inletOutlet

Description

The inletOutlet is a boundary condition that provides a generic outflow condition, with specified inflow for the case of return flow.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            inletOutlet;
    inletValue      <Field>;

    // Optional entries
    phi             <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: inletOutlet	word	yes	-
inletValue	Inlet value field	scalarField	yes	-
phi	Name of flux field	word	no	phi

The inherited entries are elaborated in:

• mixedFaPatchField.H

• The mode of operation is determined by the sign of the flux across the patch edges.
• Sign conventions:
  • Positive flux (out of domain): apply zero-gradient condition
  • Negative flux (into domain): apply the "inletValue" fixed-value

Further information

Tutorial:

• planeTransport

Source code:

• inletOutlet

API:

• Foam::inletOutletFaPatchField

History: Introduced in version v1712