co_Field = co_field]

Summary

Applies a contact mass flux via tied pressure formulation analogous to the tied_temperature energy contact enforcement models, wherein temperature is replaced with pressure and heat flux replaced with mass flux

Description

The numerical mass flux \hat{\mathbf{m}} at the contact interface is defined as

\hat{\mathbf{m}} = \frac{D_h}{2} \left[P \right] + \left\{\mathbf{m}\right\},

where \left\{\mathbf{m}\right\} = 0.5 \left(\rho_1 \mathbf{u}_1 + \rho_2 \mathbf{u}_2\right) is the average mass flux, \left[P \right] = P_1 \hat{\mathbf{n}}_1 + P_2 \hat{\mathbf{n}}_2, and D_h is the averaged darcy mass flux coefficient analogous to the contact heat transfer coefficient.

Parameter

Value

Default

{of}

{of | species | subindex}

–

SpeciesName

string

–

{in}

{in | material_phase}

–

MaterialPhaseName

string

–

{ls}

{levelset_phase | ls}

–

{=}

{= | are | is}

–

co_field

integer

0