outletInlet

Description

The outletInlet is a generic mixed boundary condition that sets the patch value to a user-specified fixedValue for reverse flows, and treats inflow using a zeroGradient condition.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            outletInlet;
    outletValue     <Field>;

    // Optional entries
    phi             phi;

    // Inherited entries
}

where:

Property	Description	Type	Required	Default
type	Type name: outletInlet	word	yes	-
outletValue	Outlet field for reverse flow	Field	yes	-
phi	Name of the local mass flux	word	no	phi

The inherited entries are elaborated in:

• Foam::mixedFvPatchField

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

Further information

Tutorial:

• drag

Source code:

• outletInlet

API:

• Foam::outletInletFvPatchField

History: Introduced in version 1.5