path: root/src/functors/lattice/blockLatticeLocalF2D.hh

/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2012 Lukas Baron, Mathias J. Krause, Albert Mink
 *  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
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
*/

#ifndef BLOCK_LATTICE_LOCAL_F_2D_HH
#define BLOCK_LATTICE_LOCAL_F_2D_HH

#include<vector>
#include<cmath>

#include "blockLatticeLocalF2D.h"
#include "blockBaseF2D.h"
#include "functors/genericF.h"
#include "functors/analytical/analyticalF.h"
#include "functors/analytical/indicator/indicatorF2D.h"
#include "core/blockLattice2D.h"
#include "communication/mpiManager.h"
#include "core/blockLatticeStructure2D.h"
#include "dynamics/lbHelpers.h"  // for computation of lattice rho and velocity

namespace olb {


template <typename T, typename DESCRIPTOR>
BlockLatticeDissipation2D<T,DESCRIPTOR>::BlockLatticeDissipation2D
(BlockLatticeStructure2D<T,DESCRIPTOR>& blockLattice, const UnitConverter<T,DESCRIPTOR>& converter)
  : BlockLatticeF2D<T,DESCRIPTOR>(blockLattice,1), _converter(converter)
{
  this->getName() = "dissipation";
}

// todo: get functor working
template <typename T, typename DESCRIPTOR>
bool BlockLatticeDissipation2D<T,DESCRIPTOR>::operator() (T output[], const int input[])
{
  //  int globIC = input[0];
  //  int locix= input[1];
  //  int lociy= input[2];
  //  int lociz= input[3];
  //  if ( this->_blockLattice.get_load().rank(globIC) == singleton::mpi().getRank() ) {
  //    // local coords are given, fetch local cell and compute value(s)
  //    T rho, uTemp[DESCRIPTOR::d], pi[util::TensorVal<DESCRIPTOR >::n];
  //    int overlap = this->_blockLattice.getOverlap();
  //    this->_blockLattice.getExtendedBlockLattice(this->_blockLattice.get_load().loc(globIC)).get(locix+overlap, lociy+overlap, lociz+overlap).computeAllMomenta(rho, uTemp, pi);

  //    T PiNeqNormSqr = pi[0]*pi[0] + 2.*pi[1]*pi[1] + pi[2]*pi[2];
  //    if (util::TensorVal<DESCRIPTOR >::n == 6)
  //      PiNeqNormSqr += pi[2]*pi[2] + pi[3]*pi[3] + 2.*pi[4]*pi[4] +pi[5]*pi[5];

  //    T nuLattice = converter.getLatticeNu();
  //    T omega = converter.getOmega();
  //    T finalResult = PiNeqNormSqr*nuLattice*pow(omega*descriptors::invCs2<T,DESCRIPTOR>(),2)/rho/2.;

  //    return std::vector<T>(1,finalResult);
  //  } else {
  //    return std::vector<T>(); // empty vector
  //  }

  return false;
}

template <typename T, typename DESCRIPTOR>
BlockLatticePhysDissipation2D<T,DESCRIPTOR>::BlockLatticePhysDissipation2D
(BlockLatticeStructure2D<T,DESCRIPTOR>& blockLattice, const UnitConverter<T,DESCRIPTOR>& converter)
  : BlockLatticePhysF2D<T,DESCRIPTOR>(blockLattice,converter,1)
{
  this->getName() = "physDissipation";
}

template <typename T, typename DESCRIPTOR>
bool BlockLatticePhysDissipation2D<T,DESCRIPTOR>::operator() (T output[], const int input[])
{
  T rho, uTemp[DESCRIPTOR::d], pi[util::TensorVal<DESCRIPTOR >::n];
  this->_blockLattice.get( input[0], input[1] ).computeAllMomenta(rho, uTemp, pi);

  T PiNeqNormSqr = pi[0]*pi[0] + 2.*pi[1]*pi[1] + pi[2]*pi[2];
  if (util::TensorVal<DESCRIPTOR >::n == 6) {
    PiNeqNormSqr += pi[2]*pi[2] + pi[3]*pi[3] + 2.*pi[4]<