walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator Class Reference

Detailed Description

Evaluates the time derivative of the body velocity.

Using the operator()(), an internal map is filled with pairs of the body ID and its current velocity, after clearing the old map. Calling get(..), the body's former velocity is fetched from the map and used to calculate a simple approximation of the body velocity time derivative (du/dt = ( u_new - u_old ) / deltaT )

Whether or not a body gets treated by the evaluator depends on the return value of 'dpmBodySelectorFct'.

#include <BodyVelocityTimeDerivativeEvaluator.h>

Public Member Functions
	BodyVelocityTimeDerivativeEvaluator (const shared_ptr< StructuredBlockStorage > &blockStorage, const BlockDataID &bodyStorageID, const real_t &deltaT=real_t(1), const std::function< bool(pe::BodyID)> &dpmBodySelectorFct=selectRegularBodies)
void	operator() ()
void	resetDeltaT (const real_t &deltaT)
void	get (Vector3< real_t > &particleVelocityTimeDerivative, const Vector3< real_t > currentParticleVelocity, const walberla::id_t &bodySystemID)

Private Attributes
shared_ptr< StructuredBlockStorage >	blockStorage_
const BlockDataID	bodyStorageID_
std::map< walberla::id_t, Vector3< real_t > >	bodyVelocityMap_
real_t	deltaTinv_
std::function< bool(pe::BodyID)>	dpmBodySelectorFct_

Constructor & Destructor Documentation

BodyVelocityTimeDerivativeEvaluator()

walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::BodyVelocityTimeDerivativeEvaluator ( const shared_ptr< StructuredBlockStorage > &  blockStorage, const BlockDataID &  bodyStorageID, const real_t &  deltaT = real_t(1), const std::function< bool(pe::BodyID)> &  dpmBodySelectorFct = selectRegularBodies  )

inline

Member Function Documentation

get()

void walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::get ( Vector3< real_t > &  particleVelocityTimeDerivative, const Vector3< real_t >  currentParticleVelocity, const walberla::id_t &  bodySystemID  )

inline

operator()()

void walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::operator() ( )

inline

resetDeltaT()

void walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::resetDeltaT ( const real_t &  deltaT )

inline

Member Data Documentation

blockStorage_

shared_ptr<StructuredBlockStorage> walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::blockStorage_

private

bodyStorageID_

const BlockDataID walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::bodyStorageID_

private

bodyVelocityMap_

std::map< walberla::id_t, Vector3< real_t > > walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::bodyVelocityMap_

private

deltaTinv_

real_t walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::deltaTinv_

private

dpmBodySelectorFct_

std::function<bool(pe::BodyID)> walberla::pe_coupling::discrete_particle_methods::BodyVelocityTimeDerivativeEvaluator::dpmBodySelectorFct_

private

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

• /builds/administration/walberla-website/walberla/src/pe_coupling/discrete_particle_methods/evaluators/BodyVelocityTimeDerivativeEvaluator.h