#include "cs_defs.h"
#include "cs_equation.h"

Include dependency graph for cs_pressure_correction.h:

Data Structures
struct	cs_pressure_correction_cdo_t

Functions
void	cs_pressure_correction_fv_activate (void)
	Activate the pressure increment solving with Legacy FV. More...

void	cs_pressure_correction_cdo_destroy_all (void)
	Free the main structure related to the pressure correction. More...

void	cs_pressure_correction_cdo_activate (void)
	Activate the pressure increment solving with CDO. More...

void	cs_pressure_correction_model_activate (void)
	Activate the pressure increment, either FV or CDO. More...

bool	cs_pressure_correction_cdo_is_activated (void)
	Test if pressure solving with CDO is activated. More...

void	cs_pressure_correction_cdo_init_setup (void)
	Start setting-up the pressure increment equation At this stage, numerical settings should be completely determined but connectivity and geometrical information is not yet available. More...

void	cs_pressure_correction_cdo_finalize_setup (const cs_domain_t *domain)
	Finalize setting-up the pressure increment equation At this stage, numerical settings should be completely determined. More...

void	cs_pressure_correction (int iterns, cs_lnum_t nfbpcd, cs_lnum_t ncmast, cs_lnum_t ifbpcd[], cs_lnum_t ltmast[], const int isostd[], cs_real_t vel[][3], cs_real_t da_uu[][6], cs_field_bc_coeffs_t bc_coeffs_v, cs_field_bc_coeffs_t bc_coeffs_dp, cs_real_t spcond[], cs_real_t svcond[], cs_real_t frcxt[][3], cs_real_t dfrcxt[][3], cs_real_t i_visc[], cs_real_t b_visc[])
	Perform the pressure correction step of the Navier-Stokes equations for incompressible or slightly compressible flows. More...

Function Documentation

◆ cs_pressure_correction()

void cs_pressure_correction	(	int	iterns,
		cs_lnum_t	nfbpcd,
		cs_lnum_t	ncmast,
		cs_lnum_t	ifbpcd[],
		cs_lnum_t	ltmast[],
		const int	isostd[],
		cs_real_t	vel[][3],
		cs_real_t	da_uu[][6],
		cs_field_bc_coeffs_t *	bc_coeffs_v,
		cs_field_bc_coeffs_t *	bc_coeffs_dp,
		cs_real_t	spcond[],
		cs_real_t	svcond[],
		cs_real_t	frcxt[][3],
		cs_real_t	dfrcxt[][3],
		cs_real_t	i_visc[],
		cs_real_t	b_visc[]
	)

Perform the pressure correction step of the Navier-Stokes equations for incompressible or slightly compressible flows.

This function solves the following Poisson equation on the pressure:

$D \left( \Delta t, \delta p \right) = \divs \left( \rho \vect{\widetilde{u}}\right) - \Gamma^n + \dfrac{\rho^n - \rho^{n-1}}{\Delta t}$

Either the legacy FV method or a CDO face-based scheme is used.

For the legacy case, the mass flux is updated as follows:

$\dot{m}^{n+1}_\ij = \dot{m}^{n}_\ij - \Delta t \grad_\fij \delta p \cdot \vect{S}_\ij$

Remarks

:

an iterative process is used to solve the Poisson equation.
if the arak coefficient is set to 1, the the Rhie & Chow filter is activated.

Please refer to the resopv section of the theory guide for more information.

Parameters

[in]	iterns	Navier-Stokes iteration number
[in]	nfbpcd	number of faces with condensation source term
[in]	ncmast	number of cells with condensation source terms
[in]	ifbpcd	index of faces with condensation source term
[in]	ltmast	list of cells with condensation source terms (1 to n numbering)
[in]	isostd	indicator of standard outlet and index of the reference outlet face
[in]	vel	velocity
[in,out]	da_uu	velocity matrix
[in]	bc_coeffs_v	boundary condition structure for the variable
[in]	bc_coeffs_dp	boundary conditions structure for the pressure increment
[in]	spcond	variable value associated to the condensation source term (for ivar=ipr, spcond is the flow rate $\Gamma_{s,cond}^n$ )
[in]	svcond	variable value associated to the condensation source term (for ivar=ipr, svcond is the flow rate $\Gamma_{v, cond}^n$ )
[in]	frcxt	external forces making hydrostatic pressure
[in]	dfrcxt	variation of the external forces composing the hydrostatic pressure
[in]	i_visc	visc*surface/dist aux faces internes
[in]	b_visc	visc*surface/dist aux faces de bord

◆ cs_pressure_correction_cdo_activate()

void cs_pressure_correction_cdo_activate ( void )

Activate the pressure increment solving with CDO.

◆ cs_pressure_correction_cdo_destroy_all()

void cs_pressure_correction_cdo_destroy_all ( void )

Free the main structure related to the pressure correction.

◆ cs_pressure_correction_cdo_finalize_setup()

void cs_pressure_correction_cdo_finalize_setup ( const cs_domain_t * domain )

Finalize setting-up the pressure increment equation At this stage, numerical settings should be completely determined.

Parameters

[in] domain pointer to a cs_domaint_t structure

◆ cs_pressure_correction_cdo_init_setup()

void cs_pressure_correction_cdo_init_setup ( void )

Start setting-up the pressure increment equation At this stage, numerical settings should be completely determined but connectivity and geometrical information is not yet available.

◆ cs_pressure_correction_cdo_is_activated()

bool cs_pressure_correction_cdo_is_activated ( void )

Test if pressure solving with CDO is activated.

Returns: true if solving with CDO is requested, false otherwise

◆ cs_pressure_correction_fv_activate()

void cs_pressure_correction_fv_activate ( void )

Activate the pressure increment solving with Legacy FV.

◆ cs_pressure_correction_model_activate()

void cs_pressure_correction_model_activate ( void )

Activate the pressure increment, either FV or CDO.

Data Structures

Functions