Keywords introduced by TrioCFD that extend the Turbulence_paroi_base family. See Keywords derived from turbulence_paroi_base for the base-class documentation and the canonical keyword list.

loi_ciofalo_hydr

A Loi_ciofalo_hydr law for wall turbulence for NAVIER STOKES equations.

loi_expert_hydr

This keyword is similar to the previous keyword Loi_standard_hydr but has several additional options into brackets.

Parameters:

[u_star_impose] (type: float) The value of the friction velocity (u*) is not calculated but given by the user.
[methode_calcul_face_keps_impose] (type: string into ['toutes_les_faces_accrochees', 'que_les_faces_des_elts_dirichlet']) The available options select the algorithm to apply K and Eps boundaries condition (the algorithms differ according to the faces). toutes_les_faces_accrochees : Default option in 2D (the algorithm is the same than the algorithm used in Loi_standard_hydr) que_les_faces_des_elts_dirichlet : Default option in 3D (another algorithm where less faces are concerned when applying K-Eps boundary condition).
[kappa] (type: float) The value can be changed from the default one (0.415)
[erugu] (type: float) The value of E can be changed from the default one for a smooth wall (9.11). It is also possible to change the value for one boundary wall only with paroi_rugueuse keyword/
[a_plus] (type: float) The value can can be changed from the default one (26.0)

loi_expert_hydr_vef

Expert wall function for the VEF discretisation.

Parameters:

[u_star_impose] (type: float) Imposed U* value
[methode_calcul_face_keps_impose] (type: int) Method to select which faces will be used to compute k and epsilon
[coeff_omega_wall] (type: int) coeff for omega boundary condition

loi_puissance_hydr

A Loi_puissance_hydr law for wall turbulence for NAVIER STOKES equations.

loi_standard_hydr

Keyword for the logarithmic wall law for a hydraulic problem. Loi_standard_hydr refers to first cell rank eddy-viscosity defined from continuous analytical functions, whereas Loi_standard_hydr_3couches from functions separataly defined for each sub-layer

loi_standard_hydr_old

not_set

loi_standard_hydr_vef

Standard wall function for the VEF discretisation.

loi_ww_hydr

laws have been qualified on channel calculation

paroi_tble

Keyword for the Thin Boundary Layer Equation wall-model (a more complete description of the model can be found into this PDF file). The wall shear stress is evaluated thanks to boundary layer equations applied in a one-dimensional fine grid in the near-wall region.

Parameters:

[n] (type: int) Number of nodes in the TBLE grid (mandatory option).
[facteur] (type: float) Stretching ratio for the TBLE grid (to refine, the TBLE facteur must be greater than 1).
[modele_visco] (type: string) File name containing the description of the eddy viscosity model.
[stats] (type: twofloat) Statistics of the TBLE velocity and turbulent viscosity profiles. 2 values are required : the starting time and ending time of the statistics computation.
[sonde_tble] (type: list of Sonde_tble) not_set
[restart] (type: flag) not_set
[stationnaire] (type: floatfloat) not_set
[lambda_ | lambda_u | lambda] (type: string) not_set
[mu] (type: string) not_set
[sans_source_boussinesq] (type: flag) not_set
[alpha] (type: float) not_set
[kappa] (type: float) not_set

paroi_tble_vdf

Wall function using the thin boundary layer formulation.

Parameters:

[alpha_cv] (type: flag) Activate if TBLE and convective terms (not sure) (default = false)

utau_imp

Keyword to impose the friction velocity on the wall with a turbulence model for thermohydraulic problems. There are two possibilities to use this keyword :

1 - we can impose directly the value of the friction velocity u_star.

2 - we can also give the friction coefficient and hydraulic diameter. So, TRUST determines the friction velocity by : u_star = U*sqrt(lambda_c/8).

Parameters:

[u_tau] (type: field_base) Field type.
[lambda_c] (type: string) The friction coefficient. It can be function of the spatial coordinates x,y,z, the Reynolds number Re, and the hydraulic diameter.
[diam_hydr] (type: field_base) The hydraulic diameter.