Running the co-simulation

This section explains the settings to run the simulation. The steps to run the simulation are:

Select the Simulation Panel.
Ensure Transient radio button is selected.
Ensure Simulation Time (Duration), Number of Time Steps, Number of Iterations and Result Saving Frequency as 0.12 s , 600, 25 and 120 respectively.
After you save the project, click Start to run the simulation.

Figure 10.130 - Time Definition in Simerics-MP+

The CFD Simulation Time set in Simerics-MP+ of 0.12 s, as shown in Figure 10.130, is equal to the time taken for 5 cycles of revolution of the pump (at 2500 RPM).

When the simulation is started in Simerics-MP+, the GT-SUITE co-simulation starts running. The total simulation time specified for the co-simulation in GT-SUITE corresponds to 5 cycles of revolution of the pump (at 2500 RPM), which is equal to 0.12 s. The time before coupling with CFD is specified in GT-SUITE Time Definition, as the time taken for 1 cycle of revolution of the pump. Hence, the CFD simulation runs for a physical time of 0.096 s, equivalent to 4 cycles of revolution of the pump. When GT-SUITE simulation is finished, Simerics-MP+ simulation is also terminated, and a prompt to save the result file appears.

To view the residuals, select View> Toolbar> Residual from the Menu bar. The residuals for the simulation are shown below:

Figure 10.131 - 3D Pump simulation Residuals