nozzle in fluent -- CFD Online Discussion Forums

February 5, 2015, 08:30	nozzle in fluent	#1
frafole New Member FC Join Date: Dec 2014 Posts: 12 Rep Power: 11	Hi, I'm simulating a convegent divergent nozzle in fluent with air. I've noticed that the AreaAvarage pressure in inlet changes when I change the dimensions of the nozzle, even if I set as BC ambient pressure inlet; why does that happen? Otherwise I'm searching for the minor pressure drops from inlet to outlet, and I don't undestand why pressure drops seems that have more than one minimum value if I modify the length of the nozzle without changing the angles, but in theory pressure drops should be linear. Does anyone know what I'm probably missing? thank you very much.

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