olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR > Class Template Reference

#include <navierStokesAdvectionDiffusionCouplingPostProcessor2D.h>

Inheritance diagram for olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >:

Collaboration diagram for olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >:

Public Member Functions
	SmagorinskyBoussinesqCouplingPostProcessor2D (int x0_, int x1_, int y0_, int y1_, T gravity_, T T0_, T deltaTemp_, std::vector< T > dir_, T PrTurb_, T smagoPrefactor_, std::vector< BlockStructureD< 2 > * > partners_)
int	extent () const override
	Extent of application area (0 for purely local operations)
int	extent (int whichDirection) const override
	Extent of application area along a direction (0 or 1)
void	process (BlockLattice< T, DESCRIPTOR > &blockLattice) override
	Execute post-processing step.
void	processSubDomain (BlockLattice< T, DESCRIPTOR > &blockLattice, int x0_, int x1_, int y0_, int y1_) override
	Execute post-processing step on a sublattice.
Public Member Functions inherited from olb::PostProcessor2D< T, DESCRIPTOR >
	PostProcessor2D ()
virtual	~PostProcessor2D ()
std::string &	getName ()
	read and write access to name
std::string const &	getName () const
	read only access to name
int	getPriority () const
	read only access to priority

Additional Inherited Members
Protected Attributes inherited from olb::PostProcessor2D< T, DESCRIPTOR >
int	_priority

Detailed Description

template<typename T, typename DESCRIPTOR>
class olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >

Definition at line 133 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.h.

Constructor & Destructor Documentation

SmagorinskyBoussinesqCouplingPostProcessor2D()

template<typename T , typename DESCRIPTOR >

olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >::SmagorinskyBoussinesqCouplingPostProcessor2D	(	int	x0_,
		int	x1_,
		int	y0_,
		int	y1_,
		T	gravity_,
		T	T0_,
		T	deltaTemp_,
		std::vector< T >	dir_,
		T	PrTurb_,
		T	smagoPrefactor_,
		std::vector< BlockStructureD< 2 > * >	partners_ )

Definition at line 305 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.hh.

  :  x0(x0_), x1(x1_), y0(y0_), y1(y1_),
     gravity(gravity_), T0(T0_), deltaTemp(deltaTemp_),
     dir(dir_), PrTurb(PrTurb_), smagoPrefactor(smagoPrefactor_), partners(partners_)
{
  this->getName() = "SmagorinskyBoussinesqCouplingPostProcessor2D";
  // we normalize the direction of force vector
  T normDir = T();
  for (unsigned iD = 0; iD < dir.size(); ++iD) {
    normDir += dir[iD]*dir[iD];
  }
  normDir = util::sqrt(normDir);
  for (unsigned iD = 0; iD < dir.size(); ++iD) {
    dir[iD] /= normDir;
  }
 
  for (unsigned iD = 0; iD < dir.size(); ++iD) {
    forcePrefactor[iD] = gravity * dir[iD];
  }
 
  tauTurbADPrefactor = descriptors::invCs2<T,descriptors::D2Q5<descriptors::VELOCITY,descriptors::TAU_EFF>>() / descriptors::invCs2<T,DESCRIPTOR>() / PrTurb;
  tPartner = static_cast<BlockLattice<T,descriptors::D2Q5<descriptors::VELOCITY,descriptors::TAU_EFF>> *>(partners[0]);
}

References olb::PostProcessor2D< T, DESCRIPTOR >::getName(), and olb::util::sqrt().

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Member Function Documentation

extent() [1/2]

template<typename T , typename DESCRIPTOR >

int olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >::extent ( ) const

inlineoverridevirtual

Extent of application area (0 for purely local operations)

Implements olb::PostProcessor2D< T, DESCRIPTOR >.

Definition at line 138 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.h.

  {
    return 0;
  }

extent() [2/2]

template<typename T , typename DESCRIPTOR >

int olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >::extent ( int direction ) const

inlineoverridevirtual

Extent of application area along a direction (0 or 1)

Implements olb::PostProcessor2D< T, DESCRIPTOR >.

Definition at line 142 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.h.

  {
    return 0;
  }

process()

template<typename T , typename DESCRIPTOR >

void olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >::process ( BlockLattice< T, DESCRIPTOR > & blockLattice )

overridevirtual

Execute post-processing step.

Implements olb::PostProcessor2D< T, DESCRIPTOR >.

Definition at line 385 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.hh.

{
  processSubDomain(blockLattice, x0, x1, y0, y1);
}

processSubDomain()

template<typename T , typename DESCRIPTOR >

void olb::SmagorinskyBoussinesqCouplingPostProcessor2D< T, DESCRIPTOR >::processSubDomain ( BlockLattice< T, DESCRIPTOR > & blockLattice, int x0_, int x1_, int y0_, int y1_ )

overridevirtual

Execute post-processing step on a sublattice.

Molecular realaxation time

Turbulent realaxation time

Effective realaxation time

Implements olb::PostProcessor2D< T, DESCRIPTOR >.

Definition at line 333 of file navierStokesAdvectionDiffusionCouplingPostProcessor2D.hh.

{
 
  int newX0, newX1, newY0, newY1;
  if ( util::intersect (
         x0, x1, y0, y1,
         x0_, x1_, y0_, y1_,
         newX0, newX1, newY0, newY1 ) ) {
 
    for (int iX=newX0; iX<=newX1; ++iX) {
      for (int iY=newY0; iY<=newY1; ++iY) {
 
        // computation of the bousinessq force
        auto force = blockLattice.get(iX,iY).template getFieldPointer<descriptors::FORCE>();
        T temperatureDifference = tPartner->get(iX,iY).computeRho() - T0;
        for (unsigned iD = 0; iD < L::d; ++iD) {
          force[iD] = forcePrefactor[iD] * temperatureDifference;
        }
 
        // Velocity coupling
        auto u = tPartner->get(iX,iY).template getField<descriptors::VELOCITY>();
        // tau coupling
        auto tauNS = blockLattice.get(iX,iY).template getFieldPointer<descriptors::TAU_EFF>();
        auto tauAD = tPartner->get(iX,iY).template getFieldPointer<descriptors::TAU_EFF>();
 
        T rho, pi[util::TensorVal<DESCRIPTOR >::n];
        blockLattice.get(iX,iY).computeAllMomenta(rho, u.data(), pi);
        tPartner->get(iX,iY).template setField<descriptors::VELOCITY>(u);
        T PiNeqNormSqr = pi[0]*pi[0] + 2.0*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 PiNeqNorm    = util::sqrt(PiNeqNormSqr);
        T tau_mol_NS = 1. / blockLattice.get(iX,iY).getDynamics()->getParameters(blockLattice).template getOrFallback<descriptors::OMEGA>(0);
        T tau_mol_AD = 1. / tPartner->get(iX,iY).getDynamics()->getParameters(*tPartner).template getOrFallback<descriptors::OMEGA>(0);
        T tau_turb_NS = 0.5*(util::sqrt(tau_mol_NS*tau_mol_NS + smagoPrefactor/rho*PiNeqNorm) - tau_mol_NS);
        tauNS[0] = tau_mol_NS+tau_turb_NS;
 
        T tau_turb_AD = tau_turb_NS * tauTurbADPrefactor;
        tauAD[0] = tau_mol_AD+tau_turb_AD;
      }
    }
  }
 
}

References olb::BlockLattice< T, DESCRIPTOR >::get(), olb::util::intersect(), and olb::util::sqrt().

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The documentation for this class was generated from the following files:

• src/dynamics/navierStokesAdvectionDiffusionCouplingPostProcessor2D.h
• src/dynamics/navierStokesAdvectionDiffusionCouplingPostProcessor2D.hh