ComposeTimeStepperAction
Add the composition time stepper if multiple time steppers have been created.
This action specifies the CompositionDT object when multiple time steppers are provided in the [TimeSteppers]
block. If there are more than one time steppers provided, it will add a CompositionDT in the time stepper system and make the CompositionDT as the final time stepper to use in the transient simulations. An optional parameter "lower_bound" is provided to set a lower bound for the computed time step size. It can be specified with any time stepper(s) in the [TimeSteppers]
block.
An example of using a growing lower bound to limit the time step size as:
(contrib/moose/test/tests/time_steppers/time_stepper_system/lower_bound.i)More information about Time Stepper System and CompositionDT time stepper may be found on the Time Stepper System syntax documentation.