turbulenceModels/LES/dynamicLagrangian: Added the Lagrangian averaged form of the dynamic Smagorinsky eddy-viscosity SGS model for LES

src/TurbulenceModels/compressible/turbulentFluidThermoModels/turbulentFluidThermoModels.C

@@ -34,6 +34,8 @@ License
 #include "RASModel.H"
 #include "LESModel.H"
 
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
 makeBaseTurbulenceModel
 (
     geometricOneField,
@@ -51,6 +53,11 @@ makeBaseTurbulenceModel
     makeTemplatedTurbulenceModel                                               \
     (fluidThermothermalDiffusivity, LES, Type)
 
+
+// -------------------------------------------------------------------------- //
+// RAS models
+// -------------------------------------------------------------------------- //
+
 #include "SpalartAllmaras.H"
 makeRASModel(SpalartAllmaras);
 
@@ -85,12 +92,19 @@ makeRASModel(LRR);
 makeRASModel(SSG);
 
 
+// -------------------------------------------------------------------------- //
+// LES models
+// -------------------------------------------------------------------------- //
+
 #include "Smagorinsky.H"
 makeLESModel(Smagorinsky);
 
 #include "WALE.H"
 makeLESModel(WALE);
 
+#include "dynamicLagrangian.H"
+makeLESModel(dynamicLagrangian);
+
 #include "kEqn.H"
 makeLESModel(kEqn);
 

src/TurbulenceModels/incompressible/turbulentTransportModels/turbulentTransportModels.C

@@ -32,6 +32,8 @@ License
 #include "RASModel.H"
 #include "LESModel.H"
 
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
 makeBaseTurbulenceModel
 (
     geometricOneField,
@@ -49,6 +51,11 @@ makeBaseTurbulenceModel
     makeTemplatedTurbulenceModel                                               \
     (transportModelIncompressibleTurbulenceModel, LES, Type)
 
+
+// -------------------------------------------------------------------------- //
+// RAS models
+// -------------------------------------------------------------------------- //
+
 #include "SpalartAllmaras.H"
 makeRASModel(SpalartAllmaras);
 
@@ -80,12 +87,19 @@ makeRASModel(LRR);
 makeRASModel(SSG);
 
 
+// -------------------------------------------------------------------------- //
+// LES models
+// -------------------------------------------------------------------------- //
+
 #include "Smagorinsky.H"
 makeLESModel(Smagorinsky);
 
 #include "WALE.H"
 makeLESModel(WALE);
 
+#include "dynamicLagrangian.H"
+makeLESModel(dynamicLagrangian);
+
 #include "kEqn.H"
 makeLESModel(kEqn);
 

src/TurbulenceModels/turbulenceModels/LES/dynamicKEqn/dynamicKEqn.H

@@ -61,7 +61,6 @@ SourceFiles
 
 #include "LESeddyViscosity.H"
 #include "simpleFilter.H"
-#include "LESfilter.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 

src/TurbulenceModels/turbulenceModels/LES/dynamicLagrangian/dynamicLagrangian.C

@@ -0,0 +1,229 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2015 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 <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "dynamicLagrangian.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace LESModels
+{
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+template<class BasicTurbulenceModel>
+void dynamicLagrangian<BasicTurbulenceModel>::correctNut
+(
+    const tmp<volTensorField>& gradU
+)
+{
+    this->nut_ = (flm_/fmm_)*sqr(this->delta())*mag(dev(symm(gradU)));
+    this->nut_.correctBoundaryConditions();
+}
+
+
+template<class BasicTurbulenceModel>
+void dynamicLagrangian<BasicTurbulenceModel>::correctNut()
+{
+    correctNut(fvc::grad(this->U_));
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class BasicTurbulenceModel>
+dynamicLagrangian<BasicTurbulenceModel>::dynamicLagrangian
+(
+    const alphaField& alpha,
+    const rhoField& rho,
+    const volVectorField& U,
+    const surfaceScalarField& alphaRhoPhi,
+    const surfaceScalarField& phi,
+    const transportModel& transport,
+    const word& propertiesName,
+    const word& type
+)
+:
+    LESeddyViscosity<BasicTurbulenceModel>
+    (
+        type,
+        alpha,
+        rho,
+        U,
+        alphaRhoPhi,
+        phi,
+        transport,
+        propertiesName
+    ),
+
+    flm_
+    (
+        IOobject
+        (
+            IOobject::groupName("flm", this->U_.group()),
+            this->runTime_.timeName(),
+            this->mesh_,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        this->mesh_
+    ),
+    fmm_
+    (
+        IOobject
+        (
+            IOobject::groupName("fmm", this->U_.group()),
+            this->runTime_.timeName(),
+            this->mesh_,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        this->mesh_
+    ),
+    theta_
+    (
+        dimensioned<scalar>::lookupOrAddToDict
+        (
+            "theta",
+            this->coeffDict_,
+            1.5
+        )
+    ),
+
+    simpleFilter_(U.mesh()),
+    filterPtr_(LESfilter::New(U.mesh(), this->coeffDict())),
+    filter_(filterPtr_()),
+
+    flm0_("flm0", flm_.dimensions(), 0.0),
+    fmm0_("fmm0", fmm_.dimensions(), VSMALL)
+{
+    if (type == typeName)
+    {
+        correctNut();
+        this->printCoeffs(type);
+    }
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class BasicTurbulenceModel>
+bool dynamicLagrangian<BasicTurbulenceModel>::read()
+{
+    if (LESeddyViscosity<BasicTurbulenceModel>::read())
+    {
+        filter_.read(this->coeffDict());
+        theta_.readIfPresent(this->coeffDict());
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+template<class BasicTurbulenceModel>
+void dynamicLagrangian<BasicTurbulenceModel>::correct()
+{
+    if (!this->turbulence_)
+    {
+        return;
+    }
+
+    // Local references
+    const alphaField& alpha = this->alpha_;
+    const rhoField& rho = this->rho_;
+    const surfaceScalarField& alphaRhoPhi = this->alphaRhoPhi_;
+    const volVectorField& U = this->U_;
+    volScalarField& nut = this->nut_;
+
+    LESeddyViscosity<BasicTurbulenceModel>::correct();
+
+    tmp<volTensorField> tgradU(fvc::grad(U));
+    const volTensorField& gradU = tgradU();
+
+    volSymmTensorField S(dev(symm(gradU())));
+    volScalarField magS(mag(S));
+
+    volVectorField Uf(filter_(U));
+    volSymmTensorField Sf(dev(symm(fvc::grad(Uf))));
+    volScalarField magSf(mag(Sf));
+
+    volSymmTensorField L(dev(filter_(sqr(U)) - (sqr(filter_(U)))));
+    volSymmTensorField M
+    (
+        2.0*sqr(this->delta())*(filter_(magS*S) - 4.0*magSf*Sf)
+    );
+
+    volScalarField invT
+    (
+        (1.0/(theta_.value()*this->delta()))*pow(flm_*fmm_, 1.0/8.0)
+    );
+
+    volScalarField LM(L && M);
+
+    fvScalarMatrix flmEqn
+    (
+        fvm::ddt(flm_)
+      + fvm::div(phi(), flm_)
+     ==
+        invT*LM
+      - fvm::Sp(invT, flm_)
+    );
+
+    flmEqn.relax();
+    flmEqn.solve();
+
+    bound(flm_, flm0_);
+
+    volScalarField MM(M && M);
+
+    fvScalarMatrix fmmEqn
+    (
+        fvm::ddt(fmm_)
+      + fvm::div(phi(), fmm_)
+     ==
+        invT*MM
+      - fvm::Sp(invT, fmm_)
+    );
+
+    fmmEqn.relax();
+    fmmEqn.solve();
+
+    bound(fmm_, fmm0_);
+
+    correctNut(gradU);
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace LESModels
+} // End namespace Foam
+
+// ************************************************************************* //

src/TurbulenceModels/turbulenceModels/LES/dynamicLagrangian/dynamicLagrangian.H

@@ -0,0 +1,173 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2015 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 <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::LESModels::dynamicLagrangian
+
+Group
+    grpLESTurbulence
+
+Description
+    Dynamic SGS model with Lagrangian averaging
+
+    Reference:
+    \verbatim
+        Meneveau, C., Lund, T. S., & Cabot, W. H. (1996).
+        A Lagrangian dynamic subgrid-scale model of turbulence.
+        Journal of Fluid Mechanics, 319, 353-385.
+    \endverbatim
+
+SourceFiles
+    dynamicLagrangian.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef dynamicLagrangian_H
+#define dynamicLagrangian_H
+
+#include "LESeddyViscosity.H"
+#include "simpleFilter.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace LESModels
+{
+
+/*---------------------------------------------------------------------------*\
+                       Class dynamicLagrangian Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class BasicTurbulenceModel>
+class dynamicLagrangian
+:
+    public LESeddyViscosity<BasicTurbulenceModel>
+{
+    // Private Member Functions
+
+        // Disallow default bitwise copy construct and assignment
+        dynamicLagrangian(const dynamicLagrangian&);
+        dynamicLagrangian& operator=(const dynamicLagrangian&);
+
+
+protected:
+
+    // Protected data
+
+        volScalarField flm_;
+        volScalarField fmm_;
+
+        dimensionedScalar theta_;
+
+        simpleFilter simpleFilter_;
+        autoPtr<LESfilter> filterPtr_;
+        LESfilter& filter_;
+
+        dimensionedScalar flm0_;
+        dimensionedScalar fmm0_;
+
+
+    // Protected Member Functions
+
+        //- Update sub-grid eddy-viscosity
+        void correctNut(const tmp<volTensorField>& gradU);
+
+        virtual void correctNut();
+
+
+public:
+
+    typedef typename BasicTurbulenceModel::alphaField alphaField;
+    typedef typename BasicTurbulenceModel::rhoField rhoField;
+    typedef typename BasicTurbulenceModel::transportModel transportModel;
+
+    //- Runtime type information
+    TypeName("dynamicLagrangian");
+
+
+    // Constructors
+
+        //- Construct from components
+        dynamicLagrangian
+        (
+            const alphaField& alpha,
+            const rhoField& rho,
+            const volVectorField& U,
+            const surfaceScalarField& alphaRhoPhi,
+            const surfaceScalarField& phi,
+            const transportModel& transport,
+            const word& propertiesName = turbulenceModel::propertiesName,
+            const word& type = typeName
+        );
+
+
+    //- Destructor
+    virtual ~dynamicLagrangian()
+    {}
+
+
+    // Member Functions
+
+        //- Read model coefficients if they have changed
+        virtual bool read();
+
+        //- Return SGS kinetic energy
+        tmp<volScalarField> k(const tmp<volTensorField>& gradU) const
+        {
+            return
+                pow(2.0*flm_/fmm_, 2.0/3.0)
+              * pow(this->Ce_, -2.0/3.0)
+              * sqr(this->delta())*magSqr(dev(symm(gradU)));
+        }
+
+        //- Return SGS kinetic energy
+        virtual tmp<volScalarField> k() const
+        {
+            return k(fvc::grad(this->U_));
+        }
+
+        //- Return the effective diffusivity for k
+        tmp<volScalarField> DkEff() const
+        {
+            return tmp<volScalarField>
+            (
+                new volScalarField("DkEff", this->nut_ + this->nu())
+            );
+        }
+
+        //- Correct Eddy-Viscosity and related properties
+        virtual void correct();
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace LESModels
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //