Description

Data manager for the SPH-based FSI system.

Public Member Functions
	FsiDataManager (std::shared_ptr< ChFsiParamsSPH > params)

void	SetGrowthFactor (float factor)
	Set the growth factor for buffer resizing.

void	AddSphParticle (Real3 pos, Real rho, Real pres, Real mu, Real3 vel=mR3(0.0), Real3 tauXxYyZz=mR3(0.0), Real3 tauXyXzYz=mR3(0.0))
	Add an SPH particle given its position, physical properties, velocity, and stress.

void	AddBceMarker (MarkerType type, Real3 pos, Real3 vel)
	Add a BCE marker of given type at the specified position and with specified velocity.

void	Initialize (unsigned int num_fsi_bodies, unsigned int num_fsi_nodes1D, unsigned int num_fsi_elements1D, unsigned int num_fsi_nodes2D, unsigned int num_fsi_elements2D, bool use_node_directions)
	Initialize the underlying FSU system. More...

std::vector< int >	FindParticlesInBox (const Real3 &hsize, const Real3 &pos, const Real3 &ax, const Real3 &ay, const Real3 &az)
	Find indices of all SPH particles inside the specified OBB.

std::vector< Real3 >	GetPositions ()
	Extract positions of all markers (SPH and BCE).

std::vector< Real3 >	GetVelocities ()
	Extract velocities of all markers (SPH and BCE).

std::vector< Real3 >	GetAccelerations ()
	Extract accelerations of all markers (SPH and BCE).

std::vector< Real3 >	GetForces ()
	Extract forces applied to all markers (SPH and BCE).

std::vector< Real3 >	GetProperties ()
	Extract fluid properties of all markers (SPH and BCE). More...

std::vector< Real3 >	GetPositions (const std::vector< int > &indices)
	Extract positions of all markers (SPH and BCE) with indices in the provided array.

std::vector< Real3 >	GetVelocities (const std::vector< int > &indices)
	Extract velocities of all markers (SPH and BCE) with indices in the provided array.

std::vector< Real3 >	GetAccelerations (const std::vector< int > &indices)
	Extract accelerations of all markers (SPH and BCE) with indices in the provided array.

std::vector< Real3 >	GetForces (const std::vector< int > &indices)
	Extract forces applied to all markers (SPH and BCE) with indices in the provided array.

std::vector< Real3 >	GetRigidForces ()
	Extract FSI forces on rigid bodies.

std::vector< Real3 >	GetRigidTorques ()
	Extract FSI torques on rigid bodies.

std::vector< Real3 >	GetFlex1dForces ()
	Extract FSI forces on flex1D nodes.

std::vector< Real3 >	GetFlex2dForces ()
	Extract FSI forces on flex2D nodes.

void	ConstructReferenceArray ()

void	SetCounters (unsigned int num_fsi_bodies, unsigned int num_fsi_nodes1D, unsigned int num_fsi_elements1D, unsigned int num_fsi_nodes2D, unsigned int num_fsi_elements2D)

void	CopyDeviceDataToHalfStep ()
	Initialize the midpoint device data of the fluid system by copying from the full step.

void	ResetData ()
	Reset device data at beginning of a step. More...

void	ResizeData (bool first_step)
	Resize data based on the active particles At first step, the internal resizeArray is always called.

size_t	GetCurrentGPUMemoryUsage () const
	Add this method declaration in the FsiDataManager struct.

Public Attributes
std::shared_ptr< CudaDeviceInfo >	cudaDeviceInfo
	CUDA device information.

std::shared_ptr< ChFsiParamsSPH >	paramsH
	simulation parameters (host)

std::shared_ptr< Counters >	countersH
	problem counters (host)

std::shared_ptr< SphMarkerDataD >	sphMarkers_D
	information of SPH particles at state 1 on device

std::shared_ptr< SphMarkerDataD >	sortedSphMarkers1_D
	information of SPH particles at state 2 on device

std::shared_ptr< SphMarkerDataD >	sortedSphMarkers2_D
	sorted information of SPH particles at state 1 on device

std::shared_ptr< SphMarkerDataH >	sphMarkers_H
	information of SPH particles on host

std::shared_ptr< FsiBodyStateH >	fsiBodyState_H
	rigid body state (host)

std::shared_ptr< FsiBodyStateD >	fsiBodyState_D
	rigid body state 2 (device)

std::shared_ptr< FsiMeshStateH >	fsiMesh1DState_H
	1-D FEA mesh state (host)

std::shared_ptr< FsiMeshStateD >	fsiMesh1DState_D
	1-D FEA mesh state (device)

std::shared_ptr< FsiMeshStateH >	fsiMesh2DState_H
	2-D FEA mesh state (host)

std::shared_ptr< FsiMeshStateD >	fsiMesh2DState_D
	2-D FEA mesh state (device)

thrust::host_vector< int2 >	flex1D_Nodes_H
	node indices for each 1-D flex segment (host)

thrust::device_vector< int2 >	flex1D_Nodes_D
	node indices for each 1-D flex segment (device)

thrust::host_vector< int3 >	flex2D_Nodes_H
	node indices for each 2-D flex face (host)

thrust::device_vector< int3 >	flex2D_Nodes_D
	node indices for each 2-D flex face (device)

thrust::device_vector< Real3 >	rigid_BCEcoords_D
	rigid body BCE position (local reference frame)

thrust::host_vector< Real3 >	flex1D_BCEcoords_H
	local coords for BCE markers on 1-D flex segments (host)

thrust::device_vector< Real3 >	flex1D_BCEcoords_D
	local coords for BCE markers on 1-D flex segments (device)

thrust::host_vector< Real3 >	flex2D_BCEcoords_H
	local coords for BCE markers on 2-D flex faces (host)

thrust::device_vector< Real3 >	flex2D_BCEcoords_D
	local coors for BCE markers on 2-D flex faces (device)

thrust::device_vector< uint >	rigid_BCEsolids_D
	associated body ID for BCE markers on rigid bodies

thrust::host_vector< uint3 >	flex1D_BCEsolids_H
	associated mesh and segment for BCE markers on 1-D segments

thrust::device_vector< uint3 >	flex1D_BCEsolids_D
	associated mesh and segment for BCE markers on 1-D segments

thrust::host_vector< uint3 >	flex2D_BCEsolids_H
	associated mesh and face for BCE markers on 2-D faces

thrust::device_vector< uint3 >	flex2D_BCEsolids_D
	associated mesh and face for BCE markers on 2-D faces

thrust::device_vector< Real3 >	rigid_FSI_ForcesD
	surface-integrated forces to rigid bodies

thrust::device_vector< Real3 >	rigid_FSI_TorquesD
	surface-integrated torques to rigid bodies

thrust::device_vector< Real3 >	flex1D_FSIforces_D
	surface-integrated forces on FEA 1-D segment nodes

thrust::device_vector< Real3 >	flex2D_FSIforces_D
	surface-integrated forces on FEA 2-D face nodes

std::shared_ptr< ProximityDataD >	markersProximity_D
	information of neighbor search on the device

thrust::host_vector< int4 >	referenceArray
	phases in the array of SPH particles

thrust::host_vector< int4 >	referenceArray_FEA
	phases in the array of SPH particles for flexible elements

thrust::device_vector< Real4 >	derivVelRhoD
	particle dv/dt and d(rho)/dt for particles

thrust::device_vector< Real4 >	derivVelRhoOriginalD
	particle dv/dt and d(rho)/dt - unsorted

thrust::device_vector< Real3 >	derivTauXxYyZzD
	d(tau)/dt for particles

thrust::device_vector< Real3 >	derivTauXyXzYzD
	d(tau)/dt for particles

thrust::device_vector< Real3 >	vel_XSPH_D
	XSPH velocity for particles.

thrust::device_vector< Real3 >	vis_vel_SPH_D
	ISPH velocity for particles.

thrust::device_vector< Real4 >	sr_tau_I_mu_i
	ISPH strain-rate, stress, inertia number, friction.

thrust::device_vector< Real4 >	sr_tau_I_mu_i_Original
	ISPH strain-rate, stress, inertia number, friction.

thrust::device_vector< Real3 >	bceAcc
	acceleration for boundary/rigid/flex body particles

thrust::device_vector< int32_t >	activityIdentifierOriginalD
	active particle flags - unsorted

thrust::device_vector< int32_t >	activityIdentifierSortedD
	active particle flags - sorted

thrust::device_vector< int32_t >	extendedActivityIdentifierOriginalD
	active particle flags - unsorted

thrust::device_vector< uint >	prefixSumExtendedActivityIdD
	prefix sum of extended particles

thrust::device_vector< uint >	activeListD
	active list of particles

thrust::device_vector< uint >	numNeighborsPerPart
	number of neighbors for each particle

thrust::device_vector< uint >	neighborList
	neighbor list for all particles

thrust::device_vector< uint >	freeSurfaceIdD
	identifiers for particles close to free surface

Member Function Documentation

◆ GetProperties()

std::vector<Real3> chrono::fsi::sph::FsiDataManager::GetProperties ( )

Extract fluid properties of all markers (SPH and BCE).

For each SPH particle, the 3-dimensional vector contains density, pressure, and viscosity.

◆ Initialize()

void chrono::fsi::sph::FsiDataManager::Initialize	(	unsigned int	num_fsi_bodies,
		unsigned int	num_fsi_nodes1D,
		unsigned int	num_fsi_elements1D,
		unsigned int	num_fsi_nodes2D,
		unsigned int	num_fsi_elements2D,
		bool	use_node_directions
	)

Initialize the underlying FSU system.

Set reference arrays, set counters, and resize simulation arrays.

◆ ResetData()

void chrono::fsi::sph::FsiDataManager::ResetData ( )

Reset device data at beginning of a step.

Initializes device vectors to zero.

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

/builds/uwsbel/chrono/src/chrono_fsi/sph/physics/FsiDataManager.cuh

Description

Public Member Functions

Public Attributes

Member Function Documentation

◆ GetProperties()

◆ Initialize()

◆ ResetData()