*DurationOption (setting)

Available for step-based analyses. Defines the duration of the analysis.

For information on step-based vs iteration-based analyses, see Steady Analysis Type in the System Coupling User's Guide.

Possible values:

  • NumberOfSteps

    Available when AnalysisType is set to Steady or Transient.

    System Coupling performs coupling steps until the specified number of steps is reached.

  • EndTime

    Available when AnalysisType is set to Transient. System Coupling executes coupling steps until the specified end time is reached.

    In this type of transient analysis, each coupling step is a time step, with the time interval specified by the step size. The final coupling step size is reduced automatically, if needed, so that the specified end time is respected.

    Some participants, such as Mechanical, require that the end time specified in their setup to be respected. When a coupled analysis involves one or more participants that require their setup's end time be respected, then the maximum allowable end time for the coupled analysis is the minimum of the end times reported by such participants. In this case, a validation error is reported if the coupled analysis' specified end time is greater than the minimum identified.

    Other participants, such as CFX, can run past the end time specified. These participant systems have no effect on the allowable end time of the coupled analysis.


Tip:  Shown in the GUI as the Solution Control | Duration Option setting.