cs_user_fluid_structure_interaction.c File Reference

User-defined functions dedicated to Fluid-Structure interaction modeling. More...

#include "cs_defs.h"
#include <assert.h>
#include <math.h>
#include "cs_headers.h"

Include dependency graph for cs_user_fluid_structure_interaction.c:

Functions
void	cs_user_fsi_structure_define (int is_restart, int n_structs, int *plot, cs_time_control_t *plot_time_control, cs_real_t *aexxst, cs_real_t *bexxst, cs_real_t *cfopre, cs_real_t xstr0[][3], cs_real_t vstr0[][3], cs_real_t xstreq[][3])
	Definition of internal mobile structures and corresponding initial conditions (initial displacement and velocity ). More...
void	cs_user_fsi_structure_values (int n_structs, const cs_time_step_t *ts, const cs_real_t xstreq[][3], const cs_real_t xstr[][3], const cs_real_t vstr[][3], cs_real_t xmstru[][3][3], cs_real_t xcstru[][3][3], cs_real_t xkstru[][3][3], cs_real_t forstr[][3], cs_real_t dtstr[])
	Time-based settings for internal mobile structures. More...
void	cs_user_fsi_structure_num (cs_domain_t *domain, int structure_num[])
	Define structure numbers for faces associated with internal or external (code_aster) structures. More...

Detailed Description

User-defined functions dedicated to Fluid-Structure interaction modeling.

Function Documentation

cs_user_fsi_structure_define()

void cs_user_fsi_structure_define	(	int	is_restart,
		int	n_structs,
		int *	plot,
		cs_time_control_t *	plot_time_control,
		cs_real_t *	aexxst,
		cs_real_t *	bexxst,
		cs_real_t *	cfopre,
		cs_real_t	xstr0[][3],
		cs_real_t	vstr0[][3],
		cs_real_t	xstreq[][3]
	)

Definition of internal mobile structures and corresponding initial conditions (initial displacement and velocity ).

Parameters

[in]	is_restart	indicate if computation is restarted
[in]	n_structs	number of mobile structures
[in,out]	plot;	monitoring format mask 0: no plot 1: plot to text (.dat) format 2: plot to .csv format 3: plot to both formats
[in,out]	plot_time_control	plot time output frequency control
[in,out]	aexxst	coefficient for predicted displacement
[in,out]	bexxst	coefficient for predicted displacement
[in,out]	cfopre	coefficient for predicted force
[in,out]	xstr0	initial displacement per structure
[in,out]	vstr0	initial velocity per structure
[in,out]	xstreq	displacement of initial mesh relative to structures position at equilibrium
[in,out]	plot_time_control	time control associated to plotting

cs_user_fsi_structure_num()

void cs_user_fsi_structure_num	(	cs_domain_t *	domain,
		int	structure_num[]
	)

Define structure numbers for faces associated with internal or external (code_aster) structures.

Structure numbers associated to a given face have the following values:

• -i where coupled to i-th (1-to n) external (code_aster) structure.
• 0 where not coupled with an internal or external structure.
• i where coupled to i-th (1-to n) internal (mass-spring) structure.

Parameters

[in,out]	domain	pointer to a cs_domain_t structure
[in,out]	structure_num	structure id associated to each face

cs_user_fsi_structure_values()

void cs_user_fsi_structure_values	(	int	n_structs,
		const cs_time_step_t *	ts,
		const cs_real_t	xstreq[][3],
		const cs_real_t	xstr[][3],
		const cs_real_t	vstr[][3],
		cs_real_t	xmstru[][3][3],
		cs_real_t	xcstru[][3][3],
		cs_real_t	xkstru[][3][3],
		cs_real_t	forstr[][3],
		cs_real_t	dtstr[]
	)

Time-based settings for internal mobile structures.

Parameters

[in]	n_structs	number of mobile structures
[in]	ts	time step structure
[in]	xstreq	displacement of initial mesh rel. to equilibrium
[in]	xstr	structural displacement
[in]	vstr	structural velocity
[in,out]	xmstru	matrix of structural mass
[in,out]	xcstru	matrix of structural friction
[in,out]	xkstru	matrix of structural stiffness
[in,out]	forstr	forces acting on structures (take forces)
[in,out]	dtstr	structural time step