ryujin: ryujin::NavierStokes::DiagonalMatrix< dim, Number > Class Template Reference

ryujin 2.1.1 revision 46bf70e400e423a8ffffe8300887eeb35b8dfb2c

#include <source/navier_stokes/parabolic_solver_gmg_operators.h>

Public Types
using	vector_type = dealii::LinearAlgebra::distributed::Vector< Number >

using	block_vector_type = dealii::LinearAlgebra::distributed::BlockVector< Number >

Public Member Functions
	DiagonalMatrix ()=default

void	reinit (const vector_type &lumped_mass_matrix, const vector_type &density, const dealii::AffineConstraints< Number > &affine_constraints)

vector_type &	get_vector ()

block_vector_type &	get_block_vector ()

void	vmult (vector_type &dst, const vector_type &src) const

void	vmult (block_vector_type &dst, const block_vector_type &src) const

Detailed Description

template<int dim, typename Number>
class ryujin::NavierStokes::DiagonalMatrix< dim, Number >

A diagonal matrix used as a preconditioner for the non-multigrid CG iteration. The diagonal matrix is constructed by computing \(d_i=1/(\rho_i m_i)\) for a given lumped mass matrix \( m_i \), and a density field \( \rho_i \).

Definition at line 44 of file parabolic_solver_gmg_operators.h.

Member Typedef Documentation

◆ vector_type

template<int dim, typename Number >

using ryujin::NavierStokes::DiagonalMatrix< dim, Number >::vector_type = dealii::LinearAlgebra::distributed::Vector<Number>

Definition at line 50 of file parabolic_solver_gmg_operators.h.

◆ block_vector_type

template<int dim, typename Number >

using ryujin::NavierStokes::DiagonalMatrix< dim, Number >::block_vector_type = dealii::LinearAlgebra::distributed::BlockVector<Number>

Definition at line 55 of file parabolic_solver_gmg_operators.h.

Constructor & Destructor Documentation

◆ DiagonalMatrix()

template<int dim, typename Number >

ryujin::NavierStokes::DiagonalMatrix< dim, Number >::DiagonalMatrix ( )

default

Constructor

Member Function Documentation

◆ reinit()

template<int dim, typename Number >

void ryujin::NavierStokes::DiagonalMatrix< dim, Number >::reinit	(	const vector_type &	lumped_mass_matrix,
		const vector_type &	density,
		const dealii::AffineConstraints< Number > &	affine_constraints
	)

inline

Compute the inverse of a given density \( \rho_i \) and a given lumped mass matrix \( m_i \), viz., \(d_i=1/(\rho_i m_i)\).

Definition at line 67 of file parabolic_solver_gmg_operators.h.

◆ get_vector()

template<int dim, typename Number >

vector_type & ryujin::NavierStokes::DiagonalMatrix< dim, Number >::get_vector ( )

inline

Get access to the internal vector to be externally filled.

Definition at line 92 of file parabolic_solver_gmg_operators.h.

◆ get_block_vector()

template<int dim, typename Number >

block_vector_type & ryujin::NavierStokes::DiagonalMatrix< dim, Number >::get_block_vector ( )

inline

Get access to the internal vector to be externally filled.

Definition at line 100 of file parabolic_solver_gmg_operators.h.

◆ vmult() [1/2]

template<int dim, typename Number >

void ryujin::NavierStokes::DiagonalMatrix< dim, Number >::vmult	(	vector_type &	dst,
		const vector_type &	src
	)		const

inline

Apply on a vector.

Definition at line 108 of file parabolic_solver_gmg_operators.h.

◆ vmult() [2/2]

template<int dim, typename Number >

void ryujin::NavierStokes::DiagonalMatrix< dim, Number >::vmult	(	block_vector_type &	dst,
		const block_vector_type &	src
	)		const

inline

Apply on a block vector.

Definition at line 122 of file parabolic_solver_gmg_operators.h.

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

source/navier_stokes/parabolic_solver.h
source/navier_stokes/parabolic_solver_gmg_operators.h