Visualizing the Results

Visualize the flow velocity field and the mass flow throughout the manifold.

The engine cycle in GT-SUITE starts when the Cylinder 1 Intake Valve closes, which the model defines as 110 degrees before Cylinder 1 Top Dead Center Firing (TDCF). Therefore, the results in Simcenter STAR-CCM+ display the engine cycle from 110 degrees before Cylinder 1 TDCF, over a further 2160 degrees of crank rotation (three cycles).

A velocity vector scene similar to the one shown below is displayed, which shows velocity vectors during the last time-step. It shows that GT-SUITE has opened the valve on Cylinder 3, with high velocity air flow.

To view the mass flow plot over the last full engine cycle:

  1. Right-click the Plots > Reports Plot and select Open.
  2. Click Scene/Plot.
  3. Select the Axes > Bottom Axis node and set Minimum to 0.08 and Maximum to 0.12.

  4. Similarly, view the fresh air mass fraction monitor over the last full engine cycle.