inamuroNewtonRaphsonDynamics.h

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/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2006, 2007 Orestis Malaspinas, Jonas Latt
 *  E-mail contact: info@openlb.net
 *  The most recent release of OpenLB can be downloaded at
 *  <http://www.openlb.net/>
 *
 *  This program 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 2
 *  of the License, or (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free
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*/
 
#ifndef INAMURO_NEWTON_RAPHSON_DYNAMICS_H
#define INAMURO_NEWTON_RAPHSON_DYNAMICS_H
 
#include "dynamics/dynamics.h"
#include "io/ostreamManager.h"
 
namespace olb {
 
template<typename T, typename DESCRIPTOR, typename Dynamics, typename MOMENTA, int direction, int orientation>
class InamuroNewtonRaphsonDynamics : public legacy::BasicDynamics<T,DESCRIPTOR,MOMENTA> {
public:
  InamuroNewtonRaphsonDynamics(T omega);
  T computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const override;
  CellStatistic<T> collide(Cell<T,DESCRIPTOR>& cell,
               LatticeStatistics<T>& statistics) override;
  T getOmega() const;
  void setOmega(T omega);
private:
  void computeApproxMomentum(T approxMomentum[DESCRIPTOR::d],
                             ConstCell<T,DESCRIPTOR>& cell,
                             const T &rho, const T u[DESCRIPTOR::d], const T xi[DESCRIPTOR::d],
                             const std::vector<int> knownIndexes,const std::vector<int> missingIndexes);
 
  T computeError(const T &rho,const T u[DESCRIPTOR::d], const T approxMomentum[DESCRIPTOR::d]);
 
  void computeGradGradError(T gradGradError[DESCRIPTOR::d][DESCRIPTOR::d],
                            T gradError[DESCRIPTOR::d],
                            const T &rho, const T u[DESCRIPTOR::d],const T xi[DESCRIPTOR::d],
                            const T approxMomentum[DESCRIPTOR::d],
                            const std::vector<int> missingIndexes);
 
  bool newtonRaphson(T xi[DESCRIPTOR::d],
                     const T gradError[DESCRIPTOR::d],
                     const T gradGradError[DESCRIPTOR::d][DESCRIPTOR::d]);
 
  bool invert(const T a[2][2],T b[2][2]);
 
  bool invert(const T a[3][3],T b[3][3]);
 
  Dynamics _boundaryDynamics;
  T _xi[DESCRIPTOR::d];
  mutable OstreamManager clout;
};
 
}
 
#endif