advection.c File Reference

Advection scheme. More...

Functions
void	gfs_cell_advected_face_values (FttCell *cell, const GfsAdvectionParams *par)
void	gfs_cell_non_advected_face_values (FttCell *cell, const GfsAdvectionParams *par)
gdouble	gfs_face_upwinded_value (const FttCellFace *face, GfsUpwinding upwinding, GfsVariable **u)
void	gfs_face_advection_flux (const FttCellFace *face, const GfsAdvectionParams *par)
void	gfs_face_velocity_advection_flux (const FttCellFace *face, const GfsAdvectionParams *par)
void	gfs_face_velocity_convective_flux (const FttCellFace *face, const GfsAdvectionParams *par)
void	gfs_face_advected_normal_velocity (const FttCellFace *face, const GfsAdvectionParams *par)
void	gfs_face_interpolated_normal_velocity (const FttCellFace *face, GfsVariable **v)
void	gfs_face_reset_normal_velocity (const FttCellFace *face)
gboolean	gfs_cell_is_small (const FttCell *cell)
void	gfs_set_merged (GfsDomain *domain)
void	gfs_domain_traverse_merged (GfsDomain *domain, GfsMergedTraverseFunc func, gpointer data)
void	gfs_advection_update (GSList *merged, const GfsAdvectionParams *par)

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Detailed Description

Advection scheme.

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Function Documentation

void gfs_advection_update	(	GSList *	merged,
		const GfsAdvectionParams *	par
	)

Parameters:

merged	a list of merged #FttCell.
par	the advection parameters.

Updates the v variable of par for the merged cells of merged using the fv update of each merged cell.

The v variable in each cell of the merged list is set to its average updated value over the composite cell defined by all the cells in merged.

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void gfs_cell_advected_face_values	(	FttCell *	cell,
		const GfsAdvectionParams *	par
	)

Parameters:

cell	a #FttCell.
par	the advection parameters.

Fills the face variable (v field of #GfsFaceStateVector) of all the faces of cell with the advected value of variable par->v at time t + dt/2.

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gboolean gfs_cell_is_small

(

const FttCell *

cell

)

Parameters:

cell	a #FttCell.

Returns:

TRUE if cell is "small" (i.e. should be merged with a neighbhor).

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void gfs_cell_non_advected_face_values	(	FttCell *	cell,
		const GfsAdvectionParams *	par
	)

Parameters:

cell	a #FttCell.
par	the (non)advection parameters.

Fills the face variable (v field of #GfsFaceStateVector) of all the faces of cell with the non-advected value of variable par->v at time t + dt/2.

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void gfs_domain_traverse_merged	(	GfsDomain *	domain,
		GfsMergedTraverseFunc	func,
		gpointer	data
	)

Parameters:

domain	the domain to traverse.
func	the function to call for each visited merged cells.
data	user data to pass to func.

Traverses the merged leaf cells of the domain defined by domain. A list of merged cells is passed to func. No cell belongs to more than one merged list.

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void gfs_face_advected_normal_velocity	(	const FttCellFace *	face,
		const GfsAdvectionParams *	par
	)

Parameters:

face	a #FttCellFace.
par	the #GfsAdvectionParams.

Fills the normal component of the velocity at face with the value advected (to time t + dt/2) from the centered velocities.

This function assumes that the face variable has been previously defined for the correct component of the velocity using gfs_cell_advected_face_values().

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void gfs_face_advection_flux	(	const FttCellFace *	face,
		const GfsAdvectionParams *	par
	)

Parameters:

face	a #FttCellFace.
par	the advection parameters.

Adds to variable par->fv, the value of the (conservative) advection flux of the face variable through face.

This function assumes that the face variable has been previously defined using gfs_cell_advected_face_values().

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void gfs_face_interpolated_normal_velocity	(	const FttCellFace *	face,
		GfsVariable **	v
	)

Parameters:

face	a #FttCellFace.
v	the velocity.

Fills the normal component of the velocity at face with the value interpolated from the centered velocities.

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void gfs_face_reset_normal_velocity

(

const FttCellFace *

face

)

Parameters:

face	a #FttCellFace.

Set velocity normal to face to zero.

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gdouble gfs_face_upwinded_value	(	const FttCellFace *	face,
		GfsUpwinding	upwinding,
		GfsVariable **	u
	)

Parameters:

face	a #FttCellFace.
upwinding	type of upwinding.
u	the cell-centered velocity.

This function assumes that the face variable has been previously defined using gfs_cell_advected_face_values().

Returns:

the upwinded value of the face variable.

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void gfs_face_velocity_advection_flux	(	const FttCellFace *	face,
		const GfsAdvectionParams *	par
	)

Parameters:

face	a #FttCellFace.
par	the advection parameters.

Adds to variable par->fv, the value of the (conservative) advection flux through face of variable par->v (a component of the velocity).

This function assumes that the g field of the cells sharing face are filled with the pressure gradient at time t + dt/2.

This function also assumes that the face value of par->v has been previously defined using gfs_cell_advected_face_values().

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void gfs_face_velocity_convective_flux	(	const FttCellFace *	face,
		const GfsAdvectionParams *	par
	)

Parameters:

face	a #FttCellFace.
par	the advection parameters.

Adds to variable par->fv, the value of the (non-conservative) convective flux through face of variable par->v (a component of the velocity).

This function assumes that the g field of the cells sharing face are filled with the pressure gradient at time t + dt/2.

This function also assumes that the face value of par->v has been previously defined using gfs_cell_advected_face_values().

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void gfs_set_merged

(

GfsDomain *

domain

)

Parameters:

domain

the domain to traverse.

Sets the merged field of the mixed cells of the domain defined by domain.

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