turbulence_model

class ansys.cfx.core.generated.pre_processing.settings_261.turbulence_model.turbulence_model(name: str | None = None, parent=None)

Bases: Group

Specifies the turbulence model to be used for each fluid in a fluid domain.

Attributes

Attribute	Summary
homogeneous_model	Specifies whether the model is homogeneous or not.
option	The ‘Turbulence Model’ option.
model_version	SST-SAS model version, features of version 2007: squared length scale ratio, high wave number damping, different model coefficient values.
jet_coefficient	GEKO free coefficient Cjet.
near_wall_coefficient	GEKO free coefficient Cnw.
separation_coefficient	GEKO free coefficient Csep.
eddy_length_scale	‘Eddy Length Scale’ parameter.
velocity_scale	‘Velocity Scale’ parameter.
eddy_viscosity	Specify the eddy viscosity used with the selected turbulence model. Omission of this parameter implies the default formula.
smagorinsky_model_constant	‘Smagorinsky Model Constant’ parameter.
bc_tki_factor	Factor for turbulence intensity for “Autocompute Length” turbulence BC’s.
betastar_coefficient	BetaStar k-Omega or SMC-Omega turbulence model coefficient.
cmu_coefficient	Cmu turbulence model coefficient.
cnu1_coefficient	Cnu1 coefficient of the Spalart-Allmaras turbulence model.
compressible_production	1.0=analytical; 3.0=bounded for shocks (compressible turbulence production factor).
a1_coefficient	A1 model coefficient.
limit_turbulent_timescale	Limit k/eps scale for k and epsilon equations.
dynamic_bulk_viscosity	Dynamic bulk viscosity (lambda+2/3 mu). Excluding this parameter recovers Stokes’ hypothesis (lambda=2/3 mu).
dynmc_minimum	Minimum value of the LES dynamic model coefficient.
dynmc_maximum	Maximum value of the LES dynamic model coefficient.
wale_model_constant	Calibration coefficient of the LES WALE model.
mixing_coefficient	GEKO free coefficient Cmix.
buoyancy_turbulence	Controls turbulence production and dissipation due to buoyancy.
sas_coefficients	Parameters of the SAS source term in the omega equation.
transitional_turbulence	Defines the model for transitional turbulence.
turbulence_wall_damping	Sets the turbulence wall damping model.
k_coefficients	Controls model coefficients for the Turbulence Kinetic Energy transport equation.
earsm_coefficients	Controls model coefficients for the explicit algebraic Reynolds stress model.
eddy_viscosity_coefficients	Controls model coefficients for the Eddy Viscosity transport equation with the Spalart-Allmaras turbulence model.
epsilon_coefficients	Controls model coefficients for the Turbulence Eddy Dissipation transport equation.
rng_epsilon_coefficients	Controls model coefficients for the Turbulence Eddy Dissipation transport equation (RNG model).
omega_coefficients	Controls model coefficients for the Turbulence Eddy Frequency transport equation.
k_omega_regime	Controls Menter turbulence model coefficients for the k-Omega regime.
k_epsilon_regime	Controls Menter turbulence model coefficients for the k-Epsilon regime.
geko_coefficients	Provides auxiliary model coefficients for the GEKO turbulence model.
des_coefficients	Controls blending between LES and RANS for DES turbulence model.
sbes_coefficients	Controls blending between LES and RANS for SBES turbulence model.
lrr_ip_rs_coefficients	Controls model coefficients for the Reynolds Stress transport equations (simple pressure strain formulation).
rs_coefficients	Controls model coefficients for the Reynolds Stress transport equations (general pressure strain formulation).
rs_epsilon_regime	Controls Menter turbulence model coefficients for the Reynolds Stress-Epsilon regime.
rs_omega_regime	Controls Menter turbulence model coefficients for the Reynolds Stress-Omega regime.
production_limiter	‘PRODUCTION LIMITER’ object.
curvature_correction	‘CURVATURE CORRECTION’ object.
corner_correction	‘CORNER CORRECTION’ object.
reattachment_modification	‘REATTACHMENT MODIFICATION’ object.
high_lift_modification	‘HIGH LIFT MODIFICATION’ object.
zonal_les_model	‘ZONAL LES MODEL’ object.

Included in:

Parent	Summary
fluid_models	Defines the model details that operate on individual fluids within the domain.