diff --git a/etc/caseDicts/postProcessing/fields/randomise b/etc/caseDicts/postProcessing/fields/randomise new file mode 100644 index 0000000000..8a98fe663d --- /dev/null +++ b/etc/caseDicts/postProcessing/fields/randomise @@ -0,0 +1,17 @@ +/*--------------------------------*- C++ -*----------------------------------*\ +| ========= | | +| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | +| \\ / O peration | Version: dev | +| \\ / A nd | Web: www.OpenFOAM.org | +| \\/ M anipulation | | +\*---------------------------------------------------------------------------*/ + +randomise +{ + // Set the magnitude of the perturbation + magPerturbation ; + + #includeEtc "caseDicts/postProcessing/fields/randomise.cfg" +} + +// ************************************************************************* // diff --git a/etc/caseDicts/postProcessing/fields/randomise.cfg b/etc/caseDicts/postProcessing/fields/randomise.cfg new file mode 100644 index 0000000000..f4a8f49f5a --- /dev/null +++ b/etc/caseDicts/postProcessing/fields/randomise.cfg @@ -0,0 +1,15 @@ +/*--------------------------------*- C++ -*----------------------------------*\ +| ========= | | +| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | +| \\ / O peration | Version: dev | +| \\ / A nd | Web: www.OpenFOAM.org | +| \\/ M anipulation | | +\*---------------------------------------------------------------------------*/ + +type randomise; +libs ("libfieldFunctionObjects.so"); + +executeControl writeTime; +writeControl writeTime; + +// ************************************************************************* // diff --git a/src/postProcessing/functionObjects/field/randomise/randomise.C b/src/postProcessing/functionObjects/field/randomise/randomise.C new file mode 100644 index 0000000000..09e3ef5791 --- /dev/null +++ b/src/postProcessing/functionObjects/field/randomise/randomise.C @@ -0,0 +1,90 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2016 OpenFOAM Foundation + \\/ M anipulation | +------------------------------------------------------------------------------- +License + This file is part of OpenFOAM. + + OpenFOAM is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + OpenFOAM is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with OpenFOAM. If not, see . + +\*---------------------------------------------------------------------------*/ + +#include "randomise.H" +#include "addToRunTimeSelectionTable.H" + +// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * // + +namespace Foam +{ +namespace functionObjects +{ + defineTypeNameAndDebug(randomise, 0); + addToRunTimeSelectionTable(functionObject, randomise, dictionary); +} +} + + +// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * // + +bool Foam::functionObjects::randomise::calc() +{ + bool processed = false; + + processed = processed || calcRandomised(); + processed = processed || calcRandomised(); + processed = processed || calcRandomised(); + processed = processed || calcRandomised(); + processed = processed || calcRandomised(); + + return processed; +} + + +// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // + +Foam::functionObjects::randomise::randomise +( + const word& name, + const Time& runTime, + const dictionary& dict +) +: + fieldExpression(name, runTime, dict) +{ + read(dict); +} + + +// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * // + +Foam::functionObjects::randomise::~randomise() +{} + + +// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * // + +bool Foam::functionObjects::randomise::read(const dictionary& dict) +{ + fieldExpression::read(dict); + + dict.lookup("magPerturbation") >> magPerturbation_; + + return true; +} + + +// ************************************************************************* // diff --git a/src/postProcessing/functionObjects/field/randomise/randomise.H b/src/postProcessing/functionObjects/field/randomise/randomise.H new file mode 100644 index 0000000000..5d7c8b5c3f --- /dev/null +++ b/src/postProcessing/functionObjects/field/randomise/randomise.H @@ -0,0 +1,123 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2016 OpenFOAM Foundation + \\/ M anipulation | +------------------------------------------------------------------------------- +License + This file is part of OpenFOAM. + + OpenFOAM is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + OpenFOAM is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with OpenFOAM. If not, see . + +Class + Foam::functionObjects::randomise + +Group + grpFieldFunctionObjects + +Description + This function object adds a random component to a field, + with a specified perturbation magnitude. + + The operation can be applied to any volume field. + +SeeAlso + Foam::functionObjects::fvMeshFunctionObject + +SourceFiles + randomise.C + +\*---------------------------------------------------------------------------*/ + +#ifndef functionObjects_randomise_H +#define functionObjects_randomise_H + +#include "fieldExpression.H" + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +namespace Foam +{ +namespace functionObjects +{ + +/*---------------------------------------------------------------------------*\ + Class randomise Declaration +\*---------------------------------------------------------------------------*/ + +class randomise +: + public fieldExpression +{ + // Private member data + + //- The magnitude of the purturbation + scalar magPerturbation_; + + + // Private Member Functions + + //- Calculate the randomisenitude of the field and register the result + template + bool calcRandomised(); + + //- Calculate the randomised field and return true if successful + virtual bool calc(); + + +public: + + //- Runtime type information + TypeName("randomise"); + + + // Constructors + + //- Construct from Time and dictionary + randomise + ( + const word& name, + const Time& runTime, + const dictionary& dict + ); + + + //- Destructor + virtual ~randomise(); + + + // Member Functions + + //- Read the randomise data + virtual bool read(const dictionary&); +}; + + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +} // End namespace functionObjects +} // End namespace Foam + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +#ifdef NoRepository + #include "randomiseTemplates.C" +#endif + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +#endif + +// ************************************************************************* // diff --git a/src/postProcessing/functionObjects/field/randomise/randomiseTemplates.C b/src/postProcessing/functionObjects/field/randomise/randomiseTemplates.C new file mode 100644 index 0000000000..cf917c45f7 --- /dev/null +++ b/src/postProcessing/functionObjects/field/randomise/randomiseTemplates.C @@ -0,0 +1,65 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2016 OpenFOAM Foundation + \\/ M anipulation | +------------------------------------------------------------------------------- +License + This file is part of OpenFOAM. + + OpenFOAM is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + OpenFOAM is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with OpenFOAM. If not, see . + +\*---------------------------------------------------------------------------*/ + +#include "volFields.H" +#include "Random.H" + +// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * // + +template +bool Foam::functionObjects::randomise::calcRandomised() +{ + typedef GeometricField VolFieldType; + + if (foundObject(fieldName_)) + { + const VolFieldType& field = lookupObject(fieldName_); + + resultName_ = fieldName_ + "Random"; + + tmp rfieldt(new VolFieldType(field)); + VolFieldType& rfield = rfieldt.ref(); + + Random rand(1234567); + + forAll(field, celli) + { + Type rndPert; + rand.randomise(rndPert); + rndPert = 2.0*rndPert - pTraits::one; + rndPert /= mag(rndPert); + rfield[celli] += magPerturbation_*rndPert; + } + + return store(resultName_, rfieldt); + } + else + { + return false; + } +} + + +// ************************************************************************* //