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P ratio is correct, but Pressures at in and out lets are wrong! |
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July 7, 2014, 05:18 |
P ratio is correct, but Pressures at in and out lets are wrong!
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Join Date: Nov 2013
Posts: 57
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Dear guys,
I am simulating a compressor, 3D, Unsteady, Density based with pressure ratio 2.5 I used mass flow inlet and pressure out let after about 20000 iteration (5 cycle of rotor) and getting convergence, pressure ratio is correct, 2.478 but total and static pressure at inlet and out let are wrong. I used pressure at out let 2.4 Mpa and initial gauge pressure at inlet abound 0.9 Mpa, but after convergence these about are changed to about 1.9 and 4.45 respectively. Operation condition pressure was set to zero Any guide ?!?! |
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