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twoPhaseEulerFoam for flow inside a cyclonic separator

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Old   July 10, 2011, 20:44
Default twoPhaseEulerFoam for flow inside a cyclonic separator
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Hi All,

I'm wondering if anyone has tried to simulate a flow inside a cyclonic separation using twoPhaseEulerFoam, example air + sand. I'm trying to simulate this problem base on ~/tutorial/multiphase/twoPhaseEulerFoam/bed solver, but the simulation become unstable after a few seconds.

When I tried with one phase only (air) using pisoFoam, the simulation is OK without any problems, and I can see the swirling flow inside the cyclone. I suspect that, with the particle, the centrifugal force make the particle to move very fast and then somehow ... make the simulation unstable (I might be wrong on this). Does anyone have any different idea why I cannot simulate this cyclone geometry?

I'm happy to send the mesh or other files from the three principle folders (~/0 ~/system ~/constant ) if anyone interested.

Cheers
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Old   May 15, 2012, 07:33
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HI Mali,

I am iterested in this topic. I would like to do the separator analysis. Do you already have a working case ? Or could you send me the mesh and settings ?

Thanks

Peter
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Old   July 24, 2012, 09:12
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Quote:
Originally Posted by mali View Post
Hi All,

I'm wondering if anyone has tried to simulate a flow inside a cyclonic separation using twoPhaseEulerFoam, example air + sand. I'm trying to simulate this problem base on ~/tutorial/multiphase/twoPhaseEulerFoam/bed solver, but the simulation become unstable after a few seconds.

When I tried with one phase only (air) using pisoFoam, the simulation is OK without any problems, and I can see the swirling flow inside the cyclone. I suspect that, with the particle, the centrifugal force make the particle to move very fast and then somehow ... make the simulation unstable (I might be wrong on this). Does anyone have any different idea why I cannot simulate this cyclone geometry?

I'm happy to send the mesh or other files from the three principle folders (~/0 ~/system ~/constant ) if anyone interested.

Cheers
Please send it to me @dutta_ruma@yahoo.com
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Old   August 1, 2012, 16:05
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Kuan-Lin Lee
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Please send me the mesh file too.

I heard that, cyclone mesh is quite unstable...I might cause the problem. Anyway, I am working on this twophaseeulerFoam now, and i'm willing to discuss with you guys.

jimmymiller38200@gmail.com
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Old   May 9, 2013, 00:24
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Quote:
Originally Posted by mali View Post
Hi All,

I'm wondering if anyone has tried to simulate a flow inside a cyclonic separation using twoPhaseEulerFoam, example air + sand. I'm trying to simulate this problem base on ~/tutorial/multiphase/twoPhaseEulerFoam/bed solver, but the simulation become unstable after a few seconds.

When I tried with one phase only (air) using pisoFoam, the simulation is OK without any problems, and I can see the swirling flow inside the cyclone. I suspect that, with the particle, the centrifugal force make the particle to move very fast and then somehow ... make the simulation unstable (I might be wrong on this). Does anyone have any different idea why I cannot simulate this cyclone geometry?

I'm happy to send the mesh or other files from the three principle folders (~/0 ~/system ~/constant ) if anyone interested.

Cheers

Hi mali,

Please send it to me if possible.

shingo0323northwind@gmail.com

Thanks.

Shingo,
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Old   January 23, 2014, 03:58
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Hi,

Please send to me at hwzsale@gmail.com

Thanks!
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Old   September 25, 2014, 04:26
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Have you found out what was wrong with your settings? Please send me your files, I can try to figure out something. lukasz0004@gmail.com

Thanks you in advance.
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