8.1
general documentation
Data Structures | Enumerations | Functions | Variables
cs_turbulence_model.h File Reference
#include "cs_defs.h"
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Data Structures

struct  cs_turb_model_t
 Turbulence model general options descriptor. More...
 
struct  cs_turb_ref_values_t
 
struct  cs_turb_rans_model_t
 RANS turbulence model descriptor. More...
 
struct  cs_turb_les_model_t
 LES turbulence model descriptor. More...
 
struct  cs_turb_hybrid_model_t
 Hybrid turbulence model descriptor. More...
 

Enumerations

enum  cs_turb_model_type_t {
  CS_TURB_NONE = 0 , CS_TURB_MIXING_LENGTH = 10 , CS_TURB_K_EPSILON = 20 , CS_TURB_K_EPSILON_LIN_PROD = 21 ,
  CS_TURB_K_EPSILON_LS = 22 , CS_TURB_K_EPSILON_QUAD = 23 , CS_TURB_RIJ_EPSILON_LRR = 30 , CS_TURB_RIJ_EPSILON_SSG = 31 ,
  CS_TURB_RIJ_EPSILON_EBRSM = 32 , CS_TURB_LES_SMAGO_CONST = 40 , CS_TURB_LES_SMAGO_DYN = 41 , CS_TURB_LES_WALE = 42 ,
  CS_TURB_V2F_PHI = 50 , CS_TURB_V2F_BL_V2K = 51 , CS_TURB_K_OMEGA = 60 , CS_TURB_SPALART_ALLMARAS = 70
}
 
enum  { CS_TURB_TYPE_NONE = 0 , CS_TURB_RANS = 1 , CS_TURB_LES = 2 , CS_TURB_HYBRID = 3 }
 
enum  { CS_TURB_ALGEBRAIC = 0 , CS_TURB_FIRST_ORDER = 1 , CS_TURB_SECOND_ORDER = 2 }
 
enum  {
  CS_HYBRID_NONE = 0 , CS_HYBRID_DES = 1 , CS_HYBRID_DDES = 2 , CS_HYBRID_SAS = 3 ,
  CS_HYBRID_HTLES = 4
}
 

Functions

void cs_turb_model_init (void)
 Initialize turbulence model structures. More...
 
void cs_set_type_order_turbulence_model (void)
 Initialize type and order members of turbulence model structure. More...
 
void cs_set_glob_turb_model (void)
 Set global pointer to turbulence model structure. More...
 
cs_turb_model_t * cs_get_glob_turb_model (void)
 Provide write access to turbulence model structure. More...
 
void cs_turb_compute_constants (int phase_id)
 Compute turbulence model constants, some of which may depend on the model choice. More...
 
cs_turb_ref_values_t * cs_get_glob_turb_ref_values (void)
 Provide access to cs_glob_turb_ref_values. More...
 
cs_turb_rans_model_t * cs_get_glob_turb_rans_model (void)
 Provide access to cs_glob_turb_rans_model. More...
 
cs_turb_les_model_t * cs_get_glob_turb_les_model (void)
 Provide access to cs_glob_turb_les_model. More...
 
cs_turb_hybrid_model_t * cs_get_glob_turb_hybrid_model (void)
 Provide access to cs_glob_turb_hybrid_model. More...
 
void cs_turb_model_log_setup (void)
 Print the turbulence model parameters to setup.log. More...
 
void cs_turb_constants_log_setup (void)
 Print the turbulent constants to setup.log. More...
 
void cs_turb_init_ref_quantities (void)
 Compute characteristic length for turbulence if not already done. More...
 
void cs_clip_turbulent_fluxes (int flux_id, int ivartt)
 Clipping for the turbulence flux vector. More...
 
void cs_turbulence_function_k (int location_id, cs_lnum_t n_elts, const cs_lnum_t *elt_ids, void *input, void *vals)
 Return or estimate the value of the turbulent kinetic energy over specified elements. More...
 
void cs_turbulence_function_eps (int location_id, cs_lnum_t n_elts, const cs_lnum_t *elt_ids, void *input, void *vals)
 Return or estimate the value of the turbulent dissipation over specified elements. More...
 
void cs_turbulence_function_rij (int location_id, cs_lnum_t n_elts, const cs_lnum_t *elt_ids, void *input, void *vals)
 Return or estimate the value of the Reynolds stresses over specified elements. More...
 

Variables

const cs_turb_model_t * cs_glob_turb_model
 
const cs_turb_ref_values_t * cs_glob_turb_ref_values
 
const cs_turb_rans_model_t * cs_glob_turb_rans_model
 
const cs_turb_les_model_t * cs_glob_turb_les_model
 
const cs_turb_hybrid_model_t * cs_glob_turb_hybrid_model
 
double cs_turb_xkappa
 
double cs_turb_vdriest
 
double cs_turb_cstlog
 
double cs_turb_cstlog_rough
 
double cs_turb_cstlog_alpha
 
double cs_turb_apow
 
double cs_turb_bpow
 
double cs_turb_dpow
 
double cs_turb_cmu
 
double cs_turb_cmu025
 
double cs_turb_ce1
 
double cs_turb_ce2
 
double cs_turb_ce4
 
double cs_turb_crij1
 
double cs_turb_crij2
 
double cs_turb_crij3
 
double cs_turb_crij_c0
 
double cs_turb_crijp1
 
double cs_turb_crijp2
 
double cs_turb_cssge2
 
double cs_turb_cssgs1
 
double cs_turb_cssgs2
 
double cs_turb_cssgr1
 
double cs_turb_cssgr2
 
double cs_turb_cssgr3
 
double cs_turb_cssgr4
 
double cs_turb_cssgr5
 
double cs_turb_cebms1
 
double cs_turb_cebms2
 
double cs_turb_cebmr1
 
double cs_turb_cebmr2
 
double cs_turb_cebmr3
 
double cs_turb_cebmr4
 
double cs_turb_cebmr5
 
double cs_turb_csrij
 
double cs_turb_cebme2
 
double cs_turb_cebmmu
 
double cs_turb_xcl
 
double cs_turb_xa1
 
double cs_turb_xct
 
double cs_turb_xclt
 
double cs_turb_xceta
 
double cs_turb_cpale1
 
double cs_turb_cpale2
 
double cs_turb_cpale3
 
double cs_turb_cpale4
 
double cs_turb_cpalc1
 
double cs_turb_cpalc2
 
double cs_turb_cpalct
 
double cs_turb_cpalcl
 
double cs_turb_cpalet
 
double cs_turb_ckwsk1
 
double cs_turb_ckwsk2
 
double cs_turb_ckwsw1
 
double cs_turb_ckwsw2
 
double cs_turb_ckwbt1
 
double cs_turb_ckwbt2
 
double cs_turb_ckwgm1
 
double cs_turb_ckwgm2
 
double cs_turb_ckwa1
 
double cs_turb_ckwc1
 
double cs_turb_cddes
 
double cs_turb_csas
 
double cs_turb_csas_eta2
 
double cs_turb_chtles_bt0
 
double cs_turb_cnl1
 
double cs_turb_cnl2
 
double cs_turb_cnl3
 
double cs_turb_cnl4
 
double cs_turb_cnl5
 
double cs_turb_csab1
 
double cs_turb_csab2
 
double cs_turb_csasig
 
double cs_turb_csav1
 
double cs_turb_csaw1
 
double cs_turb_csaw2
 
double cs_turb_csaw3
 
double cs_turb_cssr1
 
double cs_turb_cssr2
 
double cs_turb_cssr3
 
double cs_turb_ccaze2
 
double cs_turb_ccazsc
 
double cs_turb_ccaza
 
double cs_turb_ccazb
 
double cs_turb_ccazc
 
double cs_turb_ccazd
 
double cs_turb_xlesfl
 
double cs_turb_ales
 
double cs_turb_bles
 
double cs_turb_csmago
 
double cs_turb_xlesfd
 
double cs_turb_csmago_max
 
double cs_turb_csmago_min
 
double cs_turb_cdries
 
double cs_turb_cv2fa1
 
double cs_turb_cv2fe2
 
double cs_turb_cv2fc1
 
double cs_turb_cv2fc2
 
double cs_turb_cv2fct
 
double cs_turb_cv2fcl
 
double cs_turb_cv2fet
 
double cs_turb_cwale
 
double cs_turb_xiafm
 
double cs_turb_etaafm
 
double cs_turb_c1trit
 
double cs_turb_c2trit
 
double cs_turb_c3trit
 
double cs_turb_c4trit
 
double cs_turb_cthafm
 
double cs_turb_cthdfm
 
double cs_turb_cthebdfm
 

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
CS_TURB_TYPE_NONE 
CS_TURB_RANS 
CS_TURB_LES 
CS_TURB_HYBRID 

◆ anonymous enum

anonymous enum
Enumerator
CS_TURB_ALGEBRAIC 
CS_TURB_FIRST_ORDER 
CS_TURB_SECOND_ORDER 

◆ anonymous enum

anonymous enum
Enumerator
CS_HYBRID_NONE 
CS_HYBRID_DES 
CS_HYBRID_DDES 
CS_HYBRID_SAS 
CS_HYBRID_HTLES 

◆ cs_turb_model_type_t

enum cs_turb_model_type_t
Enumerator
CS_TURB_NONE 
CS_TURB_MIXING_LENGTH 
CS_TURB_K_EPSILON 
CS_TURB_K_EPSILON_LIN_PROD 
CS_TURB_K_EPSILON_LS 
CS_TURB_K_EPSILON_QUAD 
CS_TURB_RIJ_EPSILON_LRR 
CS_TURB_RIJ_EPSILON_SSG 
CS_TURB_RIJ_EPSILON_EBRSM 
CS_TURB_LES_SMAGO_CONST 
CS_TURB_LES_SMAGO_DYN 
CS_TURB_LES_WALE 
CS_TURB_V2F_PHI 
CS_TURB_V2F_BL_V2K 
CS_TURB_K_OMEGA 
CS_TURB_SPALART_ALLMARAS 

Function Documentation

◆ cs_clip_turbulent_fluxes()

void cs_clip_turbulent_fluxes ( int  flux_id,
int  variance_id 
)

Clipping for the turbulence flux vector.

Parameters
[in]flux_idturbulent flux index
[in]variance_idscalar variance index

◆ cs_get_glob_turb_hybrid_model()

cs_turb_hybrid_model_t* cs_get_glob_turb_hybrid_model ( void  )

Provide access to cs_glob_turb_hybrid_model.

needed to initialize structure with GUI

◆ cs_get_glob_turb_les_model()

cs_turb_les_model_t* cs_get_glob_turb_les_model ( void  )

Provide access to cs_glob_turb_les_model.

needed to initialize structure with GUI

◆ cs_get_glob_turb_model()

cs_turb_model_t* cs_get_glob_turb_model ( void  )

Provide write access to turbulence model structure.

◆ cs_get_glob_turb_rans_model()

cs_turb_rans_model_t* cs_get_glob_turb_rans_model ( void  )

Provide access to cs_glob_turb_rans_model.

needed to initialize structure with GUI

◆ cs_get_glob_turb_ref_values()

cs_turb_ref_values_t* cs_get_glob_turb_ref_values ( void  )

Provide access to cs_glob_turb_ref_values.

needed to initialize structure with GUI

◆ cs_set_glob_turb_model()

void cs_set_glob_turb_model ( void  )

Set global pointer to turbulence model structure.

This global pointer provides a read-only access to the structure.

◆ cs_set_type_order_turbulence_model()

void cs_set_type_order_turbulence_model ( void  )

Initialize type and order members of turbulence model structure.

◆ cs_turb_compute_constants()

void cs_turb_compute_constants ( int  phase_id)

Compute turbulence model constants, some of which may depend on the model choice.

Parameters
[in]phase_idturbulent phase id (-1 for single phase flow)

◆ cs_turb_constants_log_setup()

void cs_turb_constants_log_setup ( void  )

Print the turbulent constants to setup.log.

◆ cs_turb_init_ref_quantities()

void cs_turb_init_ref_quantities ( void  )

Compute characteristic length for turbulence if not already done.

◆ cs_turb_model_init()

void cs_turb_model_init ( void  )

Initialize turbulence model structures.

◆ cs_turb_model_log_setup()

void cs_turb_model_log_setup ( void  )

Print the turbulence model parameters to setup.log.

◆ cs_turbulence_function_eps()

void cs_turbulence_function_eps ( int  location_id,
cs_lnum_t  n_elts,
const cs_lnum_t *  elt_ids,
void *  input,
void *  vals 
)

Return or estimate the value of the turbulent dissipation over specified elements.

Returned values are zero for turbulence models other than RANS.

This function matches the cs_eval_at_location_t function profile.

Parameters
[in]location_idbase associated mesh location id
[in]n_eltsnumber of associated elements
[in]elt_idsids of associated elements, or NULL if no filtering is required
[in,out]inputignored
[in,out]valspointer to output values (size: n_elts*dimension)

◆ cs_turbulence_function_k()

void cs_turbulence_function_k ( int  location_id,
cs_lnum_t  n_elts,
const cs_lnum_t *  elt_ids,
void *  input,
void *  vals 
)

Return or estimate the value of the turbulent kinetic energy over specified elements.

Returned values are zero for turbulence models other than RANS.

This function matches the cs_eval_at_location_t function profile.

Parameters
[in]location_idbase associated mesh location id
[in]n_eltsnumber of associated elements
[in]elt_idsids of associated elements, or NULL if no filtering is required
[in,out]inputignored
[in,out]valspointer to output values (size: n_elts*dimension)

◆ cs_turbulence_function_rij()

void cs_turbulence_function_rij ( int  location_id,
cs_lnum_t  n_elts,
const cs_lnum_t *  elt_ids,
void *  input,
void *  vals 
)

Return or estimate the value of the Reynolds stresses over specified elements.

Returned values are zero for turbulence models other than RANS.

This function matches the cs_eval_at_location_t function profile.

Parameters
[in]location_idbase associated mesh location id
[in]n_eltsnumber of associated elements
[in]elt_idsids of associated elements, or NULL if no filtering is required
[in,out]inputignored
[in,out]valspointer to output values (size: n_elts*dimension)

Variable Documentation

◆ cs_glob_turb_hybrid_model

const cs_turb_hybrid_model_t* cs_glob_turb_hybrid_model
extern

◆ cs_glob_turb_les_model

const cs_turb_les_model_t* cs_glob_turb_les_model
extern

◆ cs_glob_turb_model

const cs_turb_model_t* cs_glob_turb_model
extern

◆ cs_glob_turb_rans_model

const cs_turb_rans_model_t* cs_glob_turb_rans_model
extern

◆ cs_glob_turb_ref_values

const cs_turb_ref_values_t* cs_glob_turb_ref_values
extern

◆ cs_turb_ales

double cs_turb_ales
extern

Constant used to define, for each cell $\Omega_i$, the width of the (implicit) filter:

  • $\overline{\Delta}=xlesfl(ales*|\Omega_i|)^{bles}$

Useful if and only if iturb = 40 or 41.

◆ cs_turb_apow

double cs_turb_apow
extern

Werner and Wengle coefficient

◆ cs_turb_bles

double cs_turb_bles
extern

Constant used to define, for each cell $Omega_i$, the width of the (implicit) filter:

  • $\overline{\Delta}=xlesfl(ales*|\Omega_i|)^{bles}$

Useful if and only if iturb = 40 or 41.

◆ cs_turb_bpow

double cs_turb_bpow
extern

Werner and Wengle coefficient

◆ cs_turb_c1trit

double cs_turb_c1trit
extern

Coefficient of turbulent DFM flow model.

◆ cs_turb_c2trit

double cs_turb_c2trit
extern

Coefficient of turbulent DFM flow model.

◆ cs_turb_c3trit

double cs_turb_c3trit
extern

Coefficient of turbulent DFM flow model.

◆ cs_turb_c4trit

double cs_turb_c4trit
extern

Coefficient of turbulent DFM flow model.

◆ cs_turb_ccaza

double cs_turb_ccaza
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_ccazb

double cs_turb_ccazb
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_ccazc

double cs_turb_ccazc
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_ccazd

double cs_turb_ccazd
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_ccaze2

double cs_turb_ccaze2
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_ccazsc

double cs_turb_ccazsc
extern

Constants of the Cazalbou rotation/curvature correction.

◆ cs_turb_cddes

double cs_turb_cddes
extern

Constant $ C_{DDES} $ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST) and hybrid_turb=1.

◆ cs_turb_cdries

double cs_turb_cdries
extern

Van Driest constant appearing in the van Driest damping function applied to the Smagorinsky constant:

  • $ (1-\exp^{(-y^+/cdries}) $.

Useful if and only if iturb = 40 or 41.

◆ cs_turb_ce1

double cs_turb_ce1
extern

Constant $C_{\varepsilon 1}$ for all the RANS turbulence models except for the v2f and the $k-\omega$ models. Useful if and only if iturb= 20, 21, 30 or 31 ( $k-\varepsilon$ or $R_{ij}-\varepsilon$).

◆ cs_turb_ce2

double cs_turb_ce2
extern

Constant $C_{\varepsilon 2}$ for the $k-\varepsilon$ and $R_{ij}-\varepsilon$ LRR models. Useful if and only if iturb = 20, 21 or 30 ( $k-\varepsilon$ or $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_ce4

double cs_turb_ce4
extern

Coefficient of interfacial coefficient in k-eps, used in Lagrange treatment.

Constant $C_{\varepsilon 4}$ for the interfacial term (Lagrangian module) in case of two-way coupling. Useful in case of Lagrangian modelling, in $k-\varepsilon$ and $R_{ij}-\varepsilon$ with two-way coupling.

◆ cs_turb_cebme2

double cs_turb_cebme2
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_cebmmu

double cs_turb_cebmmu
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_cebmr1

double cs_turb_cebmr1
extern

◆ cs_turb_cebmr2

double cs_turb_cebmr2
extern

◆ cs_turb_cebmr3

double cs_turb_cebmr3
extern

◆ cs_turb_cebmr4

double cs_turb_cebmr4
extern

◆ cs_turb_cebmr5

double cs_turb_cebmr5
extern

◆ cs_turb_cebms1

double cs_turb_cebms1
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_cebms2

double cs_turb_cebms2
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_chtles_bt0

double cs_turb_chtles_bt0
extern

Constant $ \beta_0 $ for the HTLES model. Useful if and only if iturb=60 ( $k-\omega$ SST) or if iturb=51 ( $BL-v^2-k$) and hybrid_turb=4.

◆ cs_turb_ckwa1

double cs_turb_ckwa1
extern

Specific constant of k-omega SST. Constant $a_1$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

◆ cs_turb_ckwbt1

double cs_turb_ckwbt1
extern

Constant $\beta_1$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

◆ cs_turb_ckwbt2

double cs_turb_ckwbt2
extern

Constant $\beta_2$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

◆ cs_turb_ckwc1

double cs_turb_ckwc1
extern

Constant $ c_1 $ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST). Specific constant of k-omega SST.

◆ cs_turb_ckwgm1

double cs_turb_ckwgm1
extern

$\frac{\beta_1}{C_\mu}-\frac{\kappa^2}{\sqrt{C_\mu}\sigma_{\omega 1}}$. Constant $\gamma_1$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

Warning
: $\gamma_1$ is calculated before the call to usipsu. Hence, if $\beta_1$, $C_\mu$, $\kappa$ or $\sigma_{\omega 1}$ is modified in usipsu, cs_turb_ckwgm1 must also be modified in accordance.

◆ cs_turb_ckwgm2

double cs_turb_ckwgm2
extern

$\frac{\beta_2}{C_\mu}-\frac{\kappa^2}{\sqrt{C_\mu}\sigma_{\omega 2}}$. Constant $\gamma_2$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

Warning
: $\gamma_2$ is calculated before the call to usipsu. Hence, if $\beta_2$, $C_\mu$, $\kappa$ or $\sigma_{\omega 2}$ is modified in usipsu, cs_turb_ckwgm2 must also be modified in accordance.

◆ cs_turb_ckwsk1

double cs_turb_ckwsk1
extern

Constant $\sigma_{k1}$ for the $k-\omega$ SST model. Useful if and only if iturb=60.

◆ cs_turb_ckwsk2

double cs_turb_ckwsk2
extern

Constant $\sigma_{k2}$ for the $k-\omega$ SST model. Useful if and only if iturb=60.

◆ cs_turb_ckwsw1

double cs_turb_ckwsw1
extern

Constant $\sigma_{\omega 1}$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

◆ cs_turb_ckwsw2

double cs_turb_ckwsw2
extern

Constant $\sigma_{\omega 2}$ for the $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST).

◆ cs_turb_cmu

double cs_turb_cmu
extern

Constant $C_\mu$ for all the RANS turbulence models. Warning: different value for v2f models. Useful only for RANS models ( $k-\varepsilon$, $R_{ij}-\varepsilon$ or $k-\omega$).

◆ cs_turb_cmu025

double cs_turb_cmu025
extern

$ C_\mu^\frac{1}{4} $

◆ cs_turb_cnl1

double cs_turb_cnl1
extern

Constants for the Baglietto et al. quadratic k-epsilon model. Useful if and only if iturb = CS_TURB_K_EPSILON_QUAD

◆ cs_turb_cnl2

double cs_turb_cnl2
extern

◆ cs_turb_cnl3

double cs_turb_cnl3
extern

◆ cs_turb_cnl4

double cs_turb_cnl4
extern

◆ cs_turb_cnl5

double cs_turb_cnl5
extern

◆ cs_turb_cpalc1

double cs_turb_cpalc1
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpalc2

double cs_turb_cpalc2
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpalcl

double cs_turb_cpalcl
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpalct

double cs_turb_cpalct
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpale1

double cs_turb_cpale1
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpale2

double cs_turb_cpale2
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpale3

double cs_turb_cpale3
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpale4

double cs_turb_cpale4
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_cpalet

double cs_turb_cpalet
extern

Specific constant of v2f "BL-v2k" (or phi-alpha).

◆ cs_turb_crij1

double cs_turb_crij1
extern

Constant $C_1$ for the $R_{ij}-\varepsilon$ LRR model. Useful if and only if iturb=30 ( $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_crij2

double cs_turb_crij2
extern

Constant $C_2$ for the $R_{ij}-\varepsilon$ LRR model. Useful if and only if iturb=30 ( $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_crij3

double cs_turb_crij3
extern

Constant $C_3$ for the $R_{ij}-\varepsilon$ models. Value is 0.55 for SSG and LRR, 0.6 for EBRSM.

◆ cs_turb_crij_c0

double cs_turb_crij_c0
extern

Rotta constant $C_0$ for the $R_{ij}-\varepsilon$ model. Useful for the Lagrangian model. The value is set from $C_1$ if and only if iturb=CS_TURB_RIJ_EPSILON_LRR ( $R_{ij}-\varepsilon$ LRR) and $C_2=0$.

◆ cs_turb_crijp1

double cs_turb_crijp1
extern

Constant $C_1^\prime$ for the $R_{ij}-\varepsilon$ LRR model, corresponding to the wall echo terms. Useful if and only if iturb=30 and cs_turb_rans_model_t::irijec=1 ( $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_crijp2

double cs_turb_crijp2
extern

Constant $C_2^\prime$ for the $R_{ij}-\varepsilon$ LRR model, corresponding to the wall echo terms. Useful if and only if iturb=30 and cs_turb_rans_model_t::irijec=1 ( $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_csab1

double cs_turb_csab1
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csab2

double cs_turb_csab2
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csas

double cs_turb_csas
extern

Constant $ C_{SAS}$ for the hybrid $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST) and hybrid_turb=3.

◆ cs_turb_csas_eta2

double cs_turb_csas_eta2
extern

constant $ C_{DDES}$ for the hybrid $k-\omega$ SST model. Useful if and only if iturb=60 ( $k-\omega$ SST) and hybrid_turb=3.

◆ cs_turb_csasig

double cs_turb_csasig
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csav1

double cs_turb_csav1
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csaw1

double cs_turb_csaw1
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csaw2

double cs_turb_csaw2
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csaw3

double cs_turb_csaw3
extern

Specific constant of Spalart-Allmaras.

◆ cs_turb_csmago

double cs_turb_csmago
extern

Smagorinsky constant used in the Smagorinsky model for LES. The sub-grid scale viscosity is calculated by $\displaystyle\mu_{sg}= \rho C_{smago}^2\bar{\Delta}^2\sqrt{2\bar{S}_{ij}\bar{S}_{ij}}$ where $\bar{\Delta}$ is the width of the filter and $\bar{S}_{ij}$ the filtered strain rate.

Useful if and only if iturb = 40.

Note
In theory Smagorinsky constant is 0.18. For a channel, 0.065 value is rather taken.

◆ cs_turb_csmago_max

double cs_turb_csmago_max
extern

Maximum allowed value for the variable $C$ appearing in the LES dynamic model. Any larger value yielded by the calculation procedure of the dynamic model will be clipped to $ smagmx$.

Useful if and only if iturb = 41.

◆ cs_turb_csmago_min

double cs_turb_csmago_min
extern

Minimum allowed value for the variable $C$ appearing in the LES dynamic model. Any smaller value yielded by the calculation procedure of the dynamic model will be clipped to $ smagmn$.

Useful if and only if iturb = 41.

◆ cs_turb_csrij

double cs_turb_csrij
extern

Constant $C_s$ for the $R_{ij}-\varepsilon$ LRR model. Useful if and only if iturb=30 ( $R_{ij}-\varepsilon$ LRR).

◆ cs_turb_cssge2

double cs_turb_cssge2
extern

Constant $C_{\varepsilon 2}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgr1

double cs_turb_cssgr1
extern

Constant $C_{r1}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgr2

double cs_turb_cssgr2
extern

Constant $C_{r2}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgr3

double cs_turb_cssgr3
extern

Constant $C_{r3}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgr4

double cs_turb_cssgr4
extern

constant $C_{r4}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgr5

double cs_turb_cssgr5
extern

Constant $C_{r1}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgs1

double cs_turb_cssgs1
extern

Constant $C_{s1}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssgs2

double cs_turb_cssgs2
extern

Constant $C_{s2}$ for the $R_{ij}-\varepsilon$ SSG model. Useful if and only if iturb=31 ( $R_{ij}-\varepsilon$ SSG).

◆ cs_turb_cssr1

double cs_turb_cssr1
extern

Constant of the Spalart-Shur rotation/curvature correction.

◆ cs_turb_cssr2

double cs_turb_cssr2
extern

Constant of the Spalart-Shur rotation/curvature correction.

◆ cs_turb_cssr3

double cs_turb_cssr3
extern

Constant of the Spalart-Shur rotation/curvature correction.

◆ cs_turb_cstlog

double cs_turb_cstlog
extern

Constant of logarithmic smooth law function: $ \dfrac{1}{\kappa} \ln(y^+) + cstlog $ ( $ cstlog = 5.2 $).

Constant of the logarithmic wall function. Useful if and only if iturb >= 10 (mixing length, $k-\varepsilon$, $R_{ij}-\varepsilon$, LES, v2f or $k-\omega$).

◆ cs_turb_cstlog_alpha

double cs_turb_cstlog_alpha
extern

Constant $ \alpha $ for logarithmic law function switching from rough to smooth: $ \dfrac{1}{\kappa} \ln(y u_k/(\nu + \alpha \xi u_k)) + cstlog $ ( $ \alpha = \exp \left( -\kappa (8.5 - 5.2) \right) $).

Useful if and only if iturb >= 10 (mixing length, $k-\varepsilon$, $R_{ij}-\varepsilon$, LES, v2f or $k-\omega$).

◆ cs_turb_cstlog_rough

double cs_turb_cstlog_rough
extern

Constant of logarithmic rough law function: $ \dfrac{1}{\kappa} \ln(y/\xi) + cstlog_{rough} $ ( $ cstlog_{rough} = 8.5 $).

Constant of the logarithmic wall function. Useful if and only if iturb >= 10 (mixing length, $k-\varepsilon$, $R_{ij}-\varepsilon$, LES, v2f or $k-\omega$).

◆ cs_turb_cthafm

double cs_turb_cthafm
extern

Constant of GGDH and AFM on the thermal scalar.

◆ cs_turb_cthdfm

double cs_turb_cthdfm
extern

Constant of GGDH and AFM on the thermal scalar.

◆ cs_turb_cthebdfm

double cs_turb_cthebdfm
extern

◆ cs_turb_cv2fa1

double cs_turb_cv2fa1
extern

Constant $a_1$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fc1

double cs_turb_cv2fc1
extern

Constant $C_1$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fc2

double cs_turb_cv2fc2
extern

Constant $C_2$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fcl

double cs_turb_cv2fcl
extern

Constant $C_L$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fct

double cs_turb_cv2fct
extern

Constant $C_T$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fe2

double cs_turb_cv2fe2
extern

Constant $C_{\varepsilon 2}$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cv2fet

double cs_turb_cv2fet
extern

Constant $C_\eta$ for the v2f $\varphi$-model. Useful if and only if iturb=50 (v2f $\varphi$-model).

◆ cs_turb_cwale

double cs_turb_cwale
extern

Constant of the WALE LES method.

◆ cs_turb_dpow

double cs_turb_dpow
extern

Werner and Wengle coefficient

◆ cs_turb_etaafm

double cs_turb_etaafm
extern

Coefficient of turbulent AFM flow model.

◆ cs_turb_vdriest

double cs_turb_vdriest
extern

Van Driest constant. (= 25.6)

Useful if and only if cs_glob_wall_functions::iwallf = CS_WALL_F_2SCALES_VDRIEST. (Two scales log law at the wall using Van Driest mixing length expression).

◆ cs_turb_xa1

double cs_turb_xa1
extern

Constant in the expression of Ce1' for the Rij-epsilon EBRSM.

◆ cs_turb_xceta

double cs_turb_xceta
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_xcl

double cs_turb_xcl
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_xclt

double cs_turb_xclt
extern

constant of EB-AFM and EB-DFM (0.122*2.5, See F. Dehoux thesis)

◆ cs_turb_xct

double cs_turb_xct
extern

Constant of the Rij-epsilon EBRSM.

◆ cs_turb_xiafm

double cs_turb_xiafm
extern

Coefficient of turbulent AFM flow model.

◆ cs_turb_xkappa

double cs_turb_xkappa
extern

Karman constant. (= 0.42)

Useful if and only if iturb >= 10. (mixing length, $k-\varepsilon$, $R_{ij}-\varepsilon$, LES, v2f or $k-\omega$).

◆ cs_turb_xlesfd

double cs_turb_xlesfd
extern

Ratio between explicit and explicit filter width for a dynamic model. Constant used to define, for each cell $\Omega_i$, the width of the explicit filter used in the framework of the LES dynamic model: $\widetilde{\overline{\Delta}}=xlesfd\overline{\Delta}$.

Useful if and only if iturb = 41.

◆ cs_turb_xlesfl

double cs_turb_xlesfl
extern

Constant used in the definition of LES filtering diameter: $ \delta = \text{xlesfl} . (\text{ales} . volume)^{\text{bles}}$ cs_turb_xlesfl is a constant used to define, for each cell $\Omega_i$, the width of the (implicit) filter: $\overline{\Delta}=xlesfl(ales*|\Omega_i|)^{bles}$
Useful if and only if iturb = 40 or 41