:orphan:

.. _auto_dt_advanced_controls:

auto_dt_advanced_controls
=========================

.. autoclass:: ansys.fluent.core.generated.solver.settings_251.auto_dt_advanced_controls
    :show-inheritance:

.. rubric:: Attributes

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Attribute                                                                                                                   Summary

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:ref:`enable <enable_20>`                                             Enable advanced automatic time stepping for better stability.

:ref:`dt_init_limit <dt_init_limit>`                            Set maximum value for pseudo time step size during first iteration.

:ref:`dt_max <dt_max_1>`                                                                         Set maximum pseudo time step size.

:ref:`dt_factor_min <dt_factor_min>`                                      Set minimum limit for reduction in pseudo time step size.

:ref:`dt_factor_max <dt_factor_max>`                                       Set maximum limit for increase in pseudo time step size.

:ref:`max_velocity_ratio <max_velocity_ratio>`       Set velocity ratio to freeze the time step size for better solution stability.

==============================================   ==================================================================================

.. rubric:: Included in:

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Parent                                                                                       Summary

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:ref:`pseudo_transient <pseudo_transient>`       Pseudo-Time stability controls for multiphase flow.

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