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April 4, 2012, 18:54 |
cyclicAMI problem in MRF zone
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#1 |
Member
Jean-Michel FONTAINE
Join Date: Aug 2009
Location: Orleans - France
Posts: 55
Rep Power: 17 |
Dear all
I'm trying to set a rotating blade case, using MRFsimpleFoam and periodic cyclicAMI faces in OF 2.1.x Everything works, except a weird behaviour of cycliAMI faces inside MRFzone : they seem to be partially connected, and generate rotating strips, localized near the surface ! Please see the different images. At the contrary the cyclicAMI faces located outside the MRF zone operate properly I've been sticked with this problem for a few days, and I would be grateful to anybody who would help me The complete case is downloadable here : http://www.jmichel.cmoi.cc/?q=node/79 Just run ./allRun Thanks in advance Jean-Michel |
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April 5, 2012, 14:39 |
cyclicAMI problem in MRFzone
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#2 |
Member
Jean-Michel FONTAINE
Join Date: Aug 2009
Location: Orleans - France
Posts: 55
Rep Power: 17 |
Hi everybody
This is the direct shortcut to the case data : http://www.jmichel.cmoi.cc/sites/jmi...BladeForum.zip Best wishes Jean-Michel |
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April 6, 2012, 05:52 |
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#3 |
Senior Member
Niels Nielsen
Join Date: Mar 2009
Location: NJ - Denmark
Posts: 556
Rep Power: 27 |
Hi have you seen this?
http://www.openfoam.org/mantisbt/view.php?id=412 The reply from Andy about the nonRotating patches in the MRF dict.
__________________
Linnemann PS. I do not do personal support, so please post in the forums. |
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April 6, 2012, 16:30 |
[Solved] cyclicAMI problem in MRF zone
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#4 |
Member
Jean-Michel FONTAINE
Join Date: Aug 2009
Location: Orleans - France
Posts: 55
Rep Power: 17 |
Dear Linnemann
Many thanks for this answer, this line fixed the problem: nonRotatingPatches (MRFcyclicTrail MRFcyclicLead); You helped me a lot Best wishes Jean-Michel |
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June 23, 2014, 13:46 |
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#5 |
New Member
Ash Sechler
Join Date: Feb 2014
Posts: 5
Rep Power: 12 |
Adding the cyclicAMI patches to nonRotatingPatches() does not work for me. I am using OF2.2.2. My results are similar to the images posted here. After many different attempts i dont believe it is possible to use MRF in conjunction with cyclicAMI as periodic boundaries. I could be wrong, but i would say this is only possible with normal cyclic boundaries in 2.2.2
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June 23, 2014, 18:36 |
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#6 |
New Member
Ash Sechler
Join Date: Feb 2014
Posts: 5
Rep Power: 12 |
This also seems impossible in OF2.3.0. Can anyone support my claim or possibly suggest how it can be done? Thanks
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June 28, 2014, 15:56 |
cyclicAMI problem in MRF zone
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#7 |
Member
Jean-Michel FONTAINE
Join Date: Aug 2009
Location: Orleans - France
Posts: 55
Rep Power: 17 |
Dear Ash
You might check that you have this in system/decomposeParDict : preservePatches(yourMRFcyclic0 yourMRFcyclic1); Hope that helps Jean-Michel |
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June 29, 2014, 09:26 |
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#8 |
Member
Join Date: Jun 2012
Posts: 76
Rep Power: 14 |
Could you provide a example test case, where it is not working?
I'm using cyclicAMI as cyclic boundaries in conjunction with MRF and everything worked so far using OpenFOAM 2.2.x and 2.3.x. Regards, Martin |
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August 14, 2014, 14:48 |
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#9 |
New Member
Ash Sechler
Join Date: Feb 2014
Posts: 5
Rep Power: 12 |
Martin and Jean-Michel,
thanks for you attention. I have started a another thread about this specific problem, with case and images attached: http://www.cfd-online.com/Forums/ope...-mrf-zone.html please let me know if you might have any insight. thanks! Ash |
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Tags |
cyclic boundary, mrfsimplefoam |
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