cs_ext_neighborhood.h File Reference

#include "cs_base.h"
#include "cs_mesh.h"
#include "cs_mesh_quantities.h"

Include dependency graph for cs_ext_neighborhood.h:

Go to the source code of this file.

Enumerations
enum	cs_ext_neighborhood_type_t { CS_EXT_NEIGHBORHOOD_NONE, CS_EXT_NEIGHBORHOOD_COMPLETE, CS_EXT_NEIGHBORHOOD_CELL_CENTER_OPPOSITE, CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX }
	Type of extended neighborhood associated with the mesh. More...

Functions
cs_ext_neighborhood_type_t	cs_ext_neighborhood_get_type (void)
	Get the extended neighborhood type. More...
void	cs_ext_neighborhood_set_type (cs_ext_neighborhood_type_t enh_type)
	Set the extended neighborhood type. More...
cs_real_t	cs_ext_neighborhood_get_non_ortho_max (void)
	Get the non_orthogonality threshold (in degrees) associated with the CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX neighborhood type. More...
void	cs_ext_neighborhood_set_non_ortho_max (cs_real_t non_ortho_max)
	Set the non_orthogonality threshold (in degrees) associated with the CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX neighborhood type. More...
void	cs_ext_neighborhood_reduce (cs_mesh_t *mesh, cs_mesh_quantities_t *mesh_quantities)
	Reduce the "cell -> cells" connectivity for the extended neighborhood using a non-orthogonality criterion. More...
void	cs_ext_neighborhood_define (cs_mesh_t *mesh)
	Create the "cell -> cells" connectivity. More...

Variables
const char *	cs_ext_neighborhood_type_name []

Enumeration Type Documentation

cs_ext_neighborhood_type_t

enum cs_ext_neighborhood_type_t

Type of extended neighborhood associated with the mesh.

Extended cell neighborhoods are based on cells adjacent through a shared vertex but with no shared face.

Enumerator
CS_EXT_NEIGHBORHOOD_NONE	No extended neighborhood No extended neighborhood
CS_EXT_NEIGHBORHOOD_COMPLETE	Full extended neighborhood Full extended neighborhood This option should lead to the smoothest gradient, as it uses information from all neighbors, but is quite costly. On average, a hexahedral mesh has about 21 vertex neighbors per cell, a tetrahedral mesh around 150 vertex neighbors.
CS_EXT_NEIGHBORHOOD_CELL_CENTER_OPPOSITE	Cells with centers best aligned opposite to face-adjacent cell centers Opposite cell centers Add cells whose centers are closest to the half-line prolonging the [face-adjacent cell-center, cell center segment]. The number of additional cells in the extended neighborhood is at most equal to the number of cell faces.
CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX	Cells adjacent to faces whose non-orthogonality exceeds a given threshold (45 degrees by default) Maximum non-orthogonality Add cells adjacent to vertices of faces whose non-orthogonality exceeds a given threshold. This is the legacy reduced extended neighborhood option. Depending on the configuration, information may be heavily weighted to some sides of a cell and quite limited on other sides, which may explain why user feedback seems to dismiss this option.

Function Documentation

cs_ext_neighborhood_define()

void cs_ext_neighborhood_define

(

cs_mesh_t *

mesh

)

Create the "cell -> cells" connectivity.

Parameters

[in,out]

mesh

pointer to a mesh structure

cs_ext_neighborhood_get_non_ortho_max()

cs_real_t cs_ext_neighborhood_get_non_ortho_max

(

void

)

Get the non_orthogonality threshold (in degrees) associated with the CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX neighborhood type.

Returns

non-orthogonality threshold

cs_ext_neighborhood_get_type()

cs_ext_neighborhood_type_t cs_ext_neighborhood_get_type

(

void

)

Get the extended neighborhood type.

Returns

extended neighborhood type

cs_ext_neighborhood_reduce()

void cs_ext_neighborhood_reduce	(	cs_mesh_t *	mesh,
		cs_mesh_quantities_t *	mesh_quantities
	)

Reduce the "cell -> cells" connectivity for the extended neighborhood using a non-orthogonality criterion.

Note: Only cells sharing only a vertex or vertices (not a face) belong to the "cell -> cells" connectivity.

Parameters

[in]	mesh	pointer to mesh structure
[in]	mesh_quantities	associated mesh quantities

cs_ext_neighborhood_set_non_ortho_max()

void cs_ext_neighborhood_set_non_ortho_max

(

cs_real_t

non_ortho_max

)

Set the non_orthogonality threshold (in degrees) associated with the CS_EXT_NEIGHBORHOOD_NON_ORTHO_MAX neighborhood type.

Parameters

[in]

non_ortho_max

non-orthogonality threshold

cs_ext_neighborhood_set_type()

void cs_ext_neighborhood_set_type

(

cs_ext_neighborhood_type_t

enh_type

)

Set the extended neighborhood type.

Parameters

[in]

enh_type

extended neighborhood type

Variable Documentation

cs_ext_neighborhood_type_name

const char* cs_ext_neighborhood_type_name[]