Basic sub-grid obstacle drag model. Details supplied by J Puttock 2/7/06. More...
Basic sub-grid obstacle drag model. Details supplied by J Puttock 2/7/06.
The resistance term (force per unit of volume) is given by:
where:
is the tensor field "CR" in
This is term is treated implicitly in UEqn.H
Sub-grid turbulence generation
The turbulence source term occurring in the
equations for the generation of turbulence due to interaction with unresolved obstacles :
where:
= 1
is the volume porosity (file "betav").
is the effective viscosity.
is the obstacle surface area per unit of volume (file "Aw").
is the slip velocity and is considered
.
is a tensor in the file CT.
The term is treated explicitly in the
Eqs in the PDRkEpsilon.C file.
Public Member Functions | |
TypeName ("basic") | |
Runtime type information. | |
basic (const dictionary &PDRProperties, const compressible::RASModel &turbulence, const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi) | |
Construct from components. | |
virtual | ~basic () |
virtual tmp< volSymmTensorField > | Dcu () const |
Return the momentum drag coefficient. | |
virtual tmp< volScalarField > | Gk () const |
Return the momentum drag turbulence generation rate. | |
virtual bool | read (const dictionary &PDRProperties) |
Update properties from given dictionary. | |
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TypeName ("PDRDragModel") | |
Runtime type information. | |
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. | |
virtual | ~PDRDragModel () |
bool | on () const |
Return true if the drag model is switched on. | |
virtual bool | writeData (Ostream &) const |
Pure virtual writaData function. | |
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TypeName ("regIOobject") | |
Runtime type information. | |
regIOobject (const IOobject &, const bool isTime=false) | |
Construct from IOobject. Optional flag for if IOobject is the. | |
regIOobject (const regIOobject &) | |
Construct as copy. | |
regIOobject (const regIOobject &, bool registerCopy) | |
Construct as copy, and transferring registry registration to copy. | |
virtual | ~regIOobject () |
bool | checkIn () |
Add object to registry. | |
bool | checkOut () |
Remove object from registry. | |
bool | ownedByRegistry () const |
Is this object owned by the registry? | |
void | store () |
Transfer ownership of this object to its registry. | |
void | release () |
Release ownership of this object from its registry. | |
label | eventNo () const |
Event number at last update. | |
label & | eventNo () |
Event number at last update. | |
bool | upToDate (const word &) const |
Am I uptodate with respect to other regIOobjects. | |
bool | upToDate (const word &, const word &) const |
bool | upToDate (const word &, const word &, const word &) const |
bool | upToDate (const word &, const word &, const word &, const word &) const |
void | setUpToDate () |
Flag me as up to date. | |
virtual void | rename (const word &newName) |
Rename. | |
Istream & | readStream (const word &) |
Return Istream and check object type against that given. | |
void | close () |
Close Istream. | |
virtual bool | readData (Istream &) |
Virtual readData function. | |
virtual bool | read () |
Read object. | |
virtual bool | modified () const |
Return true if the object's file has been modified. | |
virtual bool | readIfModified () |
Read object if modified. | |
virtual bool | writeObject (IOstream::streamFormat, IOstream::versionNumber, IOstream::compressionType) const |
Write using given format, version and compression. | |
virtual bool | write () const |
Write using setting from DB. | |
void | operator= (const IOobject &) |
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TypeName ("IOobject") | |
Runtime type information. | |
IOobject (const word &name, const fileName &instance, const objectRegistry ®istry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true) | |
Construct from name, instance, registry, io options. | |
IOobject (const word &name, const fileName &instance, const fileName &local, const objectRegistry ®istry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true) | |
Construct from name, instance, local, registry, io options. | |
IOobject (const fileName &path, const objectRegistry ®istry, readOption r=NO_READ, writeOption w=NO_WRITE, bool registerObject=true) | |
Construct from path, registry, io options. | |
Foam::autoPtr< IOobject > | clone () const |
Clone. | |
virtual | ~IOobject () |
const Time & | time () const |
Return time. | |
const objectRegistry & | db () const |
Return the local objectRegistry. | |
const word & | name () const |
Return name. | |
const word & | headerClassName () const |
Return name of the class name read from header. | |
string & | note () |
Return non-constant access to the optional note. | |
const string & | note () const |
Return the optional note. | |
bool | registerObject () const |
Register object created from this IOobject with registry if true. | |
readOption | readOpt () const |
readOption & | readOpt () |
writeOption | writeOpt () const |
writeOption & | writeOpt () |
const fileName & | rootPath () const |
const fileName & | caseName () const |
const fileName & | instance () const |
fileName & | instance () |
const fileName & | local () const |
fileName | path () const |
Return complete path. | |
fileName | path (const word &instance, const fileName &local="") const |
Return complete path with alternative instance and local. | |
fileName | objectPath () const |
Return complete path + object name. | |
fileName | filePath () const |
Return complete path + object name if the file exists. | |
bool | readHeader (Istream &) |
Read header. | |
bool | headerOk () |
Read and check header info. | |
bool | writeHeader (Ostream &) const |
Write header. | |
bool | good () const |
bool | bad () const |
InfoProxy< IOobject > | info () const |
Return info proxy. |
Additional Inherited Members | |
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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. | |
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template<class Type > | |
static Type & | store (Type *) |
Transfer ownership of the given object pointer to its registry. | |
template<class Type > | |
static Type & | store (autoPtr< Type > &) |
Transfer ownership of the given object pointer to its registry. | |
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static bool | fileNameComponents (const fileName &path, fileName &instance, fileName &local, word &name) |
Split path into instance, local, name components. | |
template<class Stream > | |
static Stream & | writeBanner (Stream &os, bool noHint=false) |
Write the standard OpenFOAM file/dictionary banner. | |
template<class Stream > | |
static Stream & | writeDivider (Stream &os) |
Write the standard file section divider. | |
template<class Stream > | |
static Stream & | writeEndDivider (Stream &os) |
Write the standard end file divider. | |
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dictionary | PDRDragModelCoeffs_ |
const compressible::RASModel & | turbulence_ |
const volScalarField & | rho_ |
const volVectorField & | U_ |
const surfaceScalarField & | phi_ |
Switch | on_ |
basic | ( | const dictionary & | PDRProperties, |
const compressible::RASModel & | turbulence, | ||
const volScalarField & | rho, | ||
const volVectorField & | U, | ||
const surfaceScalarField & | phi | ||
) |
Construct from components.
|
virtual |
TypeName | ( | "basic" | ) |
Runtime type information.
|
virtual |
Return the momentum drag coefficient.
Implements PDRDragModel.
|
virtual |
Return the momentum drag turbulence generation rate.
Implements PDRDragModel.
|
virtual |
Update properties from given dictionary.
Implements PDRDragModel.