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solid to fluid heattransfer with chtMultiRegionFoam |
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August 24, 2010, 13:07 |
solid to fluid heattransfer with chtMultiRegionFoam
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#1 | |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
Rep Power: 16 |
Hey,
I am trying to simulate the heat transfer from a solid to a fluid. I am using Gambit to generate my geometry, which is a tube with a solid inside. Then I use fluent3DMeshToFoam : Quote:
Should I use something like splitMesh ? Thank you for your help ! |
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August 25, 2010, 04:37 |
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#2 |
Senior Member
Aurelien Thinat
Join Date: Jul 2010
Posts: 165
Rep Power: 16 |
Hello Nakor,
I don't remember right now the different steps you have to follow in order to set up a case for chtMultiRegionFoam, but there is already a big thread on this solver in the "running" part of this forum. I found all I needed in it. Edit : Did you add a "regionProperties" file in the constant folder before using the fluent3DMeshToFoam ? |
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August 25, 2010, 05:35 |
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#3 | |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
Rep Power: 16 |
yes, I put a "region properties" file before using fluent3DMeshToFOam.
Then I try to use "splitMeshRegions -cellZones" and my output is : Quote:
But it did create a new folder "mycase/1/" in which I have 2 folders "v_fluid" and "v_solid". Should I put those two folders in "constant/" ? |
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August 25, 2010, 05:50 |
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#4 |
Senior Member
Aurelien Thinat
Join Date: Jul 2010
Posts: 165
Rep Power: 16 |
I took a look at a case I have already setp up.
I also have the folder 0/ and 1/. It seems I used this command too and I copy-paste the folder 1/ files in the 0/ (fluid and wall on my case). Then, in the constant/fluid/ folder, I have RASProperties, thermophisicalProperties...as in any constant folder for a single fluid region solver. So you can copy paste the the folders v_fluid v_solid in your constant/ folder and add the files needed by hand in each of the folders. |
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August 25, 2010, 06:51 |
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#5 | |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
Rep Power: 16 |
I did as you said, copy paste the the folders v_fluid v_solid in my constant/ folder and add the files needed by hand in each of the folders (cp, K,p_rgh,rho, T, g, thermophysical.., turbulenceproperties).
But it look like I have a problem with a library. Quote:
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August 25, 2010, 06:53 |
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#6 |
Senior Member
Aurelien Thinat
Join Date: Jul 2010
Posts: 165
Rep Power: 16 |
Which files do you have in your constant/v_fluid/ folders ?
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August 25, 2010, 06:56 |
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#7 |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
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I have the folder polymesh, and g, RASproperties,thermophysicalproperties, turbulenceporperties, cellToregions, (and k, nut, nutilda, omega, p, R, U, but I don't think they are really usefull here).
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August 25, 2010, 07:30 |
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#8 |
Senior Member
Aurelien Thinat
Join Date: Jul 2010
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"(and k, nut, nutilda, omega, p, R, U, but I don't think they are really usefull here)."
Yes they are useless. Can you copy paste the thermophysicalProperties file ? |
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August 25, 2010, 08:39 |
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#9 | |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
Rep Power: 16 |
Quote:
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August 25, 2010, 08:49 |
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#10 |
Senior Member
Aurelien Thinat
Join Date: Jul 2010
Posts: 165
Rep Power: 16 |
Well, I don't know where the problem come from.
Do you add the v_fluid/ and v_solid/ in system/ ? My case follows exactly what you have and it's runnable. |
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August 25, 2010, 08:53 |
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#11 |
New Member
Romain
Join Date: Jun 2010
Location: Lyon
Posts: 28
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yes I have those two folders in system.
In each of them I have changeDictonaryDict, decomposeParDict, fvSchemes, and fvSolution. |
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March 21, 2011, 09:28 |
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#12 |
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Samuel ARNAUD
Join Date: Feb 2011
Location: Grenoble, FRANCE
Posts: 39
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Hi nakor,
Did you manage to solve your issue? Hi All Any hint? Best regards
__________________
Sam |
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