7.14.1.10. Mass_Balance

Syntax

Eq Mass_Balance for Associated DoF [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {on} MeshPart using Interp with {Term_0} … {Term_N}

Scope

Aria Region

Summary

The mass balance equation for porous media. See general porous flow information in Porous Flow Equations.

Description

Admissible value for Dof are PRESSURE, DENSITY, SATURATION, and MASS_FRACTION.

Admissible values of Interp are Q_{1}, Q_{2}, Q_{2S}.

Admissible values of Term_n are MASS, LUMPED_MASS, ADV, UPWIND_ADV, DIFF, SRC, and XFER.

With the exception of XFER these terms are described in Porous Flow Equations.

The Meshpart must be an active element block.

Parameter

Value

Default

{of}

{of | species | subindex}

–

SpeciesName

string

–

{in}

{in | material_phase}

–

MaterialPhaseName

string

–

{ls}

{levelset_phase | ls}

–

Associated DoF

string

–

{on}

{@ | at | for | in | on | over}

–

MeshPart

string

–

Interp

string

–

{Term_n}

See Description

–