7.14.1.20. Species

Beta Capability

The species equation is tested for low Reynolds numbers, R_{e} < 10 but should be used with caution beyond that range.

Syntax

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

Scope

Aria Region

Summary

Activates the Conservation of Chemical Species equation.

Description

The only admissible value for Dof is SPECIES.

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

Admissible values of Term_n are MASS, LUMPED_MASS, ADV, DIFF, SRC, FRACBAL and XFER. With the exception of XFER these terms are described in Conservation of Chemical Species. The FRACBAL term may not be included with other terms.

Some other things to note about species equations in Aria:

  • The FRACBAL term may be assigned to any species number.

  • Species numbers in Aria are arbitrary; they may start at any value and need not be continuous.

  • For the species fraction balances, Aria will automatically detect all species that are present in the problem and include them in the balance.

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

–