objectiveNutSqr.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
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    Copyright (C) 2007-2020 PCOpt/NTUA
    Copyright (C) 2013-2020 FOSS GP
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    under the terms of the GNU General Public License as published by
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    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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#include "objectiveNutSqr.H"
#include "createZeroField.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
namespace objectives
{
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
defineTypeNameAndDebug(objectiveNutSqr, 1);
addToRunTimeSelectionTable
(
    objectiveIncompressible,
    objectiveNutSqr,
    dictionary
);
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
objectiveNutSqr::objectiveNutSqr
(
    const fvMesh& mesh,
    const dictionary& dict,
    const word& adjointSolverName,
    const word& primalSolverName
)
:
    objectiveIncompressible(mesh, dict, adjointSolverName, primalSolverName),
    zones_
    (
        mesh_.cellZones().indices(this->dict().get<wordRes>("zones"))
    )
{
    // Allocate source term for the adjoint turbulence model
    dJdTMvar1Ptr_.reset
    (
        createZeroFieldPtr<scalar>
        (
            mesh_,
            "ATMSource",
            (dimless/dimTime/dimTime)
        )
    );
    // Allocate term to be added to volume-based sensitivity derivatives
    divDxDbMultPtr_.reset
    (
        createZeroFieldPtr<scalar>
        (
            mesh_,
            ("divDxdbMult"+type()) ,
            //variable dimensions!!
            //Dummy zeroes. Only the internalField will be used
            dimless
        )
    );
    // set file pointer
    //objFunctionFilePtr_ = new OFstream(objFunctionFolder_/type());
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
scalar objectiveNutSqr::J()
{
    J_ = Zero;
 
    const autoPtr<incompressible::RASModelVariables>&
       turbVars = vars_.RASModelVariables();
    const volScalarField& nut = turbVars->nutRefInst();
 
    //scalar zoneVol(Zero);
    for (const label zI : zones_)
    {
        const cellZone& zoneI = mesh_.cellZones()[zI];
        for (const label cellI : zoneI)
        {
            J_ += sqr(nut[cellI])*(mesh_.V()[cellI]);
            //zoneVol += mesh_.V()[cellI];
        }
    }
    reduce(J_, sumOp<scalar>());
    //reduce(zoneVol, sumOp<scalar>());
 
    return J_;
}
 
 
void objectiveNutSqr::update_dJdTMvar1()
{
    const autoPtr<incompressible::RASModelVariables>&
       turbVars = vars_.RASModelVariables();
    const singlePhaseTransportModel& lamTransp = vars_.laminarTransport();
    const volScalarField& nut = turbVars->nutRef();
 
    tmp<volScalarField> tnutJacobian = turbVars->nutJacobianVar1(lamTransp);
    const volScalarField& nutJacobian = tnutJacobian();
 
    volScalarField& dJdTMvar1 = dJdTMvar1Ptr_();
 
    for (const label zI : zones_)
    {
        const cellZone& zoneI = mesh_.cellZones()[zI];
        for (const label cellI : zoneI)
        {
            dJdTMvar1[cellI] = 2.*nut[cellI]*nutJacobian[cellI];
        }
    }
}
 
 
void objectiveNutSqr::update_divDxDbMultiplier()
{
    const autoPtr<incompressible::RASModelVariables>&
       turbVars = vars_.RASModelVariables();
    const volScalarField& nut = turbVars->nutRef();
 
    volScalarField& divDxDbMult = divDxDbMultPtr_();
 
    for (const label zI : zones_)
    {
        const cellZone& zoneI = mesh_.cellZones()[zI];
        for (const label cellI : zoneI)
        {
            divDxDbMult[cellI] = sqr(nut[cellI]);
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace objectives
} // End namespace Foam
 
// ************************************************************************* //