pseudo_transient

class ansys.fluent.core.solver.tui_241.main_menu.solve.set.multiphase_numerics.advanced_stability_controls.pseudo_transient(service, version, mode, path)

Bases: TUIMenu

Enters the stability control menu for steady-state multiphase cases with the pseudo time method option enabled.

Classes:

auto_dt_advanced_controls(service, version, ...)	Set automatic time-stepping controls for better solution stability.
false_time_step_linearization(service, ...)	When enabled, provides additional stability for buoyancy-driven flows with the pseudo time method option enabled by increasing the diagonal dominance using the false time step size.
smoothed_density_stabilization_method(...)	Smooths the cell density near the interface, therefore avoiding unphysical acceleration of the lighter phase in the vicinity of interface.

class false_time_step_linearization(service, version, mode, path)

Bases: TUIMethod

When enabled, provides additional stability for buoyancy-driven flows with the pseudo time method option enabled by increasing the diagonal dominance using the false time step size.

class smoothed_density_stabilization_method(service, version, mode, path)

Bases: TUIMethod

Smooths the cell density near the interface, therefore avoiding unphysical acceleration of the lighter phase in the vicinity of interface. The default number of density smoothings is 2. In case of very large unphysical velocities across the interface, you can increase this number when prompted with Number of density smoothings.