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Multiphase + vapor extraction

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Old   May 31, 2012, 00:47
Default Multiphase + vapor extraction
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Hi all,
I'm simulating such case: a flow is between parallel plates. A constant heat flux added on the bottom plate, while a porous media is placed above the top plate. The aim is to extract vapor generated from water (no boiling, pure evaporation) through the porous media.
Does anyone know how should I select the solver for this problem? I tried multiphase segregate flow model. But it didn't work.
Thank you very much!
Bryan
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Old   May 31, 2012, 04:48
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Can you explain more about your model selection ( which multiphase, lagrangian or eulerian?). Moreover, what was the problem that it did not work? How did you select the porous region?
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Old   May 31, 2012, 15:49
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Sure. I use Eulerian multiphase model. You can see the detail in the picture. The problem is after only 27 steps, the troubleshooting error happens. I tried to change initial conditions more physically reasonable. But the error still happened.
The basic geometry is shown too. Upper part is porous region and lower part is fluid region.
I really appreciate if somebody can give some suggestions!

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Old   May 31, 2012, 15:50
Default Pictures for model and geometry
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Please see the attachment.
Attached Images
File Type: png solver.png (11.9 KB, 23 views)
File Type: png Geometry.png (12.2 KB, 19 views)

Last edited by bryan he; May 31, 2012 at 15:57. Reason: Picture didn't show up
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