randomise Class Reference

Adds a random component to an input field, with a specified perturbation magnitude. More...

Inheritance diagram for randomise:
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Collaboration diagram for randomise:
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Public Member Functions

 TypeName ("randomise")
 Runtime type information. More...
 
 randomise (const word &name, const Time &runTime, const dictionary &dict)
 Construct from Time and dictionary. More...
 
virtual ~randomise ()=default
 Destructor. More...
 
virtual bool read (const dictionary &dict)
 Read the randomise data. More...
 
- Public Member Functions inherited from fieldExpression
 TypeName ("fieldExpression")
 Runtime type information. More...
 
 fieldExpression (const word &name, const Time &runTime, const dictionary &dict, const word &fieldName=word::null, const word &resultName=word::null)
 Construct from Time and dictionary. More...
 
 fieldExpression (const fieldExpression &)=delete
 No copy construct. More...
 
void operator= (const fieldExpression &)=delete
 No copy assignment. More...
 
virtual ~fieldExpression ()=default
 Destructor. More...
 
virtual bool execute ()
 Calculate the result field. More...
 
virtual bool write ()
 Write the result field. More...
 
virtual bool clear ()
 Clear the result field from the objectRegistry. More...
 
- Public Member Functions inherited from fvMeshFunctionObject
 TypeName ("fvMeshFunctionObject")
 Runtime type information. More...
 
 fvMeshFunctionObject (const word &name, const Time &runTime, const dictionary &dict)
 Construct from Time and dictionary. More...
 
 fvMeshFunctionObject (const word &name, const objectRegistry &obr, const dictionary &dict)
 Construct from the region objectRegistry and dictionary. More...
 
virtual ~fvMeshFunctionObject ()=default
 Destructor. More...
 
- Public Member Functions inherited from regionFunctionObject
 TypeName ("regionFunctionObject")
 Runtime type information. More...
 
 regionFunctionObject (const word &name, const Time &runTime, const dictionary &dict)
 Construct from Time and dictionary. More...
 
 regionFunctionObject (const word &name, const objectRegistry &obr, const dictionary &dict)
 Construct from the region objectRegistry and dictionary. More...
 
virtual ~regionFunctionObject ()=default
 Destructor. More...
 
template<class ObjectType >
const ObjectType * lookupObjectPtr (const word &fieldName) const
 Deprecated(2018-10) More...
 
template<class ObjectType >
ObjectType * lookupObjectRefPtr (const word &fieldName) const
 Deprecated(2018-10) More...
 
- Public Member Functions inherited from stateFunctionObject
 stateFunctionObject (const word &name, const Time &runTime)
 Construct from components. More...
 
virtual ~stateFunctionObject ()=default
 Destructor. More...
 
dictionarypropertyDict ()
 Return access to the property dictionary. More...
 
bool foundProperty (const word &entryName) const
 Return true if the property exists. More...
 
void clearTrigger ()
 Remove the trigger index from the properties. More...
 
label getTrigger () const
 Get the current trigger index. More...
 
bool setTrigger (const label triggeri, bool increaseOnly=true)
 Set the trigger index. Normally only if greater than current. More...
 
bool getDict (const word &entryName, dictionary &dict) const
 Set dictionary, return true if set. More...
 
bool getObjectDict (const word &objectName, const word &entryName, dictionary &dict) const
 Set dictionary from named object, return true if set. More...
 
template<class Type >
Type getProperty (const word &entryName, const Type &defaultValue=Type(Zero)) const
 Retrieve generic property. More...
 
template<class Type >
bool getProperty (const word &entryName, Type &value) const
 Set generic property, return true if set. More...
 
template<class Type >
void setProperty (const word &entryName, const Type &value)
 Add generic property. More...
 
template<class Type >
Type getObjectProperty (const word &objectName, const word &entryName, const Type &defaultValue=Type(Zero)) const
 Retrieve generic property from named object. More...
 
template<class Type >
bool getObjectProperty (const word &objectName, const word &entryName, Type &value) const
 Set generic property from named object, return true if set. More...
 
template<class Type >
void setObjectProperty (const word &objectName, const word &entryName, const Type &value)
 Add generic property from named object. More...
 
template<class Type >
void setResult (const word &entryName, const Type &value)
 Add result. More...
 
template<class Type >
void setObjectResult (const word &objectName, const word &entryName, const Type &value)
 Add result from named object. More...
 
template<class Type >
Type getResult (const word &entryName, const Type &defaultValue=Type(Zero)) const
 Retrieve result. More...
 
template<class Type >
Type getObjectResult (const word &objectName, const word &entryName, const Type &defaultValue=Type(Zero)) const
 Retrieve result from named object. More...
 
template<class Type >
bool getObjectResult (const word &objectName, const word &entryName, Type &value) const
 Set result from named object, return true if set. More...
 
word resultType (const word &entryName) const
 Retrieve the result type. More...
 
word objectResultType (const word &objectName, const word &entryName) const
 Return the type of result. More...
 
wordList objectResultEntries () const
 Retrieve the result entries. More...
 
wordList objectResultEntries (const word &objectName) const
 Return result entries for named object. More...
 
void writeResultEntries (Ostream &os) const
 Write the results entries for all objects to stream. More...
 
void writeResultEntries (const word &objectName, Ostream &os) const
 Write the results entries for named object to stream. More...
 
void writeAllResultEntries (Ostream &os) const
 Write the results entries for all objects to stream. More...
 
- Public Member Functions inherited from timeFunctionObject
 timeFunctionObject (const word &name, const Time &runTime)
 Construct from Time. More...
 
virtual ~timeFunctionObject ()=default
 Destructor. More...
 
const Timetime () const
 Return time database. More...
 
objectRegistrystoredObjects ()
 
const objectRegistrystoredObjects () const
 
- Public Member Functions inherited from functionObject
 declareRunTimeSelectionTable (autoPtr, functionObject, dictionary,(const word &name, const Time &runTime, const dictionary &dict),(name, runTime, dict))
 
 functionObject (const word &name, const bool withNamePrefix=defaultUseNamePrefix)
 Construct from components. More...
 
autoPtr< functionObjectclone () const
 Return clone. More...
 
virtual ~functionObject ()=default
 Destructor. More...
 
virtual const wordtype () const =0
 Runtime type information. More...
 
const wordname () const noexcept
 Return the name of this functionObject. More...
 
bool useNamePrefix () const noexcept
 Return the flag for adding a scoping name prefix. More...
 
bool useNamePrefix (bool on) noexcept
 Modify the flag for adding a scoping name prefix. More...
 
virtual bool execute (const label subIndex)
 Execute using the specified subIndex. More...
 
virtual bool end ()
 Called when Time::run() determines that the time-loop exits. More...
 
virtual bool adjustTimeStep ()
 Called at the end of Time::adjustDeltaT() if adjustTime is true. More...
 
virtual bool filesModified () const
 Did any file get changed during execution? More...
 
virtual void updateMesh (const mapPolyMesh &mpm)
 Update for changes of mesh. More...
 
virtual void movePoints (const polyMesh &mesh)
 Update for changes of mesh. More...
 
- Public Member Functions inherited from volRegion
 TypeName ("volRegion")
 Run-time type information. More...
 
 volRegion (const fvMesh &mesh, const dictionary &dict)
 Construct from fvMesh and dictionary. More...
 
virtual ~volRegion ()=default
 Destructor. More...
 
regionTypes regionType () const noexcept
 The region type. More...
 
const labelListcellIDs () const
 Return the local list of cell IDs. More...
 
label nCells () const
 Return the total number of cells selected in the region. More...
 
scalar V () const
 Return total volume of the selected region. More...
 
bool update ()
 Update the cached values as required. More...
 
virtual void updateMesh (const mapPolyMesh &)
 Update for changes of mesh. More...
 
virtual void movePoints (const polyMesh &)
 Update for mesh point-motion. More...
 

Protected Member Functions

virtual bool calc ()
 Calculate the randomised field and return true if successful. More...
 
 randomise (const randomise &)=delete
 No copy construct. More...
 
void operator= (const randomise &)=delete
 No copy assignment. More...
 
- Protected Member Functions inherited from fieldExpression
void setResultName (const word &typeName, const word &defaultArg)
 Set the name of result field. More...
 
template<class Type >
bool foundObject (const word &name, const bool verbose=true) const
 Return true if required objects are found. More...
 
- Protected Member Functions inherited from fvMeshFunctionObject
 fvMeshFunctionObject (const fvMeshFunctionObject &)=delete
 No copy construct. More...
 
void operator= (const fvMeshFunctionObject &)=delete
 No copy assignment. More...
 
- Protected Member Functions inherited from regionFunctionObject
virtual const objectRegistryobr () const
 The region or sub-region registry being used. More...
 
template<class ObjectType >
bool foundObject (const word &fieldName) const
 Find object (eg, a field) in the (sub) objectRegistry. More...
 
template<class ObjectType >
const ObjectType * cfindObject (const word &fieldName) const
 
template<class ObjectType >
const ObjectType * findObject (const word &fieldName) const
 
template<class ObjectType >
ObjectType * findObject (const word &fieldName)
 
template<class ObjectType >
ObjectType * getObjectPtr (const word &fieldName) const
 
template<class ObjectType >
const ObjectType & lookupObject (const word &fieldName) const
 Lookup and return object (eg, a field) from the (sub) objectRegistry. More...
 
template<class ObjectType >
ObjectType & lookupObjectRef (const word &fieldName) const
 Lookup and return object (eg, a field) from the (sub) objectRegistry. More...
 
template<class ObjectType >
bool store (word &fieldName, const tmp< ObjectType > &tfield, bool cacheable=false)
 Store the field in the (sub) objectRegistry under the given name. More...
 
template<class ObjectType >
bool storeInDb (const word &fieldName, const tmp< ObjectType > &tfield, const objectRegistry &obr)
 Store the field in an optional objectRegistry under the given name. More...
 
bool writeObject (const word &fieldName)
 Write field if present in the (sub) objectRegistry. More...
 
bool clearObject (const word &fieldName)
 Clear field from the (sub) objectRegistry if present. More...
 
void clearObjects (const wordList &objNames)
 Clear fields from the (sub) objectRegistry if present. More...
 
 regionFunctionObject (const regionFunctionObject &)=delete
 No copy construct. More...
 
void operator= (const regionFunctionObject &)=delete
 No copy assignment. More...
 
- Protected Member Functions inherited from stateFunctionObject
const functionObjects::propertiesstateDict () const
 Return a const reference to the state dictionary. More...
 
functionObjects::propertiesstateDict ()
 Return non-const access to the state dictionary. More...
 
 stateFunctionObject (const stateFunctionObject &)=delete
 No copy construct. More...
 
void operator= (const stateFunctionObject &)=delete
 No copy assignment. More...
 
- Protected Member Functions inherited from timeFunctionObject
void clearOutputObjects (const wordList &objNames)
 Remove specified items from "functionObjectObjects". More...
 
 timeFunctionObject (const timeFunctionObject &)=delete
 No copy construct. More...
 
void operator= (const timeFunctionObject &)=delete
 No copy assignment. More...
 
- Protected Member Functions inherited from functionObject
word scopedName (const word &name) const
 Return a scoped (prefixed) name. More...
 
- Protected Member Functions inherited from volRegion
bool useAllCells () const noexcept
 Use all cells, not the cellIDs. More...
 
void writeFileHeader (const writeFile &wf, Ostream &file) const
 Output file header information. More...
 

Additional Inherited Members

- Public Types inherited from volRegion
enum  regionTypes { vrtAll = 0, vrtCellSet, vrtCellZone }
 Region type enumeration. More...
 
- Static Public Member Functions inherited from functionObject
static autoPtr< functionObjectNew (const word &name, const Time &runTime, const dictionary &dict)
 Select from dictionary, based on its "type" entry. More...
 
- Public Attributes inherited from functionObject
bool log
 Flag to write log into Info. More...
 
- Static Public Attributes inherited from functionObject
static int debug
 Flag to execute debug content. More...
 
static bool postProcess
 Global post-processing mode switch. More...
 
static bool defaultUseNamePrefix
 Global default for useNamePrefix. More...
 
static word outputPrefix
 Directory prefix. More...
 
- Static Public Attributes inherited from volRegion
static const Enum< regionTypesregionTypeNames_
 Region type names. More...
 
- Protected Attributes inherited from fieldExpression
word fieldName_
 Name of field to process. More...
 
word resultName_
 Name of result field. More...
 
autoPtr< Detail::zoneSubSetzoneSubSetPtr_
 Sub-set mesh. More...
 
- Protected Attributes inherited from fvMeshFunctionObject
const fvMeshmesh_
 Reference to the fvMesh. More...
 
- Protected Attributes inherited from regionFunctionObject
word subRegistryName_
 Name for alternative object registry. More...
 
const objectRegistryobr_
 Reference to the region objectRegistry. More...
 
const objectRegistryobrPtr_
 Pointer to alternative (eg, sub-region) objectRegistry. More...
 
- Protected Attributes inherited from timeFunctionObject
const Timetime_
 Reference to the time database. More...
 
- Protected Attributes inherited from volRegion
regionTypes regionType_
 Region type. More...
 
word regionName_
 Region name (cellSet, cellZone, ...) More...
 
label regionID_
 Region ID (zone ID, ...) More...
 

Detailed Description

Adds a random component to an input field, with a specified perturbation magnitude.

Operands:

Operand Type Location
input vol<Type>Field $FOAM_CASE/<time>/<inpField>
output file - -
output field vol<Type>Field $FOAM_CASE/<time>/<outField>

where <Type>=Scalar/Vector/SphericalTensor/SymmTensor/Tensor.

Usage
Minimal example by using system/controlDict.functions:
randomise1
{
    // Mandatory entries (unmodifiable)
    type            randomise;
    libs            (fieldFunctionObjects);

    // Mandatory entries (runtime modifiable)
    magPerturbation 0.1;

    // Mandatory (inherited) entries (runtime modifiable)
    field           <field>;

    // Optional (inherited) entries
    ...
}

where the entries mean:

Property Description Type Req'd Dflt
type Type name: randomise word yes -
libs Library name: fieldFunctionObjects word yes -
regionType Selection type: all/cellSet/cellZone word no all
magPerturbation The magnitude of the perturbation scalar yes -
field Name of the operand field word yes -
name Name of cellSet/cellZone if required word conditional -

The inherited entries are elaborated in:

Minimal example by using the postProcess utility:

        postProcess -func "randomise(<field>)"
See also
Source files

Definition at line 172 of file randomise.H.

Constructor & Destructor Documentation

◆ randomise() [1/2]

randomise ( const randomise )
protecteddelete

No copy construct.

◆ randomise() [2/2]

randomise ( const word name,
const Time runTime,
const dictionary dict 
)

Construct from Time and dictionary.

Definition at line 120 of file randomise.C.

References dict, and Foam::read().

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◆ ~randomise()

virtual ~randomise ( )
virtualdefault

Destructor.

Member Function Documentation

◆ calc()

bool calc ( )
protectedvirtual

Calculate the randomised field and return true if successful.

Implements fieldExpression.

Definition at line 100 of file randomise.C.

References volRegion::update().

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◆ operator=()

void operator= ( const randomise )
protecteddelete

No copy assignment.

◆ TypeName()

TypeName ( "randomise"  )

Runtime type information.

◆ read()

bool read ( const dictionary dict)
virtual

Read the randomise data.

Reimplemented from volRegion.

Definition at line 135 of file randomise.C.

References dict, fieldExpression::read(), and volRegion::read().

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