functionObjects::randomise: New functionObject to create a field with a random perturbation
This commit is contained in:
Henry Weller
parent
1940cf8413
commit
9d71c18fcf
17
etc/caseDicts/postProcessing/fields/randomise
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17
etc/caseDicts/postProcessing/fields/randomise
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@ -0,0 +1,17 @@
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/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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randomise
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{
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// Set the magnitude of the perturbation
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magPerturbation <scalar>;
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#includeEtc "caseDicts/postProcessing/fields/randomise.cfg"
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}
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// ************************************************************************* //
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15
etc/caseDicts/postProcessing/fields/randomise.cfg
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15
etc/caseDicts/postProcessing/fields/randomise.cfg
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/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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type randomise;
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libs ("libfieldFunctionObjects.so");
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executeControl writeTime;
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writeControl writeTime;
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// ************************************************************************* //
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@ -0,0 +1,90 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "randomise.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionObjects
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{
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defineTypeNameAndDebug(randomise, 0);
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addToRunTimeSelectionTable(functionObject, randomise, dictionary);
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}
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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bool Foam::functionObjects::randomise::calc()
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{
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bool processed = false;
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processed = processed || calcRandomised<scalar>();
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processed = processed || calcRandomised<vector>();
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processed = processed || calcRandomised<sphericalTensor>();
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processed = processed || calcRandomised<symmTensor>();
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processed = processed || calcRandomised<tensor>();
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return processed;
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::functionObjects::randomise::randomise
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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)
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:
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fieldExpression(name, runTime, dict)
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{
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read(dict);
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::functionObjects::randomise::~randomise()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::functionObjects::randomise::read(const dictionary& dict)
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{
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fieldExpression::read(dict);
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dict.lookup("magPerturbation") >> magPerturbation_;
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return true;
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}
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// ************************************************************************* //
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123
src/postProcessing/functionObjects/field/randomise/randomise.H
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123
src/postProcessing/functionObjects/field/randomise/randomise.H
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@ -0,0 +1,123 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::functionObjects::randomise
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Group
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grpFieldFunctionObjects
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Description
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This function object adds a random component to a field,
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with a specified perturbation magnitude.
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The operation can be applied to any volume field.
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SeeAlso
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Foam::functionObjects::fvMeshFunctionObject
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SourceFiles
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randomise.C
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\*---------------------------------------------------------------------------*/
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#ifndef functionObjects_randomise_H
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#define functionObjects_randomise_H
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#include "fieldExpression.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionObjects
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{
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/*---------------------------------------------------------------------------*\
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Class randomise Declaration
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\*---------------------------------------------------------------------------*/
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class randomise
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:
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public fieldExpression
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{
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// Private member data
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//- The magnitude of the purturbation
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scalar magPerturbation_;
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// Private Member Functions
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//- Calculate the randomisenitude of the field and register the result
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template<class Type>
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bool calcRandomised();
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//- Calculate the randomised field and return true if successful
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virtual bool calc();
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public:
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//- Runtime type information
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TypeName("randomise");
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// Constructors
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//- Construct from Time and dictionary
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randomise
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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);
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//- Destructor
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virtual ~randomise();
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// Member Functions
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//- Read the randomise data
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virtual bool read(const dictionary&);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace functionObjects
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#ifdef NoRepository
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#include "randomiseTemplates.C"
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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@ -0,0 +1,65 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2016 OpenFOAM Foundation
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\\/ M anipulation |
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||||
-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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||||
(at your option) any later version.
|
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|
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
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for more details.
|
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|
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You should have received a copy of the GNU General Public License
|
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "volFields.H"
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#include "Random.H"
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class Type>
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bool Foam::functionObjects::randomise::calcRandomised()
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{
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typedef GeometricField<Type, fvPatchField, volMesh> VolFieldType;
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if (foundObject<VolFieldType>(fieldName_))
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{
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const VolFieldType& field = lookupObject<VolFieldType>(fieldName_);
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resultName_ = fieldName_ + "Random";
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tmp<VolFieldType> rfieldt(new VolFieldType(field));
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VolFieldType& rfield = rfieldt.ref();
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Random rand(1234567);
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forAll(field, celli)
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{
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Type rndPert;
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rand.randomise(rndPert);
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rndPert = 2.0*rndPert - pTraits<Type>::one;
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rndPert /= mag(rndPert);
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rfield[celli] += magPerturbation_*rndPert;
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}
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return store(resultName_, rfieldt);
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}
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else
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{
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return false;
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}
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}
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// ************************************************************************* //
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