Swirl Analysis in an overexpanded CD nozzle -- CFD Online Discussion Forums

February 13, 2018, 09:46

Swirl Analysis in an overexpanded CD nozzle

qusaimn

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Qusai

Join Date: Feb 2018

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I simulated a CD nozzle with swirling flow with converged reaults.However when i extract the velocity preaaure and mach graphs,i see two seperate line for the same plot.I have attached the image.Can someone please help me out why am i observing two plots for the same quantity.Does it have something to do with the swirl phenomenon.I am not having this problem for low swirl numbers.

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