Detailed Description

template<typename GhostLayerField_T>
class walberla::boundary::ShiftedPeriodicity< GhostLayerField_T >

A periodicity boundary condition that adds a user-defined spatial shift to the field when applied.

This shift can prevent the locking of large-scale turbulent features in the flow direction, see e.g., Munters et al. (https://doi.org/10.1063/1.4941912).

Periodicity defined in the blockforest must be turned off in the normal-direction.

This class handles the CPU-specific packing and unpacking of the communication buffers.

Template Parameters

GhostLayerField_T Type of the ghost-layer field that is shifted periodically

#include <ShiftedPeriodicity.h>

Inheritance diagram for walberla::boundary::ShiftedPeriodicity< GhostLayerField_T >:

Public Types
using	ValueType = typename GhostLayerField_T::value_type

using	ShiftType = typename Base::ShiftType

Public Types inherited from walberla::boundary::ShiftedPeriodicityBase< ShiftedPeriodicity< GhostLayerField_T >, GhostLayerField_T >
using	FieldType

using	ValueType

using	ShiftType

Public Member Functions
	ShiftedPeriodicity (const std::weak_ptr< StructuredBlockForest > &blockForest, const BlockDataID &fieldID, const uint_t fieldGhostLayers, const uint_t normalDir, const uint_t shiftDir, const ShiftType shiftValue)

Public Member Functions inherited from walberla::boundary::ShiftedPeriodicityBase< ShiftedPeriodicity< GhostLayerField_T >, GhostLayerField_T >
	ShiftedPeriodicityBase (const std::weak_ptr< StructuredBlockForest > &blockForest, const BlockDataID &fieldID, const uint_t fieldGhostLayers, const uint_t normalDir, const uint_t shiftDir, const ShiftType shiftValue)

Vector3< ShiftType >	shift () const

uint_t	shiftDirection () const

uint_t	normalDirection () const

void	operator() ()

Private Types
using	Base = ShiftedPeriodicityBase<ShiftedPeriodicity<GhostLayerField_T>, GhostLayerField_T>

Private Member Functions
void	packBuffer (IBlock *const block, const CellInterval &ci, std::vector< ValueType > &buffer)

void	unpackBuffer (IBlock *const block, const CellInterval &ci, const std::vector< ValueType > &buffer)

Private Attributes
friend	Base

Additional Inherited Members
Protected Attributes inherited from walberla::boundary::ShiftedPeriodicityBase< ShiftedPeriodicity< GhostLayerField_T >, GhostLayerField_T >
const BlockDataID	fieldID_

const uint_t	fieldGhostLayers_

cell_idx_t	fSize_