F-35 Nozzle (Flow simulation)

The three-bearing swivel nozzle design uses three segments of the engine exhaust duct cut on an angle and joined by two airtight circular bearings. External motors drive geared teeth in these segments to rotate them to create the deflected thrust. The forward and aft segments always stay aligned with one another in the rotational axis. The center segment rotates through 180 degrees relative to them. The third bearing is on the back of the engine aft of the turbine stage and provides the ability to swivel the nozzle thrust axis in yaw at any pitch angle.

for more visit: https://www.codeonemagazine.com/f35_article.html?item_id=137

Design:
-the angle of parts is 22.5 degree
-Gears were taken from the SolidWorks library, both gears are with 2.5module

how to do flow simulation:
-Open part4 -- suppress boundary1 == unsuppress revolve1==unsupress lid
-open part1 -- unsuppress simu(lid)
-Go to Evaluate -- FloXpress analysis wizard
PS: the outlet pressure must be higher than the inlet