IBMTribend Struct Reference

Parameters for IBM tribend. More...

#include <ibm_tribend.hpp>

Public Member Functions
double	cutoff () const
void	initialize (BoxGeometry const &box_geo, CellStructure const &cell_structure)
	Set the IBM Tribend parameters.
	IBMTribend (int ind1, int ind2, int ind3, int ind4, double kb, bool flat)
std::tuple< Utils::Vector3d, Utils::Vector3d, Utils::Vector3d, Utils::Vector3d >	calc_forces (BoxGeometry const &box_geo, Particle const &p1, Particle const &p2, Particle const &p3, Particle const &p4) const
	Calculate the forces The equations can be found in Appendix C of [28].

Public Attributes
double	kb
	Bare bending modulus.
double	theta0
	Reference angle.
std::tuple< int, int, int, int >	p_ids
	Particle ids.
bool	flat
bool	is_initialized

Static Public Attributes
static constexpr int	num = 3

Detailed Description

Parameters for IBM tribend.

Definition at line 33 of file ibm_tribend.hpp.

Constructor & Destructor Documentation

IBMTribend()

IBMTribend::IBMTribend ( int  ind1, int  ind2, int  ind3, int  ind4, double  kb, bool  flat  )

inline

Definition at line 64 of file ibm_tribend.hpp.

Member Function Documentation

calc_forces()

std::tuple< Utils::Vector3d, Utils::Vector3d, Utils::Vector3d, Utils::Vector3d > IBMTribend::calc_forces	(	BoxGeometry const &	box_geo,
		Particle const &	p1,
		Particle const &	p2,
		Particle const &	p3,
		Particle const &	p4
	)		const

Calculate the forces The equations can be found in Appendix C of [28].

Returns

forces on p1, p2, p3, p4

Definition at line 34 of file ibm_tribend.cpp.

References BoxGeometry::get_mi_vector(), kb, Particle::pos(), theta0, and vector_product().

cutoff()

double IBMTribend::cutoff ( ) const

inline

Definition at line 53 of file ibm_tribend.hpp.

initialize()

void IBMTribend::initialize	(	BoxGeometry const &	box_geo,
		CellStructure const &	cell_structure
	)

Set the IBM Tribend parameters.

Also calculate and store the reference state. See details in [22] and [28].

Definition at line 96 of file ibm_tribend.cpp.

References flat, get_ibm_particle_position(), BoxGeometry::get_mi_vector(), is_initialized, p_ids, theta0, and vector_product().

Member Data Documentation

flat

bool IBMTribend::flat

Definition at line 50 of file ibm_tribend.hpp.

Referenced by initialize().

is_initialized

bool IBMTribend::is_initialized

Definition at line 51 of file ibm_tribend.hpp.

Referenced by initialize().

kb

double IBMTribend::kb

Bare bending modulus.

If triangle pairs appear only once, the total bending force should get a factor 2. For the numerical model, a factor $\sqrt(3)$ should be added, see [22] and [28]. This is an approximation, it holds strictly only for a sphere

Definition at line 42 of file ibm_tribend.hpp.

Referenced by calc_forces().

num

constexpr int IBMTribend::num = 3

staticconstexpr

Definition at line 55 of file ibm_tribend.hpp.

p_ids

std::tuple<int, int, int, int> IBMTribend::p_ids

Particle ids.

Definition at line 48 of file ibm_tribend.hpp.

Referenced by initialize().

theta0

double IBMTribend::theta0

Reference angle.

Definition at line 45 of file ibm_tribend.hpp.

Referenced by calc_forces(), and initialize().

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

• ibm_tribend.hpp
• ibm_tribend.cpp