Heat transfer coefficient calculation based on Reynolds Analogy, which is used to relate turbulent momentum and heat transfer. More...

Inheritance diagram for ReynoldsAnalogy:

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Collaboration diagram for ReynoldsAnalogy:

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

	ReynoldsAnalogy (const dictionary &dict, const fvMesh &mesh, const word &TName)
	Construct from components. More...

	ReynoldsAnalogy (const ReynoldsAnalogy &)=delete
	No copy construct. More...

void	operator= (const ReynoldsAnalogy &)=delete
	No copy assignment. More...

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

virtual bool	read (const dictionary &dict)
	Read from dictionary. More...

Public Member Functions inherited from heatTransferCoeffModel
	TypeName ("heatTransferCoeffModel")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, heatTransferCoeffModel, dictionary,(const dictionary &dict, const fvMesh &mesh, const word &TName),(dict, mesh, TName))

	heatTransferCoeffModel (const dictionary &dict, const fvMesh &mesh, const word &TName)
	Construct from components. More...

	heatTransferCoeffModel (const heatTransferCoeffModel &)=delete
	No copy construct. More...

void	operator= (const heatTransferCoeffModel &)=delete
	No copy assignment. More...

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

const fvMesh &	mesh () const
	The mesh reference. More...

const labelHashSet &	patchSet () const
	Wall patches to process. More...

const word &	TName () const
	Temperature name. More...

const word &	qrName () const
	Name of radiative heat flux. More...

virtual bool	read (const dictionary &dict)
	Read from dictionary. More...

virtual bool	calc (volScalarField &result, const FieldField< Field, scalar > &q)

tmp< FieldField< Field, scalar > >	q () const
	Return q boundary fields. More...

Protected Member Functions
virtual tmp< Field< scalar > >	rho (const label patchi) const

virtual tmp< Field< scalar > >	Cp (const label patchi) const

virtual tmp< volSymmTensorField >	devReff () const

tmp< FieldField< Field, scalar > >	Cf () const

virtual void	htc (volScalarField &htc, const FieldField< Field, scalar > &q)
	Set the heat transfer coefficient. More...

virtual void	htc (volScalarField &htc, const FieldField< Field, scalar > &q)=0
	Set the heat transfer coefficient. More...

Protected Attributes
word	UName_
	Name of velocity field. More...

vector	URef_
	Reference velocity. More...

word	rhoName_
	Name of density field. More...

scalar	rhoRef_
	Reference density. More...

word	CpName_
	Name of specific heat capacity field. More...

scalar	CpRef_
	Reference specific heat capacity. More...

Protected Attributes inherited from heatTransferCoeffModel
const fvMesh &	mesh_
	Mesh reference. More...

labelHashSet	patchSet_
	Optional list of (wall) patches to process. More...

const word	TName_
	Temperature name. More...

word	qrName_
	Name of radiative heat flux. More...

Additional Inherited Members
Static Public Member Functions inherited from heatTransferCoeffModel
static autoPtr< heatTransferCoeffModel >	New (const dictionary &dict, const fvMesh &mesh, const word &TName)
	Return a reference to the selected heat transfer coefficient model. More...

Detailed Description

Heat transfer coefficient calculation based on Reynolds Analogy, which is used to relate turbulent momentum and heat transfer.

The heat transfer coefficient is derived from the skin friction coefficient:

\[ C_f = \frac{\tau_w}{0.5 \rho_\infty |U|^2} \]

as:

\[ h = 0.5 \rho_\infty c_{p,\infty} |U_{\infty}| C_f \]

where

\( h \)	=	Convective heat transfer coefficient of the flow
\( \rho_\infty \)	=	Reference fluid density
\( c_{p,\infty} \)	=	Reference specific heat capacity at constant pressure
\( U_{\infty} \)	=	Reference velocity
\( C_f \)	=	Skin friction coefficient
\( \tau_w \)	=	Wall shear stress

Usage

Minimal example by using system/controlDict.functions:

heatTransferCoeff1
{
    // Mandatory and other optional entries
    ...
    htcModel        ReynoldsAnalogy;

    // Conditional mandatory entries (runtime modifiable)
    UInf            (10 0 0);

    // Conditional optional entries (runtime modifiable)
    Cp              <CpName>;
    rho             <rhoName>;

    // mandatory if Cp == CpInf
    CpInf           1005;

    // mandatory if rho == rhoInf
    rhoInf          1;
}

where the entries mean:

Property	Description	Type	Reqd	Dflt
`type`	Model name: ReynoldsAnalogy	word	yes	-
`UInf`	Reference velocity	scalar	yes	-
`Cp`	Name of reference specific heat capacity	word	no	Cp
`CpInf`	Reference specific heat capacity value	scalar	cndtnl	-
`rho`	Name of reference fluid density	word	no	rho
`rhoInf`	Reference fluid density value	scalar	cndtnl	-

Note

to use a reference Cp, set Cp to CpInf
to use a reference rho, set rho to rhoInf

See also

Source files

Definition at line 186 of file ReynoldsAnalogy.H.

Constructor & Destructor Documentation

◆ ReynoldsAnalogy() [1/2]

ReynoldsAnalogy	(	const dictionary &	dict,
		const fvMesh &	mesh,
		const word &	TName
	)

Construct from components.

Definition at line 196 of file ReynoldsAnalogy.C.

References dict, and ReynoldsAnalogy::read().

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◆ ReynoldsAnalogy() [2/2]

ReynoldsAnalogy ( const ReynoldsAnalogy & )

delete

No copy construct.

◆ ~ReynoldsAnalogy()

virtual ~ReynoldsAnalogy ( )

virtualdefault

Destructor.

Member Function Documentation

◆ rho()

Foam::tmp< Foam::Field< Foam::scalar > > rho ( const label patchi ) const

protectedvirtual

Definition at line 54 of file ReynoldsAnalogy.C.

References fvMesh::boundary(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, objectRegistry::foundObject(), objectRegistry::lookupObject(), heatTransferCoeffModel::mesh_, n, heatTransferCoeffModel::New(), rho, ReynoldsAnalogy::rhoName_, ReynoldsAnalogy::rhoRef_, and UPtrList< T >::size().

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◆ Cp()

Foam::tmp< Foam::Field< Foam::scalar > > Cp ( const label patchi ) const

protectedvirtual

Definition at line 76 of file ReynoldsAnalogy.C.

References basicThermo::dictName, Foam::exit(), Foam::FatalError, FatalErrorInFunction, n, and Foam::New().

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◆ devReff()

Foam::tmp< Foam::volSymmTensorField > devReff ( ) const

protectedvirtual

Definition at line 103 of file ReynoldsAnalogy.C.

References Foam::dev(), basicThermo::dictName, Foam::dimViscosity, Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::fvc::grad(), nu, transportProperties(), turb, Foam::twoSymm(), and U.

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◆ Cf()

Foam::tmp< Foam::FieldField< Foam::Field, Foam::scalar > > Cf ( ) const

protected

Definition at line 161 of file ReynoldsAnalogy.C.

References forAll, Foam::mag(), Foam::magSqr(), Foam::New(), fvPatch::nf(), fvPatchField< Type >::patch(), R, U, and Foam::Zero.

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◆ htc()

void htc	(	volScalarField &	htc,
		const FieldField< Field, scalar > &	q
	)

protectedvirtual

Set the heat transfer coefficient.

Implements heatTransferCoeffModel.

Definition at line 245 of file ReynoldsAnalogy.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryFieldRef(), Cp, ReynoldsAnalogy::htc(), Foam::mag(), and rho.

Referenced by ReynoldsAnalogy::htc().

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◆ TypeName()

TypeName ( "ReynoldsAnalogy" )

Runtime type information.

◆ operator=()

void operator= ( const ReynoldsAnalogy & )

delete

No copy assignment.

◆ read()

bool read ( const dictionary & dict )

virtual

Read from dictionary.

Reimplemented from heatTransferCoeffModel.

Definition at line 217 of file ReynoldsAnalogy.C.

References dict, and kEpsilonLopesdaCosta< BasicTurbulenceModel >::read().

Referenced by ReynoldsAnalogy::ReynoldsAnalogy().

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Member Data Documentation

◆ UName_

word UName_

protected

Name of velocity field.

Definition at line 195 of file ReynoldsAnalogy.H.

◆ URef_

vector URef_

protected

Reference velocity.

Definition at line 198 of file ReynoldsAnalogy.H.

◆ rhoName_

word rhoName_

protected

Name of density field.

Definition at line 201 of file ReynoldsAnalogy.H.

Referenced by ReynoldsAnalogy::rho().

◆ rhoRef_

scalar rhoRef_

protected

Reference density.

Definition at line 204 of file ReynoldsAnalogy.H.

Referenced by ReynoldsAnalogy::rho().

◆ CpName_

word CpName_

protected

Name of specific heat capacity field.

Definition at line 207 of file ReynoldsAnalogy.H.

◆ CpRef_

scalar CpRef_

protected

Reference specific heat capacity.

Definition at line 210 of file ReynoldsAnalogy.H.

The documentation for this class was generated from the following files:

src/functionObjects/field/heatTransferCoeff/heatTransferCoeffModels/ReynoldsAnalogy/ReynoldsAnalogy.H
src/functionObjects/field/heatTransferCoeff/heatTransferCoeffModels/ReynoldsAnalogy/ReynoldsAnalogy.C

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ReynoldsAnalogy() [1/2]

◆ ReynoldsAnalogy() [2/2]

◆ ~ReynoldsAnalogy()

Member Function Documentation

◆ rho()

◆ Cp()

◆ devReff()

◆ Cf()

◆ htc()

◆ TypeName()

◆ operator=()

◆ read()

Member Data Documentation

◆ UName_

◆ URef_

◆ rhoName_

◆ rhoRef_

◆ CpName_

◆ CpRef_