ReducedUnsteadyNSTurb.H

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 * In real Time Highly Advanced Computational Applications for Finite Volumes
 * Copyright (C) 2017 by the ITHACA-FV authors
-------------------------------------------------------------------------------
License
    This file is part of ITHACA-FV
    ITHACA-FV is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    ITHACA-FV 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 Lesser General Public License for more details.
    You should have received a copy of the GNU Lesser General Public License
    along with ITHACA-FV. If not, see <http://www.gnu.org/licenses/>.
Class
    ReducedUnsteadyNSTurb
Description
    A reduced problem for the unsteady turbulent NS equations
SourceFiles
    ReducedUnsteadyNSTurb.C
\*---------------------------------------------------------------------------*/
 
 
#ifndef ReducedUnsteadyNSTurb_H
#define ReducedUnsteadyNSTurb_H
 
#include "fvCFD.H"
#include "IOmanip.H"
#include "ReducedSteadyNS.H"
#include "ReducedUnsteadyNS.H"
#include "UnsteadyNSTurb.H"
#include <Eigen/Dense>
#include <unsupported/Eigen/NonLinearOptimization>
#include <unsupported/Eigen/NumericalDiff>
 
 
struct newtonUnsteadyNSTurbSUP: public newton_argument<double>
{
    public:
        newtonUnsteadyNSTurbSUP() {}
        newtonUnsteadyNSTurbSUP(int Nx, int Ny,
                                UnsteadyNSTurb& problem): newton_argument<double>(Nx, Ny),
            problem(&problem),
            Nphi_u(problem.NUmodes + problem.liftfield.size() + problem.NSUPmodes),
            nphiNut(problem.nNutModes),
            Nphi_p(problem.NPmodes),
            N_BC(problem.inletIndex.rows()),
            gNut(problem.nNutModes)
        {}
 
        int operator()(const Eigen::VectorXd& x, Eigen::VectorXd& fvec) const;
        int df(const Eigen::VectorXd& x,  Eigen::MatrixXd& fjac) const;
 
        UnsteadyNSTurb* problem;
        int Nphi_u;
        int nphiNut;
        int Nphi_p;
        int N_BC;
        scalar nu;
        scalar dt;
        Eigen::VectorXd y_old;
        Eigen::VectorXd yOldOld;
        Eigen::VectorXd bc;
        Eigen::MatrixXd tauU;
        Eigen::VectorXd gNut;
        std::vector<SPLINTER::RBFSpline*> SPLINES;
};
 
 
 
struct newtonUnsteadyNSTurbPPE: public newton_argument<double>
{
    public:
        newtonUnsteadyNSTurbPPE() {}
        newtonUnsteadyNSTurbPPE(int Nx, int Ny,
                                UnsteadyNSTurb& problem): newton_argument<double>(Nx, Ny),
            problem(&problem),
            Nphi_u(problem.NUmodes + problem.liftfield.size()),
            nphiNut(problem.nNutModes),
            Nphi_p(problem.NPmodes),
            N_BC(problem.inletIndex.rows()),
            gNut(problem.nNutModes)
        {}
 
        int operator()(const Eigen::VectorXd& x, Eigen::VectorXd& fvec) const;
        int df(const Eigen::VectorXd& x,  Eigen::MatrixXd& fjac) const;
 
        UnsteadyNSTurb* problem;
        int Nphi_u;
        int nphiNut;
        int Nphi_p;
        int N_BC;
        scalar nu;
        scalar dt;
        Eigen::VectorXd y_old;
        Eigen::VectorXd yOldOld;
        Eigen::VectorXd bc;
        Eigen::MatrixXd tauU;
        Eigen::VectorXd gNut;
        std::vector<SPLINTER::RBFSpline*> SPLINES;
};
 
struct newtonUnsteadyNSTurbSUPAve: public newton_argument<double>
{
    public:
        newtonUnsteadyNSTurbSUPAve() {}
        newtonUnsteadyNSTurbSUPAve(int Nx, int Ny,
                                   UnsteadyNSTurb& problem): newton_argument<double>(Nx, Ny),
            problem(&problem),
            Nphi_u(problem.NUmodes + problem.liftfield.size() + problem.NSUPmodes),
            nphiNut(problem.nNutModes),
            Nphi_p(problem.NPmodes),
            N_BC(problem.inletIndex.rows()),
            gNut(problem.nNutModes),
            gNutAve(problem.nutAve.size())
        {}
 
        int operator()(const Eigen::VectorXd& x, Eigen::VectorXd& fvec) const;
        int df(const Eigen::VectorXd& x,  Eigen::MatrixXd& fjac) const;
 
        UnsteadyNSTurb* problem;
        int Nphi_u;
        int nphiNut;
        int Nphi_p;
        int N_BC;
        scalar nu;
        scalar dt;
        Eigen::VectorXd y_old;
        Eigen::VectorXd yOldOld;
        Eigen::VectorXd bc;
        Eigen::MatrixXd tauU;
        Eigen::VectorXd gNut;
        Eigen::VectorXd gNutAve;
        std::vector<SPLINTER::RBFSpline*> SPLINES;
};
 
struct newtonUnsteadyNSTurbPPEAve: public newton_argument<double>
{
    public:
        newtonUnsteadyNSTurbPPEAve() {}
        newtonUnsteadyNSTurbPPEAve(int Nx, int Ny,
                                   UnsteadyNSTurb& problem): newton_argument<double>(Nx, Ny),
            problem(&problem),
            Nphi_u(problem.NUmodes + problem.liftfield.size()),
            nphiNut(problem.nNutModes),
            Nphi_p(problem.NPmodes),
            N_BC(problem.inletIndex.rows()),
            gNut(problem.nNutModes),
            gNutAve(problem.nutAve.size())
 
        {}
 
        int operator()(const Eigen::VectorXd& x, Eigen::VectorXd& fvec) const;
        int df(const Eigen::VectorXd& x,  Eigen::MatrixXd& fjac) const;
 
        UnsteadyNSTurb* problem;
        int Nphi_u;
        int nphiNut;
        int Nphi_p;
        int N_BC;
        scalar nu;
        scalar dt;
        Eigen::VectorXd y_old;
        Eigen::VectorXd yOldOld;
        Eigen::VectorXd bc;
        Eigen::MatrixXd tauU;
        Eigen::VectorXd gNut;
        Eigen::VectorXd gNutAve;
        std::vector<SPLINTER::RBFSpline*> SPLINES;
};
 
 
 
/*---------------------------------------------------------------------------*\
                        Class reducedProblem Declaration
\*---------------------------------------------------------------------------*/
 
 
class ReducedUnsteadyNSTurb: public reducedUnsteadyNS
{
    private:
 
    public:
        // Constructors
        ReducedUnsteadyNSTurb();
        explicit ReducedUnsteadyNSTurb(UnsteadyNSTurb& problem);
 
        ~ReducedUnsteadyNSTurb() {};
 
        UnsteadyNSTurb* problem;
 
        int nphiNut;
 
        int dimA;
 
        PtrList<volScalarField> nutModes;
 
        Eigen::MatrixXd rbfCoeffMat;
 
        Eigen::MatrixXd initCond;
 
        Eigen::VectorXd nut0;
 
        newtonUnsteadyNSTurbSUP newtonObjectSUP;
 
        newtonUnsteadyNSTurbSUPAve newtonObjectSUPAve;
 
        newtonUnsteadyNSTurbPPE newtonObjectPPE;
 
        newtonUnsteadyNSTurbPPEAve newtonObjectPPEAve;
 
        Eigen::VectorXd muStar;
 
        Eigen::VectorXd gNutAve;
 
        int interChoice = 1;
 
        bool skipLift = false;
 
        PtrList<volScalarField> nutRecFields;
 
        // Functions
 
        void solveOnlinePPE(Eigen::MatrixXd velNow);
 
        void solveOnlineSUP(Eigen::MatrixXd velNow);
 
        void solveOnlineSUPAve(Eigen::MatrixXd velNow);
 
        void solveOnlinePPEAve(Eigen::MatrixXd velNow);
 
        void reconstruct(bool exportFields = false,
                         fileName folder = "./online_rec");
 
        Eigen::MatrixXd setOnlineVelocity(Eigen::MatrixXd vel);
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 
 
#endif