Basic sub-grid obstacle drag model. Details supplied by J Puttock 2/7/06. More...

Inheritance diagram for basic:

Collaboration diagram for basic:

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

	basic (const dictionary &PDRProperties, const compressible::RASModel &turbulence, const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi)
	Construct from components. More...

virtual	~basic ()
	Destructor. More...

virtual tmp< volSymmTensorField >	Dcu () const
	Return the momentum drag coefficient. More...

virtual tmp< volScalarField >	Gk () const
	Return the momentum drag turbulence generation rate. More...

virtual bool	read (const dictionary &PDRProperties)
	Update properties from given dictionary. More...

void	writeFields () const
	Write fields. More...

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

	declareRunTimeSelectionTable (autoPtr, PDRDragModel, dictionary,(const dictionary &PDRProperties, const compressible::RASModel &turbulence, const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi),(PDRProperties, turbulence, rho, U, phi))

	PDRDragModel (const dictionary &PDRProperties, const compressible::RASModel &turbulence, const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi)
	Construct from components. More...

virtual	~PDRDragModel ()
	Destructor. More...

bool	on () const
	Return true if the drag model is switched on. More...

virtual bool	writeData (Ostream &) const
	Pure virtual writaData function. More...

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

	regIOobject (const IOobject &, const bool isTime=false)
	Construct from IOobject. Optional flag for if IOobject is the. More...

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

	regIOobject (const regIOobject &, bool registerCopy)
	Construct as copy, transferring registry registration to copy. More...

	regIOobject (const word &newName, const regIOobject &, bool registerCopy)
	Construct as copy with new name, transfering registry registration. More...

	regIOobject (const IOobject &, const regIOobject &)
	Construct as copy with new IO parameters. More...

virtual	~regIOobject ()
	Destructor. More...

bool	checkIn ()
	Add object to registry. More...

bool	checkOut ()
	Remove object from registry. More...

bool	ownedByRegistry () const
	Is this object owned by the registry? More...

void	store ()
	Transfer ownership of this object to its registry. More...

void	release ()
	Release ownership of this object from its registry. More...

label	eventNo () const
	Event number at last update. More...

label &	eventNo ()
	Event number at last update. More...

bool	upToDate (const regIOobject &) const
	Return true if up-to-date with respect to given object. More...

bool	upToDate (const regIOobject &, const regIOobject &) const
	Return true if up-to-date with respect to given objects. More...

bool	upToDate (const regIOobject &, const regIOobject &, const regIOobject &) const
	Return true if up-to-date with respect to given objects. More...

bool	upToDate (const regIOobject &, const regIOobject &, const regIOobject &, const regIOobject &) const
	Return true if up-to-date with respect to given objects. More...

void	setUpToDate ()
	Set up to date (obviously) More...

virtual void	rename (const word &newName)
	Rename. More...

Istream &	readStream (const word &)
	Return Istream and check object type against that given. More...

void	close ()
	Close Istream. More...

virtual bool	readData (Istream &)
	Virtual readData function. More...

virtual bool	read ()
	Read object. More...

label	watchIndex () const
	Return file-monitoring handle. More...

label &	watchIndex ()
	Return file-monitoring handle. More...

virtual bool	modified () const
	Return true if the object's file (or files for objectRegistry) More...

virtual bool	readIfModified ()
	Read object if modified (as set by call to modified) More...

virtual bool	writeObject (IOstream::streamFormat, IOstream::versionNumber, IOstream::compressionType) const
	Write using given format, version and compression. More...

virtual bool	write () const
	Write using setting from DB. More...

void	operator= (const IOobject &)

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

	IOobject (const word &name, const fileName &instance, const objectRegistry &registry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true)
	Construct from name, instance, registry, io options. More...

	IOobject (const word &name, const fileName &instance, const fileName &local, const objectRegistry &registry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true)
	Construct from name, instance, local, registry, io options. More...

	IOobject (const fileName &path, const objectRegistry &registry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true)
	Construct from path, registry, io options. More...

Foam::autoPtr< IOobject >	clone () const
	Clone. More...

virtual	~IOobject ()
	Destructor. More...

const Time &	time () const
	Return time. More...

const objectRegistry &	db () const
	Return the local objectRegistry. More...

const word &	name () const
	Return name. More...

const word &	headerClassName () const
	Return name of the class name read from header. More...

string &	note ()
	Return non-constant access to the optional note. More...

const string &	note () const
	Return the optional note. More...

bool &	registerObject ()
	Register object created from this IOobject with registry if true. More...

bool	registerObject () const
	Register object created from this IOobject with registry if true. More...

readOption	readOpt () const

readOption &	readOpt ()

writeOption	writeOpt () const

writeOption &	writeOpt ()

word	group () const
	Return group (extension part of name) More...

word	member () const
	Return member (name without the extension) More...

const fileName &	rootPath () const

const fileName &	caseName () const

const fileName &	instance () const

fileName &	instance ()

const fileName &	local () const

fileName	path () const
	Return complete path. More...

fileName	path (const word &instance, const fileName &local="") const
	Return complete path with alternative instance and local. More...

fileName	objectPath () const
	Return complete path + object name. More...

fileName	filePath () const
	Return complete path + object name if the file exists. More...

bool	readHeader (Istream &)
	Read header. More...

bool	headerOk ()
	Read and check header info. More...

bool	writeHeader (Ostream &) const
	Write header. More...

bool	writeHeader (Ostream &, const word &objectType) const
	Write header. Allow override of type. More...

bool	good () const

bool	bad () const

InfoProxy< IOobject >	info () const
	Return info proxy. More...

void	operator= (const IOobject &)

template<class Name >
Foam::word	groupName (Name name, const word &group)

Additional Inherited Members
Public Types inherited from regIOobject
enum	fileCheckTypes { timeStamp, timeStampMaster, inotify, inotifyMaster }
	Types of communications. More...

Public Types inherited from IOobject
enum	objectState { GOOD, BAD }
	Enumeration defining the valid states of an IOobject. More...

enum	readOption { MUST_READ, MUST_READ_IF_MODIFIED, READ_IF_PRESENT, NO_READ }
	Enumeration defining the read options. More...

enum	writeOption { AUTO_WRITE = 0, NO_WRITE = 1 }
	Enumeration defining the write options. More...

Static Public Member Functions inherited from PDRDragModel
static autoPtr< PDRDragModel >	New (const dictionary &PDRProperties, const compressible::RASModel &turbulence, const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi)
	Return a reference to the selected Xi model. More...

Static Public Member Functions inherited from regIOobject
template<class Type >
static Type &	store (Type *)
	Transfer ownership of the given object pointer to its registry. More...

template<class Type >
static Type &	store (autoPtr< Type > &)
	Transfer ownership of the given object pointer to its registry. More...

Static Public Member Functions inherited from IOobject
static bool	fileNameComponents (const fileName &path, fileName &instance, fileName &local, word &name)
	Split path into instance, local, name components. More...

template<class Name >
static word	groupName (Name name, const word &group)

template<class Stream >
static Stream &	writeBanner (Stream &os, bool noHint=false)
	Write the standard OpenFOAM file/dictionary banner. More...

template<class Stream >
static Stream &	writeDivider (Stream &os)
	Write the standard file section divider. More...

template<class Stream >
static Stream &	writeEndDivider (Stream &os)
	Write the standard end file divider. More...

Static Public Attributes inherited from regIOobject
static const NamedEnum< fileCheckTypes, 4 >	fileCheckTypesNames

static int	fileModificationSkew

static fileCheckTypes	fileModificationChecking

Protected Member Functions inherited from IOobject
Istream *	objectStream ()
	Construct and return an IFstream for the object. More...

Istream *	objectStream (const fileName &)
	Construct and return an IFstream for the object given the. More...

void	setBad (const string &)
	Set the object state to bad. More...

Protected Attributes inherited from PDRDragModel
dictionary	PDRDragModelCoeffs_

const compressible::RASModel &	turbulence_

const volScalarField &	rho_

const volVectorField &	U_

const surfaceScalarField &	phi_

Switch	on_

Static Protected Attributes inherited from regIOobject
static bool	masterOnlyReading = false
	To flag master-only reading of objects. More...

Detailed Description

Basic sub-grid obstacle drag model. Details supplied by J Puttock 2/7/06.

Sub-grid drag term

The resistance term (force per unit of volume) is given by:

$R = -\frac{1}{2} \rho \vert \dwea{\vec{U}} \vert \dwea{\vec{U}}.D$

where:

$ D $ is the tensor field "CR" in $m^{-1}$

This is term is treated implicitly in UEqn.H

Sub-grid turbulence generation

The turbulence source term $G_{R}$ occurring in the $\kappa-\epsilon$ equations for the generation of turbulence due to interaction with unresolved obstacles :

$G_{R} = C_{s}\beta_{\nu} \mu_{eff} A_{w}^{2}(\dwea{\vec{U}}-\dwea{\vec{U}_{s}})^2 + \frac{1}{2} \rho \vert \dwea{\vec{U}} \vert \dwea{\vec{U}}.T.\dwea{\vec{U}}$

where:

$C_{s}$ = 1

$\beta_{\nu}$ is the volume porosity (file "betav").

$\mu_{eff}$ is the effective viscosity.

$A_{w}^{2}$ is the obstacle surface area per unit of volume (file "Aw").

$\dwea{\vec{U}_{s}}$ is the slip velocity and is considered $\frac{1}{2}. \dwea{\vec{U}}$ .

$ T $ is a tensor in the file CT.

The term $G_{R}$ is treated explicitly in the $\kappa-\epsilon$ Eqs in the PDRkEpsilon.C file.

Source files

Definition at line 95 of file basic.H.

Constructor & Destructor Documentation

basic	(	const dictionary &	PDRProperties,
		const compressible::RASModel &	turbulence,
		const volScalarField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	phi
	)

Construct from components.

virtual ~basic ( )

virtual

Destructor.

Member Function Documentation

TypeName ( "basic" )

Runtime type information.

virtual tmp<volSymmTensorField> Dcu ( ) const

virtual

Return the momentum drag coefficient.

Implements PDRDragModel.

virtual tmp<volScalarField> Gk ( ) const

virtual

Return the momentum drag turbulence generation rate.

Implements PDRDragModel.

virtual bool read ( const dictionary & PDRProperties )

virtual

Update properties from given dictionary.

Implements PDRDragModel.

void writeFields ( ) const

virtual

Write fields.

Reimplemented from PDRDragModel.

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

applications/solvers/combustion/PDRFoam/PDRModels/dragModels/basic/basic.H

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation