mappedFlowRate

Description

The mappedFlowRate is a velocity boundary condition that describes a volumetric/mass flow normal vector boundary condition by its magnitude as an integral over its area.

The inlet mass flux is taken from the neighbour region.

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            mappedPatch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type                mappedFlowRate;

    // Optional entries
    nbrPhi              <word>;
    phi                 <word>;
    rho                 <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: mappedFlowRate	word	yes	-
nbrPhi	Name of the neighbour flux setting the inlet mass flux	word	no	phi
phi	Name of the local mass flux	word	no	phi
rho	Name of the density field used to normalize the mass flux	word	no	rho

The inherited entries are elaborated in:

• Foam::fixedValueFvPatchField

Further information

Tutorial:

• flameSpreadWaterSuppressionPanel
• oppositeBurningPanels

Source code:

• mappedFlowRate

API:

• Foam::mappedFlowRateFvPatchVectorField

History: Introduced in version 2.1.0