∇

Description

The semiPermeableBaffleVelocity is a boundary condition that provides a velocity boundary condition for baffles which are permeable to a some species and impermeable to others. It must be used in conjunction with the corresponding mass-fraction condition, semiPermeableBaffleMassFraction.

This condition sums the species fluxes generated by the the mass-fraction conditions, and uses this total to set the velocity.

Usage

The condition requires entries in both the boundary and field files.

Boundary file 

<patchName>
{
    type            patch;
    ...
}

Field file 

<patchName>
{
    // Mandatory entries
    type            semiPermeableBaffleVelocity;

    // Optional entries
    rho             <word>;

    // Inherited entries
    ...
}

where:

Property Description Type Required Default
type Type name: semiPermeableBaffleVelocity word yes -
rho Name of density field word no rho

The inherited entries are elaborated in:

  • mappedPatchBase.H
  • fixedValueFvPatchField.H

Further information

Tutorial:

Source code:

API:

History:

  • Introduced in version v2206