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High Turbulent channel (duct) flow - a lot of problems |
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August 5, 2022, 14:04 |
High Turbulent channel (duct) flow - a lot of problems
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#1 |
New Member
Join Date: Sep 2021
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Hi guys! 1st post for me here at CFD-Online.
Great community , great people, thanks! I'm currently trying to stabilize a simulation that doesn't want to "stay calm" -------- > EXPLOSION I've a channel duct flow:
Thanks Pao |
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August 7, 2022, 05:39 |
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#2 |
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Santiago Lopez Castano
Join Date: Nov 2012
Posts: 354
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August 8, 2022, 04:08 |
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#3 |
New Member
Join Date: Jul 2022
Posts: 6
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Hi,
Without additional information it's hard to say why your simulation crashes, so I can suggest some general things to check that might be the cause: - Does it crash at the first few iterations or at a certain time? - You could examine the log file, or monitor the residuals (https://doc.cfd.direct/openfoam/user...phs-monitoring) to find out which variable causes the problem (p,T,U etc.). - Is your mesh fine? Are there any bad cells (use checkMesh) - How did you calculate the BC for the turbulence model? You can estimate appropriate values e.g. at https://cfd-training.com/turbulent-b...ns-calculator/ Hope that helps, good luck! |
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channel flow, high turbulence, rhosimplefoam |
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