The images show a computational fluid dynamics simulation (cfd) of a centrifugal compressor. Pressure and velocity color mappings related to the machine main section planes are provided under a given operating condition.
Example of cfd simulation on a throttle simplified model.
These results allow you to measure pressure drop, that is the pressure drop on the disk. Most of the collected data concern fluid pressure and velocity.
Streamlines display allows you to understand the trajectories followed by flows on the purpose of optimizing the throttle design.