swirlFlowRateInletVelocity

Description

The swirlFlowRateInletVelocity is a velocity boundary condition that provides a volumetric- or mass-flow normal vector boundary condition by its magnitude as an integral over its area with a swirl component determined by the angular speed, given in revolutions per minute (RPM).

The basis of the patch (volumetric or mass) is determined by the dimensions of the flux, phi. The current density is used to correct the velocity when applying the mass basis.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type           swirlFlowRateInletVelocity;
    flowRate       <Function1<scalar>>;
    rpm            <Function1<scalar>>;

    // Optional entries
    phi            <word>;
    rho            <word>;
    origin         <vector>;
    axis           <vector>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: swirlFlowRateInletVelocity	word	yes	-
flowRate	Flow rate profile	Function1<scalar>	yes	-
rpm	Rotational speed profile	Function1<scalar>	yes	-
phi	Name of the flux field	word	no	phi
rho	Name of the density field	word	no	rho
origin	Origin of rotation	vector	no	Zero
axis	Axis of rotation	vector	no	Zero

The inherited entries are elaborated in:

• Foam::fixedValueFvPatchField
• Foam::Function1

• The value is positive into the domain.

Further information

Tutorial:

• N/A

Source code:

• swirlFlowRateInletVelocity

API:

• Foam::swirlFlowRateInletVelocityFvPatchVectorField

History: Introduced in version 1.7.0