chrono::fsi::ChBce Class Reference

Description

Base class for processing boundary condition enforcing (BCE) particle forces in an FSI system.

This class handles the Fluid-Solid Interaction by enforcing i) forces from the fluid/granular dynamics system to the MBD system, and ii) displacement from the MBD system to the fluid dynamics system.

Inheritance diagram for chrono::fsi::ChBce:

Collaboration diagram for chrono::fsi::ChBce:

Public Member Functions
	ChBce (std::shared_ptr< SphMarkerDataD > otherSortedSphMarkersD, std::shared_ptr< ProximityDataD > otherMarkersProximityD, std::shared_ptr< FsiGeneralData > otherFsiGeneralData, std::shared_ptr< SimParams > otherParamsH, std::shared_ptr< ChCounters > otherNumObjects, bool verb)
	Constructor of the ChBce class. More...
	~ChBce ()
	Destructor of the ChBce class.
void	UpdateRigidMarkersPositionVelocity (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiBodiesDataD > fsiBodiesD)
	Updates the position and velocity of the particles on the rigid bodies based on the state of the body.
void	UpdateFlexMarkersPositionVelocity (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiMeshDataD > fsiMeshD)
	Updates the position and velocity of the particles on the flexible bodies based on the state of the body.
void	Rigid_Forces_Torques (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiBodiesDataD > fsiBodiesD)
	Calculates the forces from the fluid/granular dynamics system to the FSI system on rigid bodies.
void	Flex_Forces (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiMeshDataD > fsiMeshD)
	Calculates the forces from the fluid/granular dynamics system to the FSI system on flexible bodies.
void	ModifyBceVelocityPressureStress (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiBodiesDataD > fsiBodiesD, std::shared_ptr< FsiMeshDataD > fsiMeshD)
	Modify the velocity, pressure, stress of BCE particles according to the SPH particles around.
void	Populate_RigidSPH_MeshPos_LRF (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiBodiesDataD > fsiBodiesD, std::vector< int > fsiBodyBceNum)
	Populates the BCE particles on the rigid bodies at the initial configuration of the system. More...
void	Populate_FlexSPH_MeshPos_LRF (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiMeshDataD > fsiMeshD, std::vector< int > fsiShellBceNum, std::vector< int > fsiCableBceNum)
	Populates the BCE particles on the flexible bodies at the initial configuration of the system. More...
void	Initialize (std::shared_ptr< SphMarkerDataD > sphMarkersD, std::shared_ptr< FsiBodiesDataD > fsiBodiesD, std::shared_ptr< FsiMeshDataD > fsiMeshD, std::vector< int > fsiBodyBceNum, std::vector< int > fsiShellBceNum, std::vector< int > fsiCableBceNum)
	Complete construction of the BCE at the intial configuration of the system.
Public Member Functions inherited from chrono::fsi::ChFsiGeneral
	ChFsiGeneral (std::shared_ptr< SimParams > hostParams, std::shared_ptr< ChCounters > hostNumObjects)
	Constructor for the ChFsiGeneral class. More...
virtual	~ChFsiGeneral ()
	Destructor of the ChFsiGeneral class.
void	computeGridSize (uint n, uint blockSize, uint &numBlocks, uint &numThreads)
	Compute number of blocks and threads for calculation on GPU. More...

Public Attributes
thrust::device_vector< Real3 >	velMas_ModifiedBCE
	Modified velocity information for BCE particles.
thrust::device_vector< Real4 >	rhoPreMu_ModifiedBCE
	Modified density, pressure information for BCE particles.
thrust::device_vector< Real3 >	tauXxYyZz_ModifiedBCE
	Modified stress tensor for BCE particles, diagonal entries.
thrust::device_vector< Real3 >	tauXyXzYz_ModifiedBCE
	Modified stress tensor for BCE particles， non-diagonal entries.

Additional Inherited Members
Protected Member Functions inherited from chrono::fsi::ChFsiGeneral
uint	iDivUp (uint a, uint b)
	Return a/b or a/b + 1.

Constructor & Destructor Documentation

ChBce()

chrono::fsi::ChBce::ChBce	(	std::shared_ptr< SphMarkerDataD >	otherSortedSphMarkersD,
		std::shared_ptr< ProximityDataD >	otherMarkersProximityD,
		std::shared_ptr< FsiGeneralData >	otherFsiGeneralData,
		std::shared_ptr< SimParams >	otherParamsH,
		std::shared_ptr< ChCounters >	otherNumObjects,
		bool	verb
	)

Constructor of the ChBce class.

Parameters

otherSortedSphMarkersD	data for SPH particles
otherMarkersProximityD	information for neighbor search
otherFsiGeneralData	general information, e.g, ordering of the phases
otherParamsH	simulation parameters
otherNumObjects	number of sph particles on each phase
verb	verbose terminal output

Member Function Documentation

Populate_FlexSPH_MeshPos_LRF()

void chrono::fsi::ChBce::Populate_FlexSPH_MeshPos_LRF	(	std::shared_ptr< SphMarkerDataD >	sphMarkersD,
		std::shared_ptr< FsiMeshDataD >	fsiMeshD,
		std::vector< int >	fsiShellBceNum,
		std::vector< int >	fsiCableBceNum
	)

Populates the BCE particles on the flexible bodies at the initial configuration of the system.

The local coordinates w.r.t to the coordinate system of the flexible bodies is saved and is used during the update stage. In such a condition the position and orientation of the body is enough to update the position of all the particles attached to it.

Populate_RigidSPH_MeshPos_LRF()

void chrono::fsi::ChBce::Populate_RigidSPH_MeshPos_LRF	(	std::shared_ptr< SphMarkerDataD >	sphMarkersD,
		std::shared_ptr< FsiBodiesDataD >	fsiBodiesD,
		std::vector< int >	fsiBodyBceNum
	)

Populates the BCE particles on the rigid bodies at the initial configuration of the system.

The local coordinates w.r.t to the coordinate system of the rigid bodies is saved and is used during the update stage. In such a condition the position and orientation of the body is enough to update the position of all the particles attached to it.

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

• /builds/uwsbel/chrono/src/chrono_fsi/physics/ChBce.cuh