Change the speed of a Dynamics run
- Last UpdatedJan 31, 2025
- 1 minute read
When your switch your simulation to Dynamics mode, the simulation is in a paused state. You can use the following options to run your simulation in Dynamics mode:
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Run the simulation continuously
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Advance the solution by a single time step
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Solve the simulation to steady state
Note: Typically, you advance the solution by a single time step as an analysis aid to debug simulations.
When you run the simulation continuously, you can run the simulation in real time or as fast as possible. When you run the simulation in real time, the simulation proceeds as wall-clock time and reflects the true response time of the plant or process. When you run the simulation as fast as possible, the simulation proceeds quickly and allows you to gather more analysis data in a shorter amount of time.
Activity
Directions
Specifying a time step
On the Dynamics tab, in the Speed group, in the Step list, enter the value and select the unit of measure that you want to use for the time step.
Specifying the run-time option
On the Dynamics tab, in the Speed group, select the slider shown in the following figure.

When Fast appears, the Dynamics simulation runs as fast as possible. When Real appears, the Dynamics simulation runs in real time.