cs_les_inflow.c File Reference

#include "cs_defs.h"
#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "bft_mem.h"
#include "bft_error.h"
#include "bft_printf.h"
#include "cs_array.h"
#include "cs_base.h"
#include "cs_field.h"
#include "cs_field_pointer.h"
#include "cs_log.h"
#include "cs_math.h"
#include "cs_mesh.h"
#include "cs_mesh_quantities.h"
#include "cs_parall.h"
#include "cs_random.h"
#include "cs_timer.h"
#include "cs_mesh_location.h"
#include "cs_restart.h"
#include "cs_restart_default.h"
#include "cs_les_inflow.h"

Include dependency graph for cs_les_inflow.c:

Functions
void	synthe (const cs_real_t *const ttcabs, const cs_real_t dt[], cs_real_t rcodcl[])
void	cs_les_inflow_initialize (void)
	Creation of structures for the LES inflows. More...
void	cs_les_inflow_finalize (void)
	Finalize turbulent inflow generation API. More...
void	cs_les_inflow_add_inlet (cs_les_inflow_type_t type, bool volume_mode, const cs_zone_t *zone, int n_entities, int verbosity, const cs_real_t *vel_r, cs_real_t k_r, cs_real_t eps_r)
	Add an inlet definition for synthetic turbulence inflow generation. More...
void	cs_les_synthetic_eddy_restart_read (void)
void	cs_les_synthetic_eddy_restart_write (void)
void	cs_les_synthetic_eddy_method (cs_lnum_t n_points, const cs_lnum_t elt_ids[], const cs_real_3_t point_coordinates[], const cs_real_t *point_weight, int initialize, int verbosity, cs_inflow_sem_t *inflow, cs_real_t t_cur, const cs_real_3_t vel_m_l[], const cs_real_6_t rij_l[], const cs_real_t eps_l[], cs_real_3_t fluctuations[])
	Generation of synthetic turbulence via the Synthetic Eddy Method (SEM). More...
void	cs_les_rescale_fluctuations (cs_lnum_t n_points, const cs_real_6_t statistics[], cs_real_3_t fluctuations[])
	Rescale fluctuations by statistics following the Lund method. More...
void	cs_les_synthetic_eddy_set_n_restart_structures (int n_structures)
	Set number of structures used for volume SEM when restarting from another turbulence model. More...
int	cs_les_synthetic_eddy_get_n_restart_structures (void)
	Return number of structures used for volume SEM when restarting from another turbulence model. More...
void	cs_les_inflow_get_restart (bool *allow_read, bool *allow_write)
	Query behavior of the LES inflow module in case of restart. More...
void	cs_les_inflow_set_restart (bool allow_read, bool allow_write)
	Define behavior of the LES inflow module in case of restart. More...

Function Documentation

cs_les_inflow_add_inlet()

void cs_les_inflow_add_inlet	(	cs_les_inflow_type_t	type,
		bool	volume_mode,
		const cs_zone_t *	zone,
		int	n_entities,
		int	verbosity,
		const cs_real_t *	vel_r,
		cs_real_t	k_r,
		cs_real_t	eps_r
	)

Add an inlet definition for synthetic turbulence inflow generation.

Remarks

:

• eps_r is used only for CS_INFLOW_BATTEN and CS_INFLOW_SEM types.
• Strictly positive values are required for k_r and eps_r.
• Finer definition of the statistics of the flow at the inlet can be done later using cs_user_les_inflow_advanced.

Parameters

[out]	type	type of inflow method at the inlet
[out]	volume_mode	if true, generate turbulence over the whole domain (only if type is CS_INFLOW_SEM)
[in]	zone	pointer to associated boundary zone
[out]	n_entities	number of structures or modes
[out]	verbosity	verbosity level
[out]	vel_r	reference mean velocity
[out]	k_r	reference turbulent kinetic energy
[out]	eps_r	reference turbulent dissipation

cs_les_inflow_finalize()

void cs_les_inflow_finalize

(

void

)

Finalize turbulent inflow generation API.

cs_les_inflow_get_restart()

void cs_les_inflow_get_restart	(	bool *	allow_read,
		bool *	allow_write
	)

Query behavior of the LES inflow module in case of restart.

See cs_les_synthetic_eddy_set_restart for details.

Parameters

[out]	allow_read	pointer to read flag, or NULL
[out]	allow_write	pointer to write flag, or NULL

cs_les_inflow_initialize()

void cs_les_inflow_initialize

(

void

)

Creation of structures for the LES inflows.

cs_les_inflow_set_restart()

void cs_les_inflow_set_restart	(	bool	allow_read,
		bool	allow_write
	)

Define behavior of the LES inflow module in case of restart.

By default, a specific file is read if present in the restart folder, and files written in the checkpoint folder at global checkpoint intervals.

If not read, synthetic fluctuations are re-initialized.

Parameters

[in]	allow_read	allow reading a relevant checkpoint if present
[in]	allow_write	allow writing a relevant checkpoint if present

cs_les_rescale_fluctuations()

void cs_les_rescale_fluctuations	(	cs_lnum_t	n_points,
		const cs_real_6_t	statistics[],
		cs_real_3_t	fluctuations[]
	)

Rescale fluctuations by statistics following the Lund method.

One assumes that the statistics are interlaced and ordered as follows: <u'u'> <v'v'> <w'w'> <u'v'> <v'w'> <u'w'>

Parameters

[in]	n_points	local number of points where turbulence is generated
[in]	statistics	statistics (i.e. Reynolds stresses)

cs_les_synthetic_eddy_get_n_restart_structures()

int cs_les_synthetic_eddy_get_n_restart_structures

(

void

)

Return number of structures used for volume SEM when restarting from another turbulence model.

Returns

number of structures for initialization

cs_les_synthetic_eddy_method()

void cs_les_synthetic_eddy_method	(	cs_lnum_t	n_points,
		const cs_lnum_t	elt_ids[],
		const cs_real_3_t	point_coordinates[],
		const cs_real_t *	point_weight,
		int	initialize,
		int	verbosity,
		cs_inflow_sem_t *	inflow,
		cs_real_t	t_cur,
		const cs_real_3_t	vel_m_l[],
		const cs_real_6_t	rij_l[],
		const cs_real_t	eps_l[],
		cs_real_3_t	fluctuations[]
	)

Generation of synthetic turbulence via the Synthetic Eddy Method (SEM).

Parameters

[in]	n_points	local number of points where turbulence is generated
[in]	elt_ids	local id of inlet boundary faces
[in]	point_coordinates	point coordinates
[in]	point_weight	point weights (surface, volume or NULL)
[in]	initialize	initialization indicator
[in]	verbosity	verbosity level
[in]	inflow	pointer to structure for Batten method
[in]	t_cur	current time
[in]	vel_m_l	mean velocity at each point
[in]	rij_l	Reynolds stresses at each point
[in]	eps_l	dissipation rate at each point
[out]	fluctuations	velocity fluctuations at each point

cs_les_synthetic_eddy_restart_read()

void cs_les_synthetic_eddy_restart_read

(

void

)

cs_les_synthetic_eddy_restart_write()

void cs_les_synthetic_eddy_restart_write

(

void

)

cs_les_synthetic_eddy_set_n_restart_structures()

void cs_les_synthetic_eddy_set_n_restart_structures

(

int

n_structures

)

Set number of structures used for volume SEM when restarting from another turbulence model.

By default, a restart file is read if present, and a checkpoint written. If not read, synthetic fluctuations are re-initialized.

Parameters

[in]

n_structures

number of structures for initialization

synthe()

void synthe	(	const cs_real_t *const	ttcabs,
		const cs_real_t	dt[],
		cs_real_t	rcodcl[]
	)