advection_scheme#

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

Defines the scheme used by the solver to discretize the advection term in transport equations.

Attributes

Attribute	Summary
option	The ‘Advection Scheme’ option.
blend_factor	Specifies the blend between pure UDS (0.0) and second order (1.0) discretization.
bounded_cds	Setting to true activates the bounded CD scheme.
gradient_relaxation	‘Gradient Relaxation’ parameter.
gradient_type	‘Gradient Type’ parameter.
blend_factor_relaxation	Under-relaxation factor for the NAC term multiplier.
blend_factor_relaxation_option	Relaxation option (1=always, 2=increasing only).
minimum_blend_factor	‘Minimum Blend Factor’ parameter.
maximum_blend_factor	‘Maximum Blend Factor’ parameter.
freestream_damping	‘Freestream Damping’ parameter.
mach_blending	Determines whether density advection blends with CDS at low Mach numbers.
freestream_damping_option	‘Freestream Damping Option’ parameter.
cds_bound	Tunes CDS boundedness: 0 - pure CD, 0.25-0.75 - optimal for LES, 1 - standard BCD, >1 - increased dissipation.
cds_blending	Controls blending between the basic advection scheme and CDS. Currently used for DES and SAS turbulence models only (hybrid LES-RANS models).

Included in:

Parent	Summary
solver_control	Holds all objects that control discretization and execution of the solution process.