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March 14, 2017, 00:13 |
Compressible Pipe Flow
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#1 |
New Member
U.S
Join Date: Jan 2016
Posts: 16
Rep Power: 10 |
Hello dear friends,
I am a newbie in StarCCM+ and trying to simulate an air pipe flow. My input is mass flow rate, like a normal pipe flow. In my simulation I am trying to see the heat transfer. The pressure of the air is around 10 bars. Therefore, I am not sure which models to use. I tried: -steady -3d -gas -segregated flow -ideal gas -segregated fluid temp. -turbulent -k-epsilon however my solution did not converge. Could you guys suggest me any physics models if you have any experience ? Kind regards, |
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March 14, 2017, 01:32 |
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#2 | |
Senior Member
Lane Carasik
Join Date: Aug 2014
Posts: 692
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Quote:
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March 14, 2017, 05:39 |
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#3 |
New Member
U.S
Join Date: Jan 2016
Posts: 16
Rep Power: 10 |
Hello,
Mesh is like the following. I used: Generalized cylinder, exturuder, prism layer(2 layerS) polyhedrad mesher and surface remesher. I estimated a y+, but could not check it. Convergence problem i defined as : divergence at the second step(floating point problem it says) Thanks for the reply btw |
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March 14, 2017, 09:37 |
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#4 |
Senior Member
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24 |
Make sure you are setting your reference pressure to 10 bar and the outlet to 0.
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