7.13.1.8.6. Darcy

Syntax

Bc Dirichlet For Dof Name [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {on} Mesh Extent Name [Touching TouchingMeshExtent | Opposing OpposingMeshExtent] = Darcy [Using Data Specification Data Spec Name] [Gx = gx | Gy = gy | Gz = gz | Relative_To = relative_to]

Summary

This model is designed to provide the normalized fluid velocity within a matrix that itself may be moving. If the matrix phase has a velocity the fluid velocity returned will be in the lab frame. If not relative phase is provided, the matrix phase is assumed to have a velocity of zero. u_g = v_r \phi - \frac{k_r}{\mu} \mathbf{K}_i( \nabla P_g - \rho_g \vec{g} )

Parameter

Value

Default

Dof Name

string

–

{of}

{of | species | subindex}

–

SpeciesName

string

–

{in}

{in | material_phase}

–

MaterialPhaseName

string

–

{ls}

{levelset_phase | ls}

–

{on}

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

–

Mesh Extent Name

string

–

TouchingMeshExtent

string

–

OpposingMeshExtent

string

–

Data Spec Name

string

–

gx

real

0

gy

real

0

gz

real

0

relative_to

“string”

–