Functions
void	cs_rad_transfer_bcs (int bc_type[])
	Compute wall temperature for radiative transfer, and update BCs. More...

void	cs_rad_transfer_bc_coeffs (int bc_type[], cs_real_t vect_s[3], cs_real_t ckmel[], cs_real_t bpro_eps[], cs_real_t w_gg[], int gg_id, cs_real_t coefap[], cs_real_t coefbp[], cs_real_t cofafp[], cs_real_t cofbfp[])
	Boundary conditions for DO and P-1 models. More...

Function Documentation

◆ cs_rad_transfer_bc_coeffs()

void cs_rad_transfer_bc_coeffs	(	int	bc_type[],
		cs_real_t	vect_s[3],
		cs_real_t	ckmel[],
		cs_real_t	bpro_eps[],
		cs_real_t	w_gg[],
		int	gg_id,
		cs_real_t	coefap[],
		cs_real_t	coefbp[],
		cs_real_t	cofafp[],
		cs_real_t	cofbfp[]
	)

Boundary conditions for DO and P-1 models.

The coefap array stores the intensity for each boundary face, depending of the nature of the boundary (Dirichlet condition). The intensity of radiation is defined as the rate of emitted energy from unit surface area through a unit solid angle.

1/ Gray wall: isotropic radiation field.

$coefap = \epsilon.\sigma.twall^4 / \pi + (1-\epsilon).qincid / \pi$

which is the sum of the wall emission and reflecting flux (eps=1: black wall; eps=0: reflecting wall).

2/ Free boundary: condition to mimic infinite domain

Parameters

[in]	bc_type	boundary face types
[in]	vect_s	direction vector or NULL
[in]	ckmel	Absoprtion coefficcient of the mixture gas-particules of coal
[in]	bpro_eps	Boundary emissivity, or NULL for solar radiation
[in]	w_gg	Weights of the i-th gray gas at boundaries
[in]	gg_id	number of the i-th grey gas
[out]	coefap	boundary conditions for intensity or P-1 model
[out]	coefbp	boundary conditions for intensity or P-1 model
[out]	cofafp	boundary conditions for intensity or P-1 model
[out]	cofbfp	boundary conditions for intensity or P-1 model

The coefap array stores the intensity for each boundary face, depending of the nature of the boundary (Dirichlet condition). The intensity of radiation is defined as the rate of emitted energy from unit surface area through a unit solid angle.

1/ Gray wall: isotropic radiation field.

$coefap = \epsilon.\sigma.twall^4 / \pi + (1-\epsilon).qincid / \pi$

which is the sum of the wall emission and reflecting flux (eps=1: black wall; eps=0: reflecting wall).

2/ Free boundary: condition to mimic infinite domain

Parameters

[in]	bc_type	boundary face types
[in]	vect_s	direction vector or NULL
[in]	ckmel	Absoprtion coefficcient of the mixture gas-particules of coal or NULL
[in]	bpro_eps	Boundary emissivity, or NULL for solar radiation
[in]	w_gg	Weights of the i-th gray gas at boundaries
[in]	gg_id	number of the i-th grey gas
[out]	coefap	boundary conditions for intensity or P-1 model
[out]	coefbp	boundary conditions for intensity or P-1 model
[out]	cofafp	boundary conditions for intensity or P-1 model
[out]	cofbfp	boundary conditions for intensity or P-1 model

◆ cs_rad_transfer_bcs()

void cs_rad_transfer_bcs ( int bc_type[] )

Compute wall temperature for radiative transfer, and update BCs.

1) Compute wall temperature for radiative transfer

2) Update BCs for the energy computation

Parameters

[in] bc_type face boundary condition type

1) Compute wall temperature for radiative transfer

2) Update BCs for the energy computation

Functions

Function Documentation

◆ cs_rad_transfer_bc_coeffs()

◆ cs_rad_transfer_bcs()

\param[in] bc_type face boundary condition type