fixedMultiPhaseHeatFlux

Description

The compressible::fixedMultiPhaseHeatFlux is a boundary condition that calculates a wall temperature that produces the specified overall wall heat flux across all the phases in an Eulerian multi-phase simulation.

Intended to be used with the copiedFixedValue condition to ensure that phase wall temperature are consistent:

• Set fixedMultiPhaseHeatFlux boundary for one of the phases
• Use copiedFixedValue for all the other phases.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            fixedMultiPhaseHeatFlux;
    q               <scalarField>;

    // Optional entries
    relax           <scalar>;
    Tmin            <scalar>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: fixedMultiPhaseHeatFlux	word	yes	-
q	Heat power [W] or flux [W/m^2]	scalarField	yes	-
relax	Relaxation factor	scalar	no	1.0
Tmin	Minimum temperature limit [K]	scalar	no	273.0

The inherited entries are elaborated in:

• fixedValueFvPatchField.H

Further information

Tutorial:

• wallBoilingIATE

Source code:

• fixedMultiPhaseHeatFlux

API:

• Foam::fixedMultiPhaseHeatFluxFvPatchScalarField

History: Introduced in version v2012