turbulentIntensityKineticEnergyInlet

Description

The turbulentIntensityKineticEnergyInlet is a boundary condition that provides a turbulent kinetic energy condition, based on user-supplied turbulence intensity, defined as a fraction of the mean velocity:

$$k_p = 1.5 (I |\u|)^2$$

where:

Property	Description
$k_p$	Kinetic energy at the patch
$I$	Turbulence intensity
$\u$	Velocity field

In the event of reverse flow, a zero-gradient condition is applied.

Usage

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

Boundary file

<patchName>
{
    type             patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type             turbulentIntensityKineticEnergyInlet;
    intensity        <scalar>;

    // Optional entries
    U               <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: turbulentIntensityKineticEnergyInlet	word	yes	-
intensity	Fraction of mean field [0-1]	scalar	yes	-
U	Name of velocity field	word	no	U

The inherited entries are elaborated in:

• inletOutletFvPatchFields.H

Further information

Tutorial:

• squareBendLiq

Source code:

• turbulentIntensityKineticEnergyInlet

API:

• Foam::turbulentIntensityKineticEnergyInletFvPatchScalarField

History: Introduced in version 1.5