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August 5, 2023, 11:25 |
Boiling in a pipe
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#1 |
New Member
Hassan Tariq
Join Date: Sep 2021
Posts: 2
Rep Power: 0 |
Hi everyone!
I am stuck with the boiling in a pipe problem in Fluent. Fluid is water at atmospheric conditions and heat flux is applied to wall which is well blow the critical heat flux... Niether rpi model nor non equilibrium model is converging.. Pipe is vertical Fluent boiling model with default forces Velocity inlet Pressure outlet, 0 Pa gauge 1e-5 surface roughness Need some suggestions Thanks |
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September 9, 2023, 06:55 |
Same problem with me
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#2 |
New Member
Ankur
Join Date: Jul 2018
Posts: 5
Rep Power: 8 |
Same problem with me but with a horizontal pipe
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September 9, 2023, 06:56 |
Getting reverse flow at the outlet
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#3 |
New Member
Ankur
Join Date: Jul 2018
Posts: 5
Rep Power: 8 |
Getting reverse flow at the outlet and pressure divergence with complete divergence of the solution
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September 10, 2023, 12:42 |
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#4 |
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Hassan Tariq
Join Date: Sep 2021
Posts: 2
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are you doing pseudo transient?
could you share the tutorial that you are following? |
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September 11, 2023, 03:29 |
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#5 |
New Member
Ankur
Join Date: Jul 2018
Posts: 5
Rep Power: 8 |
No, I am using purely transient case. And i do not have any tuttorial to following, i was following the research paper "Pal, R.K. and Kumar, R., 2021. Thermo-hydrodynamic modeling of flow boiling through the horizontal tube using Eulerian two-fluid modeling approach. International Journal of Heat and Mass Transfer, 168, p.120794." but unable to reproduce the results. If anyone can help, I will be highly grateful.
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March 20, 2024, 09:51 |
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#6 |
New Member
Oscar Zagal
Join Date: Jan 2024
Posts: 16
Rep Power: 2 |
Hello
Maybe you can try with OpenFOAM v2312, I had the same problem working with Fluent, but in OF there are a tutorial called solidQuenching2D in the solver for heat transfer chtMultiRegionTwoPhaseEulerFoam that allows me to reproduce the paper of Kumar, the only problem is that you will need a very powerful computer because the solver only work transient simulation Edit: and pseudo transient if you know how to use the PIMPLE algorithm Last edited by oscar_zagal; March 20, 2024 at 10:51. |
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August 24, 2024, 07:22 |
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#7 |
New Member
Join Date: Oct 2023
Posts: 3
Rep Power: 3 |
Did someone figure out a fix to this?
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Tags |
boiling, fluent rpi model, pipe |
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