Rotor disk source. More...

Inheritance diagram for rotorDiskSource:

Collaboration diagram for rotorDiskSource:

[legend]

Classes
struct	flapData

Public Types
enum	geometryModeType { gmAuto, gmSpecified }

enum	inletFlowType { ifFixed, ifSurfaceNormal, ifLocal }

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

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

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

virtual	~rotorDiskSource ()
	Destructor. More...

scalar	rhoRef () const
	Return the reference density for incompressible case. More...

scalar	omega () const
	Return the rotational speed [rad/s]. More...

const List< point > &	x () const
	Return the cell centre positions in local rotor frame. More...

const cylindricalCS &	coordSys () const
	Return the rotor co-ordinate system (r, theta, z) More...

template<class RhoFieldType >
void	calculate (const RhoFieldType &rho, const vectorField &U, const scalarField &thetag, vectorField &force, const bool divideVolume=true, const bool output=true) const
	Calculate forces. More...

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

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

virtual bool	read (const dictionary &dict)
	Read source dictionary. 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< scalar > &eqn, const label fieldi)

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< scalar > &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< geometryModeType, 2 >	geometryModeTypeNames_

static const NamedEnum< inletFlowType, 3 >	inletFlowTypeNames_

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

Protected Member Functions
void	checkData ()
	Check data. More...

void	setFaceArea (vector &axis, const bool correct)
	Set the face areas per cell, and optionally correct the rotor axis. More...

void	createCoordinateSystem ()
	Create the co-ordinate system. More...

void	constructGeometry ()
	Construct geometry. More...

tmp< vectorField >	inflowVelocity (const volVectorField &U) const
	Return the inlet flow field. More...

template<class Type >
void	writeField (const word &name, const List< Type > &values, const bool writeNow=false) const
	Helper function to write rotor values. 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
scalar	rhoRef_
	Reference density for incompressible case. More...

scalar	omega_
	Rotational speed [rad/s]. More...

label	nBlades_
	Number of blades. More...

inletFlowType	inletFlow_
	Inlet flow type. More...

vector	inletVelocity_
	Inlet velocity for specified iinflow. More...

scalar	tipEffect_
	Tip effect [0-1]. More...

flapData	flap_
	Blade flap coefficients [rad/s]. More...

List< point >	x_
	Cell centre positions in local rotor frame. More...

List< tensor >	R_
	Rotation tensor for flap angle. More...

List< tensor >	invR_
	Inverse rotation tensor for flap angle. More...

List< scalar >	area_
	Area [m2]. More...

cylindricalCS	coordSys_
	Rotor local cylindrical co-ordinate system (r, theta, z) More...

autoPtr< cylindrical >	cylindrical_
	Rotor transformation co-ordinate system. More...

scalar	rMax_
	Maximum radius. More...

autoPtr< trimModel >	trim_
	Trim model. More...

bladeModel	blade_
	Blade data. More...

profileModelList	profiles_
	Profile data. 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...

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...

Detailed Description

Rotor disk source.

Cell based momemtum source which approximates the mean effects of rotor forces on a cylindrical region within the domain.

Usage

Example usage:

rotorDiskSourceCoeffs
{
    fields          (U);    // names of fields on which to apply source
    nBlades         3;      // number of blades
    tipEffect       0.96;   // normalised radius above which lift = 0

    inletFlowType   local;  // inlet flow type specification

    geometryMode    auto;   // geometry specification

    refDirection    (-1 0 0); // reference direction
                              // - used as reference for psi angle

    trimModel       fixed;  // fixed || targetForce

    flapCoeffs
    {
        beta0           0;  // coning angle [deg]
        beta1c          0;  // lateral flapping coeff (cos coeff)
        beta2s          0;  // longitudinal flapping coeff (sin coeff)
    }

    blade
    {
        // see bladeModel.H for documentation
    }

    profiles
    {
        profile1
        {
            type    lookup; // lookup || series
            ...
            // see lookupProfile.H or seriesProfile.H for documentation
        }
        profile2
        {
            ...
        }
    }
}

Where: Valid options for the geometryMode entry include:

auto : determine rototor co-ord system from cells
specified : specified co-ord system

Valid options for the inletFlowType entry include:

fixed : specified velocity
local : use local flow conditions
surfaceNormal : specified normal velocity (positive towards rotor)

See also: Foam::bladeModel Foam::lookupProfile Foam::seriesProfile

Source files

Definition at line 125 of file rotorDiskSource.H.

Member Enumeration Documentation

enum geometryModeType

Enumerator
gmAuto
gmSpecified

Definition at line 131 of file rotorDiskSource.H.

enum inletFlowType

Enumerator
ifFixed
ifSurfaceNormal
ifLocal

Definition at line 138 of file rotorDiskSource.H.

Constructor & Destructor Documentation

rotorDiskSource	(	const word &	name,
		const word &	modelType,
		const dictionary &	dict,
		const fvMesh &	mesh
	)

Construct from components.

Definition at line 468 of file rotorDiskSource.C.

References Foam::read().

Referenced by rotorDiskSource::inflowVelocity().

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~rotorDiskSource ( )

virtual

Destructor.

Definition at line 501 of file rotorDiskSource.C.

References rotorDiskSource::addSup().

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Member Function Documentation

void checkData ( )

protected

Check data.

Definition at line 70 of file rotorDiskSource.C.

References Foam::abort(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::nl, and Foam::readScalar().

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void setFaceArea	(	vector &	axis,
		const bool	correct
	)

protected

Set the face areas per cell, and optionally correct the rotor axis.

Definition at line 126 of file rotorDiskSource.C.

References polyPatch::coupled(), Foam::dimArea, Foam::endl(), forAll, Foam::identity(), Foam::Info, Foam::mag(), n, IOobject::NO_READ, IOobject::NO_WRITE, patchi, Foam::reduce(), polyPatch::start(), syncTools::swapBoundaryFaceList(), Foam::type(), Ostream::write(), and Foam::Zero.

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void createCoordinateSystem ( )

protected

Create the co-ordinate system.

Definition at line 262 of file rotorDiskSource.C.

References C::C(), Foam::endl(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, forAll, Foam::gSum(), Foam::Info, Foam::mag(), Foam::nl, Foam::constant::mathematical::pi(), Foam::reduce(), Foam::sqrt(), and Foam::Zero.

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void constructGeometry ( )

protected

Construct geometry.

Definition at line 397 of file rotorDiskSource.C.

References beta(), Foam::constant::universal::c, C::C(), Foam::cos(), forAll, rotorDiskSource::inflowVelocity(), Foam::max(), psi, s(), Foam::sin(), and x.

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Foam::tmp< Foam::vectorField > inflowVelocity ( const volVectorField & U ) const

protected

Return the inlet flow field.

Definition at line 432 of file rotorDiskSource.C.

References Foam::abort(), Foam::FatalError, FatalErrorInFunction, GeometricField< Type, PatchField, GeoMesh >::primitiveField(), rotorDiskSource::rotorDiskSource(), and Foam::Zero.

Referenced by rotorDiskSource::constructGeometry().

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void writeField	(	const word &	name,
		const List< Type > &	values,
		const bool	writeNow = `false`
	)		const

protected

Helper function to write rotor values.

Definition at line 162 of file rotorDiskSourceTemplates.C.

References Foam::abort(), Foam::dimless, Foam::FatalError, FatalErrorInFunction, forAll, IOobject::NO_READ, IOobject::NO_WRITE, tmp< T >::ref(), List< T >::size(), and Foam::Zero.

Referenced by rotorDiskSource::calculate().

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TypeName ( "rotorDisk" )

Runtime type information.

Foam::scalar rhoRef ( ) const

inline

Return the reference density for incompressible case.

Definition at line 30 of file rotorDiskSourceI.H.

References rotorDiskSource::rhoRef_.

Foam::scalar omega ( ) const

inline

Return the rotational speed [rad/s].

Positive anti-clockwise when looking along -ve lift direction

Definition at line 36 of file rotorDiskSourceI.H.

References rotorDiskSource::omega_.

const Foam::List< Foam::point > & x ( ) const

inline

Return the cell centre positions in local rotor frame.

(Cylindrical r, theta, z)

Definition at line 42 of file rotorDiskSourceI.H.

References rotorDiskSource::x_.

const Foam::cylindricalCS & coordSys ( ) const

inline

Return the rotor co-ordinate system (r, theta, z)

Definition at line 48 of file rotorDiskSourceI.H.

References rotorDiskSource::coordSys_.

void calculate	(	const RhoFieldType &	rho,
		const vectorField &	U,
		const scalarField &	thetag,
		vectorField &	force,
		const bool	divideVolume = `true`,
		const bool	output = `true`
	)		const