Detailed Description

Advanced DEM kernel.

This model is the model from Edward Biegert, Bernhard Vowinckel, Eckart Meiburg A collision model for grain-resolving simulations of flows over dense, mobile, polydisperse granular sediment beds https://doi.org/10.1016/j.jcp.2017.03.035

const walberla::id_t& getUid(const size_t p_idx) const;
 
const walberla::mesa_pd::Vec3& getPosition(const size_t p_idx) const;
 
const walberla::mesa_pd::Vec3& getLinearVelocity(const size_t p_idx) const;
 
walberla::mesa_pd::Vec3& getForceRef(const size_t p_idx);
 
const walberla::mesa_pd::Vec3& getAngularVelocity(const size_t p_idx) const;
 
walberla::mesa_pd::Vec3& getTorqueRef(const size_t p_idx);
 
const uint_t& getType(const size_t p_idx) const;
 
const std::map<walberla::id_t, walberla::mesa_pd::Vec3>& getContactHistory(const size_t p_idx) const;
void setContactHistory(const size_t p_idx, const std::map<walberla::id_t, walberla::mesa_pd::Vec3>& v);

#include <NonLinearSpringDashpot.h>

Public Member Functions
	NonLinearSpringDashpot (const uint_t numParticleTypes, const real_t collisionTime)

	NonLinearSpringDashpot (const NonLinearSpringDashpot &other)=default

	NonLinearSpringDashpot (NonLinearSpringDashpot &&other)=default

NonLinearSpringDashpot &	operator= (const NonLinearSpringDashpot &other)=default

NonLinearSpringDashpot &	operator= (NonLinearSpringDashpot &&other)=default

template<typename Accessor >
void	operator() (const size_t p_idx1, const size_t p_idx2, Accessor &ac, const Vec3 &contactPoint, const Vec3 &contactNormal, const real_t &penetrationDepth, const real_t &dt) const

void	setCOR (const size_t type1, const size_t type2, const real_t &val)

void	setLnCORsqr (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

void	setMeff (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

void	setStiffnessT (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

void	setDampingT (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

void	setFrictionCoefficientStatic (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

void	setFrictionCoefficientDynamic (const size_t type1, const size_t type2, const real_t &val)
	assumes this parameter is symmetric

real_t	getLnCORsqr (const size_t type1, const size_t type2) const

real_t	getMeff (const size_t type1, const size_t type2) const

real_t	getStiffnessT (const size_t type1, const size_t type2) const

real_t	getDampingT (const size_t type1, const size_t type2) const

real_t	getFrictionCoefficientStatic (const size_t type1, const size_t type2) const

real_t	getFrictionCoefficientDynamic (const size_t type1, const size_t type2) const

Private Attributes
uint_t	numParticleTypes_

real_t	collisionTime_

std::vector< real_t >	lnCORsqr_ {}

std::vector< real_t >	meff_ {}

std::vector< real_t >	stiffnessT_ {}

std::vector< real_t >	dampingT_ {}

std::vector< real_t >	frictionCoefficientStatic_ {}

std::vector< real_t >	frictionCoefficientDynamic_ {}

Constructor & Destructor Documentation

◆ NonLinearSpringDashpot() [1/3]

walberla::mesa_pd::kernel::NonLinearSpringDashpot::NonLinearSpringDashpot	(	const uint_t	numParticleTypes,
		const real_t	collisionTime )

inline

◆ NonLinearSpringDashpot() [2/3]

walberla::mesa_pd::kernel::NonLinearSpringDashpot::NonLinearSpringDashpot ( const NonLinearSpringDashpot & other )

default

◆ NonLinearSpringDashpot() [3/3]

walberla::mesa_pd::kernel::NonLinearSpringDashpot::NonLinearSpringDashpot ( NonLinearSpringDashpot && other )

default

Member Function Documentation

◆ getDampingT()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getDampingT	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ getFrictionCoefficientDynamic()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getFrictionCoefficientDynamic	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ getFrictionCoefficientStatic()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getFrictionCoefficientStatic	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ getLnCORsqr()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getLnCORsqr	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ getMeff()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getMeff	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ getStiffnessT()

real_t walberla::mesa_pd::kernel::NonLinearSpringDashpot::getStiffnessT	(	const size_t	type1,
		const size_t	type2 ) const

inline

◆ operator()()

template<typename Accessor >

void walberla::mesa_pd::kernel::NonLinearSpringDashpot::operator()	(	const size_t	p_idx1,
		const size_t	p_idx2,
		Accessor &	ac,
		const Vec3 &	contactPoint,
		const Vec3 &	contactNormal,
		const real_t &	penetrationDepth,
		const real_t &	dt ) const

inline

◆ operator=() [1/2]

NonLinearSpringDashpot & walberla::mesa_pd::kernel::NonLinearSpringDashpot::operator= ( const NonLinearSpringDashpot & other )

default

◆ operator=() [2/2]

NonLinearSpringDashpot & walberla::mesa_pd::kernel::NonLinearSpringDashpot::operator= ( NonLinearSpringDashpot && other )

default

◆ setCOR()

void walberla::mesa_pd::kernel::NonLinearSpringDashpot::setCOR	(	const size_t	type1,
		const size_t	type2,
		const real_t &	val )

inline