walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator Class Reference

Detailed Description

Evaluator of the total derivative of the fluid velocity.

This evaluates Du/Dt = du/dt + u * grad(u). The gradient of the velocity, grad(u), has to be provided by a field, e.g. evaluated with VelocityGradientFieldEvaluator.h. The time derivative, du/dt, is approximated by a simple backward difference: du/dt = (u_new - u_old ) / deltaT. This requires two velocity field.

#include <VelocityTotalTimeDerivativeFieldEvaluator.h>

Public Types
using	VelocityField_T = GhostLayerField< Vector3< real_t >, 1 >
using	TensorField_T = GhostLayerField< Matrix3< real_t >, 1 >

Public Member Functions
	VelocityTotalTimeDerivativeFieldEvaluator (const BlockDataID &totalTimeDerivativeVelocityFieldID, const ConstBlockDataID &currentVelocityFieldID, const ConstBlockDataID &formerVelocityFieldID, const ConstBlockDataID &velocityGradientFieldID, const real_t &deltaT=real_t(1))
void	operator() (IBlock *const block)
void	resetDeltaT (const real_t &deltaT)

Private Attributes
const BlockDataID	totalTimeDerivativeVelocityFieldID_
const ConstBlockDataID	currentVelocityFieldID_
const ConstBlockDataID	formerVelocityFieldID_
const ConstBlockDataID	velocityGradientFieldID_
real_t	deltaTinv_

Member Typedef Documentation

TensorField_T

using walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::TensorField_T = GhostLayerField<Matrix3<real_t>, 1>

VelocityField_T

using walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::VelocityField_T = GhostLayerField<Vector3<real_t>, 1>

Constructor & Destructor Documentation

VelocityTotalTimeDerivativeFieldEvaluator()

walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::VelocityTotalTimeDerivativeFieldEvaluator ( const BlockDataID &  totalTimeDerivativeVelocityFieldID, const ConstBlockDataID &  currentVelocityFieldID, const ConstBlockDataID &  formerVelocityFieldID, const ConstBlockDataID &  velocityGradientFieldID, const real_t &  deltaT = real_t(1)  )

inline

Member Function Documentation

operator()()

void walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::operator() ( IBlock *const  block )

inline

resetDeltaT()

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

inline

Member Data Documentation

currentVelocityFieldID_

const ConstBlockDataID walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::currentVelocityFieldID_

private

deltaTinv_

real_t walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::deltaTinv_

private

formerVelocityFieldID_

const ConstBlockDataID walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::formerVelocityFieldID_

private

totalTimeDerivativeVelocityFieldID_

const BlockDataID walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::totalTimeDerivativeVelocityFieldID_

private

velocityGradientFieldID_

const ConstBlockDataID walberla::pe_coupling::discrete_particle_methods::VelocityTotalTimeDerivativeFieldEvaluator::velocityGradientFieldID_

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/VelocityTotalTimeDerivativeFieldEvaluator.h