outletPhaseMeanVelocity

Description

The outletPhaseMeanVelocity is a velocity-outlet boundary condition that adjusts the velocity for the given phase to achieve the specified mean thus causing the phase-fraction to adjust according to the mass flow rate.

Typical usage is as the outlet condition for a towing-tank ship simulation to maintain the outlet water level at the level as the inlet.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            outletPhaseMeanVelocity;
    Umean           <scalar>;
    alpha           <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: outletPhaseMeanVelocity	word	yes	-
Umean	Mean velocity normal to the boundary	scalar	yes	-
rho	Name of phase-fraction field	word	yes	-

The inherited entries are elaborated in:

• Foam::mixedFvPatchField

Further information

Tutorial:

• DTCHull

Source code:

• outletPhaseMeanVelocity

API:

• Foam::outletPhaseMeanVelocityFvPatchVectorField

History: Introduced in version 2.3.0