This source is designed to model the effect of solidification and melting processes, e.g. windhield defrosting. More...

Inheritance diagram for solidificationMeltingSource:

Collaboration diagram for solidificationMeltingSource:

Public Types
enum	thermoMode { mdThermo, mdLookup }

Public Types inherited from cellSetOption
enum	selectionModeType { smPoints, smCellSet, smCellZone, smAll }
	Enumeration for selection mode types. More...

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

	solidificationMeltingSource (const word &sourceName, const word &modelType, const dictionary &dict, const fvMesh &mesh)
	Construct from explicit source name and mesh. More...

	solidificationMeltingSource (const solidificationMeltingSource &)=delete
	Disallow default bitwise copy construction. More...

virtual void	addSup (fvMatrix< scalar > &eqn, const label fieldi)
	Add explicit contribution to enthalpy equation. More...

virtual void	addSup (fvMatrix< vector > &eqn, const label fieldi)
	Add implicit contribution to momentum equation. More...

virtual void	addSup (const volScalarField &rho, fvMatrix< scalar > &eqn, const label fieldi)
	Add explicit contribution to compressible enthalpy equation. More...

virtual void	addSup (const volScalarField &rho, fvMatrix< vector > &eqn, const label fieldi)
	Add implicit contribution to compressible momentum equation. More...

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

void	operator= (const solidificationMeltingSource &)=delete
	Disallow default bitwise assignment. More...

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

	cellSetOption (const word &name, const word &modelType, const dictionary &dict, const fvMesh &mesh)
	Construct from components. More...

virtual	~cellSetOption ()
	Destructor. More...

scalar	timeStart () const
	Return const access to the time start. More...

scalar	duration () const
	Return const access to the duration. More...

bool	inTimeLimits (const scalar time) const
	Return true if within time limits. More...

const selectionModeType &	selectionMode () const
	Return const access to the cell selection mode. More...

const word &	cellSetName () const
	Return const access to the name of cell set for "cellSet". More...

scalar	V () const
	Return const access to the total cell volume. More...

const labelList &	cells () const
	Return const access to the cell set. More...

scalar &	timeStart ()
	Return access to the time start. More...

scalar &	duration ()
	Return access to the duration. More...

virtual bool	isActive ()
	Is the source active? More...

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

	declareRunTimeSelectionTable (autoPtr, option, dictionary,(const word &name, const word &modelType, const dictionary &dict, const fvMesh &mesh),(name, modelType, dict, mesh))

	option (const word &name, const word &modelType, const dictionary &dict, const fvMesh &mesh)
	Construct from components. More...

autoPtr< option >	clone () const
	Return clone. More...

virtual	~option ()
	Destructor. More...

const word &	name () const
	Return const access to the source name. More...

const fvMesh &	mesh () const
	Return const access to the mesh database. More...

const dictionary &	coeffs () const
	Return dictionary. More...

bool	active () const
	Return const access to the source active flag. More...

void	setApplied (const label fieldi)
	Set the applied flag to true for field index fieldi. More...

Switch &	active ()
	Return access to the source active flag. More...

virtual label	applyToField (const word &fieldName) const
	Return index of field name if found in fieldNames list. More...

virtual void	checkApplied () const
	Check that the source has been applied. More...

virtual void	addSup (fvMatrix< symmTensor > &eqn, const label fieldi)

virtual void	addSup (fvMatrix< sphericalTensor > &eqn, const label fieldi)

virtual void	addSup (fvMatrix< tensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &rho, fvMatrix< symmTensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &rho, fvMatrix< sphericalTensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &rho, fvMatrix< tensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &alpha, const volScalarField &rho, fvMatrix< scalar > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &alpha, const volScalarField &rho, fvMatrix< vector > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &alpha, const volScalarField &rho, fvMatrix< symmTensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &alpha, const volScalarField &rho, fvMatrix< sphericalTensor > &eqn, const label fieldi)

virtual void	addSup (const volScalarField &alpha, const volScalarField &rho, fvMatrix< tensor > &eqn, const label fieldi)

virtual void	constrain (fvMatrix< scalar > &eqn, const label fieldi)

virtual void	constrain (fvMatrix< vector > &eqn, const label fieldi)

virtual void	constrain (fvMatrix< sphericalTensor > &eqn, const label fieldi)

virtual void	constrain (fvMatrix< symmTensor > &eqn, const label fieldi)

virtual void	constrain (fvMatrix< tensor > &eqn, const label fieldi)

virtual void	correct (volScalarField &field)

virtual void	correct (volVectorField &field)

virtual void	correct (volSphericalTensorField &field)

virtual void	correct (volSymmTensorField &field)

virtual void	correct (volTensorField &field)

virtual void	writeHeader (Ostream &) const
	Write the source header information. More...

virtual void	writeFooter (Ostream &) const
	Write the source footer information. More...

virtual void	writeData (Ostream &) const
	Write the source properties. More...

Static Public Attributes
static const NamedEnum< thermoMode, 2 >	thermoModeTypeNames_

Static Public Attributes inherited from cellSetOption
static const NamedEnum< selectionModeType, 4 >	selectionModeTypeNames_
	Word list of selection mode type names. More...

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

Protected Member Functions inherited from cellSetOption
void	setSelection (const dictionary &dict)
	Set the cellSet or points selection. More...

void	setCellSet ()
	Set the cell set based on the user input selection mode. More...

Protected Attributes inherited from cellSetOption
scalar	timeStart_
	Time start. More...

scalar	duration_
	Duration. More...

selectionModeType	selectionMode_
	Cell selection mode. More...

word	cellSetName_
	Name of cell set for "cellSet" and "cellZone" selectionMode. More...

List< point >	points_
	List of points for "points" selectionMode. More...

labelList	cells_
	Set of cells to apply source to. More...

scalar	V_
	Sum of cell volumes. More...

Protected Attributes inherited from option
const word	name_
	Source name. More...

const word	modelType_
	Model type. More...

const fvMesh &	mesh_
	Reference to the mesh database. More...

dictionary	dict_
	Top level source dictionary. More...

dictionary	coeffs_
	Dictionary containing source coefficients. More...

Switch	active_
	Source active flag. More...

wordList	fieldNames_
	Field names to apply source to - populated by derived models. More...

List< bool >	applied_
	Applied flag list - corresponds to each fieldNames_ entry. More...

Detailed Description

This source is designed to model the effect of solidification and melting processes, e.g. windhield defrosting.

The isotherm phase change occurs at the melting temperature, Tsol (= Tliq). The not isotherm phase change occurs between solidus and liquidus temperature, Tsol < Tliq respectively, as long as the melt fraction is greater than the max eutectic melt fraction, alpha1e (0 = pure_substance, 1 = eutectic_mixture is not permitted), where a linear eutectic melt fraction to temperature relation is considered; e.g. given a specific quantity of a binary system, alpha1 is its melt fraction and alpha0 is its solid fraction, such that alpha0 = 1 - alpha1 therefore, assuming infinite solute diffusion, the quantity of a component in solid phase is (1 - alpha1) * CS where CS is the solid concentration of the considered component and the quantity of a component in liquid phase is alpha1 * CL where CL is the melt concentration of the considered component; considering that the total quantity of a component must be equal to the sum of the quantities of the considered component in the liquid and solid phases, if C0 is the initial concentration of the considered component before the phase change, then: C0 = (1 - alpha1) * CS + alpha1 * CL (lever rule) from which: alpha1 = (C0 - CS) / (CL - CS) and thus:

for a miscible binary system alpha1e = 0;
for a binary system not miscible at solid state alpha1e = C0 / CLE where CLE is eutectic melt concentration;
for a binary system partially-miscible at solid state alpha1e = (C0 - CSE) / (CLE - CSE) where CSE is eutectic solid concentration of the relative solid solution.

The presence of the solid phase in the flow field is incorporated into the model as a momentum porosity contribution; the energy associated with the phase change is added as an enthalpy contribution.

References:

    Voller, V. R., & Prakash, C. (1987).
    A fixed grid numerical modelling methodology for convection-diffusion
    mushy region phase-change problems.
    International Journal of Heat and Mass Transfer, 30(8), 1709-1719.

    Swaminathan, C. R., & Voller, V. R. (1992).
    A general enthalpy method for modeling solidification processes.
    Metallurgical transactions B, 23(5), 651-664.

The model generates the field <name>:alpha1 which can be visualised to to show the melt distribution as a fraction [0-1].

Usage

Example usage:

solidificationMeltingSource1
{
    type            solidificationMeltingSource;
    active          yes;

    selectionMode   cellZone;
    cellZone        iceZone;

    Tsol            273;
    L               334000;
    thermoMode      thermo;
    beta            50e-6;
    rhoRef          800;
}

Where:

Property	Description	Required	Default value
`Tsol`	Solidus temperature [K]	yes
`Tliq`	Liquidus temperature [K]	no	Tsol
`alpha1e`	Max eutectic melt fraction [0-1[	no	0
`L`	Latent heat of fusion [J/kg]	yes
`relax`	Relaxation coefficient [0-1]	no	0.9
`thermoMode`	Thermo mode [thermo	lookup]	yes
`rhoRef`	Reference (solid) density [kg/m^3]	yes
`rho`	Name of density field	no	rho
`T`	Name of temperature field	no	T
`Cp`	Name of specific heat field	no	Cp
`U`	Name of velocity field	no	U
`phi`	Name of flux field	no	phi
`Cu`	Model coefficient [1/s]	no	100000
`q`	Model coefficient	no	0.001
`beta`	Thermal expansion coefficient [1/K]	yes
`g`	Accelerartion due to gravity	no

Source files

Definition at line 226 of file solidificationMeltingSource.H.

Member Enumeration Documentation

◆ thermoMode

enum thermoMode

Enumerator
mdThermo
mdLookup

Definition at line 232 of file solidificationMeltingSource.H.

Constructor & Destructor Documentation

◆ solidificationMeltingSource() [1/2]

solidificationMeltingSource	(	const word &	sourceName,
		const word &	modelType,
		const dictionary &	dict,
		const fvMesh &	mesh
	)

Construct from explicit source name and mesh.

Definition at line 190 of file solidificationMeltingSource.C.

References Foam::abort(), solidificationMeltingSource::addSup(), dictionaryName::dictName(), Foam::FatalError, FatalErrorInFunction, basicThermo::he(), IOobject::name(), and thermo.

Referenced by NamedEnum< directionType, 3 >::names().

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◆ solidificationMeltingSource() [2/2]

solidificationMeltingSource ( const solidificationMeltingSource & )

delete

Disallow default bitwise copy construction.

Member Function Documentation

◆ TypeName()

TypeName ( "solidificationMeltingSource" )

Runtime type information.

◆ addSup() [1/4]

void addSup	(	fvMatrix< scalar > &	eqn,
		const label	fieldi
	)

virtual

Add explicit contribution to enthalpy equation.

Reimplemented from option.

Definition at line 262 of file solidificationMeltingSource.C.

Referenced by solidificationMeltingSource::addSup(), and solidificationMeltingSource::solidificationMeltingSource().

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◆ addSup() [2/4]

void addSup	(	fvMatrix< vector > &	eqn,
		const label	fieldi
	)

virtual

Add implicit contribution to momentum equation.

Reimplemented from option.

Definition at line 283 of file solidificationMeltingSource.C.

References solidificationMeltingSource::addSup(), Cp(), lduMatrix::diag(), Foam::endl(), forAll, g, Foam::Info, IOobject::name(), Foam::pow3(), fvMatrix< Type >::psi(), fvMatrix< Type >::source(), Sp, Foam::sqr(), Su, and Foam::type().

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◆ addSup() [3/4]

void addSup	(	const volScalarField &	rho,
		fvMatrix< scalar > &	eqn,
		const label	fieldi
	)

virtual

Add explicit contribution to compressible enthalpy equation.

Reimplemented from option.

Definition at line 272 of file solidificationMeltingSource.C.

References solidificationMeltingSource::addSup().

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◆ addSup() [4/4]

void addSup	(	const volScalarField &	rho,
		fvMatrix< vector > &	eqn,
		const label	fieldi
	)

virtual

Add implicit contribution to compressible momentum equation.

Reimplemented from option.

Definition at line 320 of file solidificationMeltingSource.C.

◆ read()

bool read ( const dictionary & dict )

virtual

Read source dictionary.

Reimplemented from cellSetOption.

Definition at line 30 of file solidificationMeltingSourceIO.C.

References option::coeffs_, dictionary::lookup(), NamedEnum< Enum, nEnum >::read(), cellSetOption::read(), dictionary::readIfPresent(), and solidificationMeltingSource::thermoModeTypeNames_.

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◆ operator=()

void operator= ( const solidificationMeltingSource & )

delete

Disallow default bitwise assignment.

Member Data Documentation

◆ thermoModeTypeNames_

const Foam::NamedEnum< Foam::fv::solidificationMeltingSource::thermoMode, 2 > thermoModeTypeNames_

static

Definition at line 238 of file solidificationMeltingSource.H.

Referenced by NamedEnum< directionType, 3 >::names(), and solidificationMeltingSource::read().

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

src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.H
src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.C
src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSourceIO.C
src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSourceTemplates.C

Public Types

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ thermoMode

Constructor & Destructor Documentation

◆ solidificationMeltingSource() [1/2]

◆ solidificationMeltingSource() [2/2]

Member Function Documentation

◆ TypeName()

◆ addSup() [1/4]

◆ addSup() [2/4]

◆ addSup() [3/4]

◆ addSup() [4/4]

◆ read()

◆ operator=()

Member Data Documentation

◆ thermoModeTypeNames_