setSlipBoundaryWithDynamics3D.hh

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/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2020 Alexander Schulz, Davide Dapelo
 *  E-mail contact: info@openlb.net
 *  The most recent release of OpenLB can be downloaded at
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//This file contains the slip boundary with dynamics
//This is a new version of the Boundary, which only contains free floating functions
#ifndef SET_SLIP_BOUNDARY_WITH_DYNAMICS_HH
#define SET_SLIP_BOUNDARY_WITH_DYNAMICS_HH
 
#include "setSlipBoundaryWithDynamics3D.h"
 
namespace olb {
 
template<typename T,typename DESCRIPTOR, class MixinDynamics>
void setSlipBoundaryWithDynamics(SuperLattice<T, DESCRIPTOR>& sLattice, SuperGeometry<T,3>& superGeometry, int material)
{
  setSlipBoundaryWithDynamics<T,DESCRIPTOR,MixinDynamics>(sLattice, superGeometry.getMaterialIndicator(material));
}
 
template<typename T, typename DESCRIPTOR, class MixinDynamics>
void setSlipBoundaryWithDynamics(SuperLattice<T, DESCRIPTOR>& sLattice, FunctorPtr<SuperIndicatorF3D<T>>&& indicator)
{
  int _overlap = 1;
  for (int iC = 0; iC < sLattice.getLoadBalancer().size(); ++iC) {
    setSlipBoundaryWithDynamics<T,DESCRIPTOR,MixinDynamics>(sLattice.getBlock(iC), indicator->getBlockIndicatorF(iC));
  }
  //the addPoints2CommBC function is initialised inside setLocalVelocityBoundary3D.h/hh
  //TODO: Is communication really needed for this BC?
  addPoints2CommBC(sLattice,std::forward<decltype(indicator)>(indicator), _overlap);
}
 
 
//set SlipBoundaryWithDynamics on indicated cells inside the block domain
template<typename T, typename DESCRIPTOR, class MixinDynamics>
void setSlipBoundaryWithDynamics(BlockLattice<T,DESCRIPTOR>& block, BlockIndicatorF3D<T>& indicator)
{
  using namespace boundaryhelper;
  OstreamManager clout(std::cout, "setslipBoundaryWithDynamics");
  auto& blockGeometryStructure = indicator.getBlockGeometry();
  const int margin = 1;
  std::vector<int> discreteNormal(4,0);
  blockGeometryStructure.forSpatialLocations([&](auto iX, auto iY, auto iZ) {
    if (blockGeometryStructure.getNeighborhoodRadius({iX, iY, iZ}) >= margin
        && indicator(iX, iY, iZ)) {
      Dynamics<T,DESCRIPTOR>* dynamics = nullptr;
      discreteNormal = indicator.getBlockGeometry().getStatistics().getType(iX, iY, iZ);
      // Setting postProcessor as in setSlipBoundary3D
      if (discreteNormal[1]!=0 || discreteNormal[2]!=0 || discreteNormal[3]!=0) {//set postProcessors for indicated cells
        bool _output = false;
        if (_output) {
          clout << "setSlipBoundary<" << discreteNormal[1] << ","<< discreteNormal[2] << ","<< discreteNormal[3] << ">("  << iX << ", "<< iX << ", " << iY << ", " << iY << ", " << iZ << ", " << iZ << " )" << std::endl;
        }
        PostProcessorGenerator3D<T, DESCRIPTOR>* postProcessor = new SlipBoundaryProcessorGenerator3D<T, DESCRIPTOR>(iX, iX, iY, iY, iZ, iZ, discreteNormal[1], discreteNormal[2], discreteNormal[3]);
        if (postProcessor) {
          block.addPostProcessor(*postProcessor);
        }
      }
      else {//define dynamics for indicated cells
        clout << "Warning: Could not setSlipBoundary (" << iX << ", " << iY << ", " << iZ << "), discreteNormal=(" << discreteNormal[0] <<","<< discreteNormal[1] <<","<< discreteNormal[2] <<","<< discreteNormal[3] <<"), set to bounceBack" << std::endl;
        block.template defineDynamics<BounceBack>({iX, iY, iZ});
      }
      // Setting dynamics and momenta as in interpolatedVelocityBoundary3D
      if (discreteNormal[0] == 0) {
        if (discreteNormal[1] != 0 && discreteNormal[1] == -1) {//set momenta, dynamics and postProcessors on indicated velocityBoundaryCells
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<0,-1>
          >>();
        }
        else if (discreteNormal[1] != 0 && discreteNormal[1] == 1) {
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<0,1>
          >>();
        }
        else if (discreteNormal[2] != 0 && discreteNormal[2] == -1) {
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<1,-1>
          >>();
        }
        else if (discreteNormal[2] != 0 && discreteNormal[2] == 1) {
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<1,1>
          >>();
        }
        else if (discreteNormal[3] != 0 && discreteNormal[3] == -1) {
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<2,-1>
          >>();
        }
        else if (discreteNormal[3] != 0 && discreteNormal[3] == 1) {
          dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
            momenta::BasicDirichletVelocityBoundaryTuple<2,1>
          >>();
        }
      }
      else if (discreteNormal[0] == 1) {//set momenta,dynamics and postProcessors on indicated velocityBoundary External Corner cells
        dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
          momenta::FixedVelocityBoundaryTuple
        >>();
      }
      else if (discreteNormal[0] == 2) {//Internalvelocitycorner
        dynamics = block.getDynamics(PlainMixinDynamicsForNormalMomenta<T,DESCRIPTOR,
          CombinedRLBdynamics,MixinDynamics,momenta::InnerCornerVelocityTuple3D
        >::construct(Vector<int,3>(discreteNormal.data() + 1)));
      }
      //ExternalVelocityEdge
      else if (discreteNormal[0] == 3) {//set momenta,dynamics and postProcessors on indicated velocityBoundary External Edge cells
        dynamics = block.template getDynamics<typename MixinDynamics::template exchange_momenta<
          momenta::FixedVelocityBoundaryTuple
        >>();
      }
      //InternalVelocityEdge
      else if (discreteNormal[0] == 4) {//set momenta,dynamics and postProcessors on indicated velocityBoundary Inner Edge cells
            dynamics = block.getDynamics(PlainMixinDynamicsForNormalSpecialMomenta<T,DESCRIPTOR,
              CombinedRLBdynamics,MixinDynamics,momenta::InnerEdgeVelocityTuple3D
            >::construct(Vector<int,3>(discreteNormal.data() + 1)));
      }
      setBoundary(block, iX,iY,iZ, dynamics);
    }
  });
}
 
}
#endif