Description

Class to calculate force between SPH markers in Weakly Compressible SPH.

This is an abstract class that defines an interface that various SPH method should implement. The class owns a collision system fsi which takes care of GPU based proximity computation of the markers. It also holds a pointer to external data of SPH markers, proximity data, parameters, and numbers. Child class must implement Finalize and ForceSPH methods

Inheritance diagram for chrono::fsi::ChFsiForce:

[legend]

Public Member Functions
	ChFsiForce (std::shared_ptr< ChBce > otherBceWorker, std::shared_ptr< SphMarkerDataD > otherSortedSphMarkersD, std::shared_ptr< ProximityDataD > otherMarkersProximityD, std::shared_ptr< FsiGeneralData > otherFsiGeneralData, std::shared_ptr< SimParams > otherParamsH, std::shared_ptr< NumberOfObjects > otherNumObjects)
	Base constructor for FSI force class. More...

virtual	~ChFsiForce ()
	Destructor. Deletes the collision system.

virtual void	ForceSPH (std::shared_ptr< SphMarkerDataD > otherSphMarkersD, std::shared_ptr< FsiBodiesDataD > otherFsiBodiesD, std::shared_ptr< FsiMeshDataD > fsiMeshD)=0
	Function calculate the force on SPH markers. More...

virtual void	Finalize ()
	Synchronize the copy of the data (parameters and number of objects) between device (GPU) and host (CPU). More...

void	SetLinearSolver (ChFsiLinearSolver::SolverType other_solverType)

Static Public Member Functions
static void	CopySortedToOriginal_Invasive_R3 (thrust::device_vector< Real3 > &original, thrust::device_vector< Real3 > &sorted, const thrust::device_vector< uint > &gridMarkerIndex)
	Copy sorted data into original data. More...

static void	CopySortedToOriginal_NonInvasive_R3 (thrust::device_vector< Real3 > &original, const thrust::device_vector< Real3 > &sorted, const thrust::device_vector< uint > &gridMarkerIndex)
	Copy sorted data into original data. More...

static void	CopySortedToOriginal_Invasive_R4 (thrust::device_vector< Real4 > &original, thrust::device_vector< Real4 > &sorted, const thrust::device_vector< uint > &gridMarkerIndex)
	Copy sorted data into original data. More...

static void	CopySortedToOriginal_NonInvasive_R4 (thrust::device_vector< Real4 > &original, thrust::device_vector< Real4 > &sorted, const thrust::device_vector< uint > &gridMarkerIndex)
	Copy sorted data into original data. More...

Public Attributes
std::shared_ptr< ChFsiLinearSolver >	myLinearSolver

std::shared_ptr< ChBce >	bceWorker
	pointer to Boundary Condition Enforcing markers class.

std::shared_ptr< ChCollisionSystemFsi >	fsiCollisionSystem
	collision system; takes care of constructing neighbors list

std::shared_ptr< SphMarkerDataD >	sphMarkersD
	device copy of the sph markers data

std::shared_ptr< SphMarkerDataD >	sortedSphMarkersD
	device copy of the sorted sph markers data

std::shared_ptr< ProximityDataD >	markersProximityD
	pointer object that holds the proximity of the markers

std::shared_ptr< FsiGeneralData >	fsiGeneralData
	pointer to sph general data

std::shared_ptr< SimParams >	paramsH
	pointer to simulation parameters

std::shared_ptr< NumberOfObjects >	numObjectsH
	pointer to number of objects, fluid and boundary markers

thrust::device_vector< Real3 >	vel_vis_Sorted_D
	sorted visualization velocity data

thrust::device_vector< Real3 >	vel_XSPH_Sorted_D
	sorted xsph velocity data

thrust::device_vector< Real4 >	derivVelRhoD_Sorted_D
	sorted derivVelRhoD

Constructor & Destructor Documentation

◆ ChFsiForce()

chrono::fsi::ChFsiForce::ChFsiForce	(	std::shared_ptr< ChBce >	otherBceWorker,
		std::shared_ptr< SphMarkerDataD >	otherSortedSphMarkersD,
		std::shared_ptr< ProximityDataD >	otherMarkersProximityD,
		std::shared_ptr< FsiGeneralData >	otherFsiGeneralData,
		std::shared_ptr< SimParams >	otherParamsH,
		std::shared_ptr< NumberOfObjects >	otherNumObjects
	)

Base constructor for FSI force class.

The constructor instantiates the collision system (ChCollisionSystemFsi) and initializes the pointer to external data.

Parameters

otherBceWorker	Pointer to the ChBce object that handles BCE markers
otherSortedSphMarkersD	Information of markers in the sorted array on device
otherMarkersProximityD	Pointer to the object that holds the proximity of the markers on device
otherFsiGeneralData	Pointer to the sph general data
otherParamsH	Pointer to the simulation parameters on host
otherNumObjects	Pointer to number of objects, fluid and boundary markers, etc.

Member Function Documentation

◆ CopySortedToOriginal_Invasive_R3()

static void chrono::fsi::ChFsiForce::CopySortedToOriginal_Invasive_R3	(	thrust::device_vector< Real3 > &	original,
		thrust::device_vector< Real3 > &	sorted,
		const thrust::device_vector< uint > &	gridMarkerIndex
	)

static

Copy sorted data into original data.

This function copies the data that are sorted in the collision system, into the original data, where data is real3. The class is invasive, meaning that the sorted data will be modified (and will be equivalent to the original). Therefore, this function should be used whenever sorted data is not needed, but efficiency is preferred.

◆ CopySortedToOriginal_Invasive_R4()

static void chrono::fsi::ChFsiForce::CopySortedToOriginal_Invasive_R4	(	thrust::device_vector< Real4 > &	original,
		thrust::device_vector< Real4 > &	sorted,
		const thrust::device_vector< uint > &	gridMarkerIndex
	)

static

Copy sorted data into original data.

This function copies the data that are sorted in the collision system, into the original data, where data is real4. The class is invasive, meaning that the sorted data will be modified (and will be equivalent to the original). Therefore, this function should be used whenever sorted data is not needed, but efficiency is preferred.

◆ CopySortedToOriginal_NonInvasive_R3()

static void chrono::fsi::ChFsiForce::CopySortedToOriginal_NonInvasive_R3	(	thrust::device_vector< Real3 > &	original,
		const thrust::device_vector< Real3 > &	sorted,
		const thrust::device_vector< uint > &	gridMarkerIndex
	)

static

Copy sorted data into original data.

This function copies the data that are sorted in the collision system, into the original data, where data is real3. The class is non-invasive, meaning that the sorted data will not be modified. This comes at the expense of lower efficiency.

◆ CopySortedToOriginal_NonInvasive_R4()

static void chrono::fsi::ChFsiForce::CopySortedToOriginal_NonInvasive_R4	(	thrust::device_vector< Real4 > &	original,
		thrust::device_vector< Real4 > &	sorted,
		const thrust::device_vector< uint > &	gridMarkerIndex
	)

static

Copy sorted data into original data.

This function copies the data that are sorted in the collision system, into the original data, where data is real4. The class is non-invasive, meaning that the sorted data will not be modified. This comes at the expense of lower efficiency.

◆ Finalize()

virtual void chrono::fsi::ChFsiForce::Finalize ( )

virtual

Synchronize the copy of the data (parameters and number of objects) between device (GPU) and host (CPU).

This function needs to be called once the host data are modified.

Reimplemented in chrono::fsi::ChFsiForceI2SPH, chrono::fsi::ChFsiForceExplicitSPH, and chrono::fsi::ChFsiForceIISPH.

◆ ForceSPH()

virtual void chrono::fsi::ChFsiForce::ForceSPH	(	std::shared_ptr< SphMarkerDataD >	otherSphMarkersD,
		std::shared_ptr< FsiBodiesDataD >	otherFsiBodiesD,
		std::shared_ptr< FsiMeshDataD >	fsiMeshD
	)

pure virtual

Function calculate the force on SPH markers.

This is a basic force computation relying on WCSPH approach. This is a virtual method that needs to be overridden by the child classes to compute fluid forces in an implicit integrator.

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

/builds/uwsbel/chrono/src/chrono_fsi/physics/ChFsiForce.cuh

Description

Public Member Functions

Static Public Member Functions

Public Attributes

Constructor & Destructor Documentation

◆ ChFsiForce()

Member Function Documentation

◆ CopySortedToOriginal_Invasive_R3()

◆ CopySortedToOriginal_Invasive_R4()

◆ CopySortedToOriginal_NonInvasive_R3()

◆ CopySortedToOriginal_NonInvasive_R4()

◆ Finalize()

◆ ForceSPH()