Description

Class to set up a Chrono::FSI problem using particles and markers on a cylindrical coordinates grid.

#include <ChFsiProblemSPH.h>

Inheritance diagram for chrono::fsi::ChFsiProblemCylindrical:

Collaboration diagram for chrono::fsi::ChFsiProblemCylindrical:

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Public Member Functions
	ChFsiProblemCylindrical (ChSystem &sys, double spacing)
	Create a ChFsiProblemSPH object. More...

void	Construct (double radius_inner, double radius_outer, double height, const ChVector3d &pos, int side_flags)
	Construct SPH particles and optionally BCE markers in a cylindrical annulus of given dimensions. More...

size_t	AddCylindricalContainer (double radius_inner, double radius_outer, double height, const ChVector3d &pos, int side_flags)
	Add fixed BCE markers, representing a cylindrical annulus container for the computational domain. More...

Public Member Functions inherited from chrono::fsi::ChFsiProblemSPH
void	SetVerbose (bool verbose)
	Enable verbose output during construction of ChFsiProblemSPH (default: false).

ChFsiSystemSPH &	GetSystemFSI ()
	Access the underlying FSI system.

ChFluidSystemSPH &	GetFluidSystemSPH ()
	Access the underlying SPH system.

ChSystem &	GetMultibodySystem ()
	Access the underlying MBS system.

size_t	AddRigidBody (std::shared_ptr< ChBody > body, const chrono::utils::ChBodyGeometry &geometry, bool check_embedded, bool use_grid_bce=false)
	Add a rigid body to the FSI problem. More...

size_t	AddRigidBodySphere (std::shared_ptr< ChBody > body, const ChVector3d &pos, double radius, bool use_grid_bce=false)

size_t	AddRigidBodyBox (std::shared_ptr< ChBody > body, const ChFramed &pos, const ChVector3d &size)

size_t	AddRigidBodyCylinderX (std::shared_ptr< ChBody > body, const ChFramed &pos, double radius, double length, bool use_grid_bce=false)

size_t	AddRigidBodyMesh (std::shared_ptr< ChBody > body, const ChVector3d &pos, const std::string &obj_file, const ChVector3d &interior_point, double scale)

void	SetBcePattern1D (BcePatternMesh1D pattern, bool remove_center=false)
	Set the BCE marker pattern for 1D flexible solids for subsequent calls to AddFeaMesh. More...

void	SetBcePattern2D (BcePatternMesh2D pattern, bool remove_center=false)
	Set the BCE marker pattern for 2D flexible solids for subsequent calls to AddFeaMesh. More...

size_t	AddFeaMesh (std::shared_ptr< fea::ChMesh > mesh, bool check_embedded)
	Add an FEA mesh to the FSI problem. More...

void	RegisterParticlePropertiesCallback (std::shared_ptr< ParticlePropertiesCallback > callback)
	Register a callback for setting SPH particle initial properties.

void	SetComputationalDomainSize (ChAABB aabb)
	Explicitly set the computational domain limits. More...

void	Initialize ()
	Complete construction of the FSI problem and initialize the FSI system. More...

std::shared_ptr< ChBody >	GetGroundBody () const
	Get the ground body.

size_t	GetNumSPHParticles () const
	Get number of SPH particles.

size_t	GetNumBoundaryBCEMarkers () const
	Get number of boundary BCE markers.

const ChAABB &	GetComputationalDomainSize () const
	Get limits of computational domain.

const ChAABB &	GetSPHBoundingBox () const
	Get limits of SPH volume.

const ChVector3d &	GetFsiBodyForce (std::shared_ptr< ChBody > body) const
	Return the FSI applied force on the specified body (as returned by AddRigidBody). More...

const ChVector3d &	GetFsiBodyTorque (std::shared_ptr< ChBody > body) const
	Return the FSI applied torque on on the specified body (as returned by AddRigidBody). More...

void	SaveInitialMarkers (const std::string &out_dir) const
	Save the set of initial SPH and BCE grid locations to files in the specified output directory.

Additional Inherited Members
Public Types inherited from chrono::fsi::ChFsiProblemSPH
enum	WavemakerType { PISTON, FLAP }
	Wave generator types.

Protected Types inherited from chrono::fsi::ChFsiProblemSPH
typedef std::unordered_set< ChVector3i, CoordHash >	GridPoints

typedef std::vector< ChVector3d >	RealPoints

Protected Member Functions inherited from chrono::fsi::ChFsiProblemSPH
	ChFsiProblemSPH (ChSystem &sys, double spacing)
	Create a ChFsiProblemSPH object. More...

void	ProcessBody (RigidBody &b)
	Prune SPH markers that are inside the solid body volume. More...

int	ProcessBodyMesh (RigidBody &b, ChTriangleMeshConnected trimesh, const ChVector3d &interior_point)
	Prune SPH markers that are inside a body mesh volume. More...

Protected Attributes inherited from chrono::fsi::ChFsiProblemSPH
ChFluidSystemSPH	m_sysSPH
	underlying Chrono SPH system

ChFsiSystemSPH	m_sysFSI
	underlying Chrono FSI system

double	m_spacing
	particle and marker spacing

std::shared_ptr< ChBody >	m_ground
	ground body

GridPoints	m_sph
	SPH particle grid locations.

GridPoints	m_bce
	boundary BCE marker grid locations

ChVector3d	m_offset_sph
	SPH particles offset.

ChVector3d	m_offset_bce
	boundary BCE particles offset

ChAABB	m_domain_aabb
	computational domain bounding box

ChAABB	m_sph_aabb
	SPH volume bounding box.

std::vector< RigidBody >	m_bodies
	list of FSI rigid bodies

std::vector< FeaMesh >	m_meshes
	list of FSI FEA meshes

std::unordered_map< std::shared_ptr< ChBody >, size_t >	m_fsi_bodies

std::shared_ptr< ParticlePropertiesCallback >	m_props_cb
	callback for particle properties

bool	m_verbose
	if true, write information to standard output

bool	m_initialized
	set to 'true' once terrain is initialized

Constructor & Destructor Documentation

◆ ChFsiProblemCylindrical()

chrono::fsi::ChFsiProblemCylindrical::ChFsiProblemCylindrical	(	ChSystem &	sys,
		double	spacing
	)

Create a ChFsiProblemSPH object.

No SPH parameters are set.

Member Function Documentation

◆ AddCylindricalContainer()

size_t chrono::fsi::ChFsiProblemCylindrical::AddCylindricalContainer	(	double	radius_inner,
		double	radius_outer,
		double	height,
		const ChVector3d &	pos,
		int	side_flags
	)

Add fixed BCE markers, representing a cylindrical annulus container for the computational domain.

Set inner radius to zero to create a cylindrical container. The cylinder is constructed with its axis along the global Z axis. The specified dimensions refer to the interior of the cylindrical annulus. 'side_flags' are boolean combinations of CylSide enums.

Parameters

radius_inner	inner radius
radius_outer	outer radius
height	height
pos	reference position
side_flags	sides for which BCE markers are created

◆ Construct()

void chrono::fsi::ChFsiProblemCylindrical::Construct	(	double	radius_inner,
		double	radius_outer,
		double	height,
		const ChVector3d &	pos,
		int	side_flags
	)

Construct SPH particles and optionally BCE markers in a cylindrical annulus of given dimensions.

Set inner radius to zero to create a cylindrical container. The reference position is the center of the bottom face of the cylinder; in other words, SPH particles are generated above this location and BCE markers for the bottom boundary are generated below this location. If created, the BCE markers for the bottom and side walls are adjacent to the SPH domain; 'side_flags' are boolean combinations of CylSide enums.