This boundary condition applies a heat flux condition to temperature on an external wall in one of three modes: More...

Inheritance diagram for externalWallHeatFluxTemperatureFvPatchScalarField:

Collaboration diagram for externalWallHeatFluxTemperatureFvPatchScalarField:

Public Types
enum	operationMode { fixedPower , fixedHeatFlux , fixedHeatTransferCoeff }
	Operation mode enumeration. More...

Public Types inherited from temperatureCoupledBase
enum	KMethodType { mtFluidThermo , mtSolidThermo , mtDirectionalSolidThermo , mtLookup , mtFunction }
	Type of supplied Kappa. More...

Public Member Functions
	TypeName ("externalWallHeatFluxTemperature")
	Runtime type information. More...

	externalWallHeatFluxTemperatureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &)
	Construct from patch and internal field. More...

	externalWallHeatFluxTemperatureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &, const dictionary &)
	Construct from patch, internal field and dictionary. More...

	externalWallHeatFluxTemperatureFvPatchScalarField (const externalWallHeatFluxTemperatureFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)
	Construct by mapping given. More...

	externalWallHeatFluxTemperatureFvPatchScalarField (const externalWallHeatFluxTemperatureFvPatchScalarField &)
	Construct as copy. More...

virtual tmp< fvPatchScalarField >	clone () const
	Construct and return a clone. More...

	externalWallHeatFluxTemperatureFvPatchScalarField (const externalWallHeatFluxTemperatureFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
	Construct as copy setting internal field reference. More...

virtual tmp< fvPatchScalarField >	clone (const DimensionedField< scalar, volMesh > &iF) const
	Construct and return a clone setting internal field reference. More...

virtual bool	fixesValue () const
	Allow manipulation of the boundary values. More...

virtual void	autoMap (const fvPatchFieldMapper &)
	Map (and resize as needed) from self given a mapping object. More...

virtual void	rmap (const fvPatchScalarField &, const labelList &)
	Reverse map the given fvPatchField onto this fvPatchField. More...

virtual void	updateCoeffs ()
	Update the coefficients associated with the patch field. More...

void	write (Ostream &) const
	Write. More...

Public Member Functions inherited from temperatureCoupledBase
	temperatureCoupledBase (const fvPatch &patch, const word &calculationMethod, const word &kappaName, const word &alphaAniName, const word &alphaName)
	Construct from patch and K name. More...

	temperatureCoupledBase (const fvPatch &patch, const dictionary &dict)
	Construct from patch and dictionary. More...

	temperatureCoupledBase (const fvPatch &patch, const temperatureCoupledBase &base)
	Construct from patch and temperatureCoupledBase. More...

	temperatureCoupledBase (const temperatureCoupledBase &)
	Construct as copy. More...

virtual	~temperatureCoupledBase ()=default
	Destructor. More...

word	KMethod () const
	Method to obtain K. More...

const word &	kappaName () const
	Name of thermal conductivity field. More...

const word &	alphaName () const
	Name of thermal diffusivity field. More...

virtual void	autoMap (const fvPatchFieldMapper &)=0
	Map (and resize as needed) from self given a mapping object. More...

virtual void	rmap (const fvPatchField< scalar > &, const labelList &)=0
	Reverse map the given fvPatchField onto this fvPatchField. More...

virtual tmp< scalarField >	kappa (const scalarField &Tp) const
	Given patch temperature calculate corresponding K field. More...

virtual tmp< scalarField >	alpha (const scalarField &Tp) const
	Given patch temperature calculate corresponding alphaEff field. More...

void	write (Ostream &os) const
	Write. More...

Static Public Attributes
static const Enum< operationMode >	operationModeNames

Additional Inherited Members
Protected Attributes inherited from temperatureCoupledBase
const fvPatch &	patch_
	Underlying patch. More...

const KMethodType	method_
	How to get K. More...

const word	kappaName_
	Name of thermal conductivity field (if looked up from database) More...

const word	alphaAniName_
	Name of the non-Isotropic alpha (default: Anialpha) More...

const word	alphaName_
	Name of thermal diffusivity. More...

autoPtr< PatchFunction1< scalar > >	kappaFunction1_
	Function1 for kappa. More...

autoPtr< PatchFunction1< scalar > >	alphaFunction1_
	Function1 for alpha. More...

Static Protected Attributes inherited from temperatureCoupledBase
static const Enum< KMethodType >	KMethodTypeNames_

Detailed Description

This boundary condition applies a heat flux condition to temperature on an external wall in one of three modes:

fixed power: supply Q
fixed heat flux: supply q
fixed heat transfer coefficient: supply h and Ta

where:

\( Q \)	=	Power [W]
\( q \)	=	Heat flux [W/m^2]
\( h \)	=	Heat transfer coefficient [W/m^2/K]
\( Ta \)	=	Ambient temperature [K]

For heat transfer coefficient mode optional thin thermal layer resistances can be specified through thicknessLayers and kappaLayers entries.

The thermal conductivity kappa can either be retrieved from various possible sources, as detailed in the class temperatureCoupledBase.

The ambient temperature Ta is specified as a Foam::Function1 of time but uniform in space.

Usage

Property	Description	Required	Default
`mode`	'power', 'flux' or 'coefficient'	yes
`Q`	Power [W]	for mode 'power'
`q`	Heat flux [W/m^2]	for mode 'flux'
`h`	Heat transfer coefficient [W/m^2/K]	for mode 'coefficient'
`Ta`	Ambient temperature [K]	for mode 'coefficient'
`thicknessLayers`	Layer thicknesses [m]	no
`kappaLayers`	Layer thermal conductivities [W/m/K]	no
`relaxation`	Relaxation for the wall temperature	no	1
`emissivity`	Surface emissivity for radiative flux to ambient	no	0
`qr`	Name of the radiative field	no	none
`qrRelaxation`	Relaxation factor for radiative field	no	1
`kappaMethod`	Inherited from temperatureCoupledBase	inherited
`kappa`	Inherited from temperatureCoupledBase	inherited

Example of the boundary condition specification:

    <patchName>
    {
        type            externalWallHeatFluxTemperature;

        mode            coefficient;

        Ta              constant 300.0;
        h               constant 10.0;
        thicknessLayers (0.1 0.2 0.3 0.4);
        kappaLayers     (1 2 3 4);

        kappaMethod     fluidThermo;

        value           $internalField;
    }

Note: Quantities that are considered "global" (eg, power, ambient temperature) can be specified as Function1 types. Quantities that may have local variations (eg, htc, heat-flux) can be specified as PatchFunction1 types.

See also: Foam::temperatureCoupledBase Foam::mixedFvPatchScalarField

Source files

Definition at line 211 of file externalWallHeatFluxTemperatureFvPatchScalarField.H.

Member Enumeration Documentation

◆ operationMode

enum operationMode

Operation mode enumeration.

Enumerator
fixedPower	Heat power [W].
fixedHeatFlux	Heat flux [W/m2].
fixedHeatTransferCoeff	Heat transfer coefficient [W/m^2/K].

Definition at line 221 of file externalWallHeatFluxTemperatureFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ externalWallHeatFluxTemperatureFvPatchScalarField() [1/5]

externalWallHeatFluxTemperatureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF
	)

Construct from patch and internal field.

Definition at line 53 of file externalWallHeatFluxTemperatureFvPatchScalarField.C.

◆ externalWallHeatFluxTemperatureFvPatchScalarField() [2/5]

externalWallHeatFluxTemperatureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const dictionary &	dict
	)

Construct from patch, internal field and dictionary.

Definition at line 87 of file externalWallHeatFluxTemperatureFvPatchScalarField.C.

References dict, Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, externalWallHeatFluxTemperatureFvPatchScalarField::fixedHeatFlux, externalWallHeatFluxTemperatureFvPatchScalarField::fixedHeatTransferCoeff, externalWallHeatFluxTemperatureFvPatchScalarField::fixedPower, dictionary::found(), IOobject::name(), Time::New(), fvPatchField< scalar >::operator=(), p, dictionary::readEntry(), dictionary::readIfPresent(), List< T >::resize(), UList< T >::size(), and Foam::Zero.

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◆ externalWallHeatFluxTemperatureFvPatchScalarField() [3/5]

externalWallHeatFluxTemperatureFvPatchScalarField	(	const externalWallHeatFluxTemperatureFvPatchScalarField &	rhs,
		const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const fvPatchFieldMapper &	mapper
	)

Construct by mapping given.

externalWallHeatFluxTemperatureFvPatchScalarField onto a new patch

Definition at line 177 of file externalWallHeatFluxTemperatureFvPatchScalarField.C.

References Field< Type >::map(), List< T >::resize(), and FieldMapper::size().

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◆ externalWallHeatFluxTemperatureFvPatchScalarField() [4/5]

externalWallHeatFluxTemperatureFvPatchScalarField ( const externalWallHeatFluxTemperatureFvPatchScalarField & rhs )

Construct as copy.

Definition at line 209 of file externalWallHeatFluxTemperatureFvPatchScalarField.C.

◆ externalWallHeatFluxTemperatureFvPatchScalarField() [5/5]

externalWallHeatFluxTemperatureFvPatchScalarField	(	const externalWallHeatFluxTemperatureFvPatchScalarField &	rhs,
		const DimensionedField< scalar, volMesh > &	iF
	)