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IDProjectCategoryView StatusDate SubmittedLast Update
0000409OpenFOAM[All Projects] Bugpublic2012-02-02 11:412013-05-29 09:23
Assigned Toandy 
StatusresolvedResolutionno change required 
PlatformLinuxOSCentOSOS Version5.4
Product Version2.1.x 
Target VersionFixed in Version2.1.x 
Summary0000409: MRF solvers give wrong results when MRF zones is larger than the rotating walls
DescriptionUsing MRFSimpleFoam on a simple cases gives very different results depending on the size of the cellZone used.

If the cellZone just spans the walls that traverse through the cells then results are good.

Making the cellZone slightly bigger results in distorted velocity field.
Steps To ReproduceMake the cellZone in the attached case from radius 0.05m to 0.07m and rerun.
TagsNo tags attached.
Attached Filesgz file icon TestCase_MRF_Error.tar.gz [^] (623,861 bytes) 2012-02-02 11:41
png file icon AMI_MRF.png [^] (121,149 bytes) 2012-02-02 11:42

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-  Notes
marco.ian (reporter)
2012-11-07 14:17

The convergence doesn´t seem to be reached.
2000 iterations (the number you set in your cases) are not enough.
Try with 25000.
andy (reporter)
2013-05-29 09:23

AMI patches should be added to the nonRotatingPatches in the MRFZones dictionary

- Issue History
Date Modified Username Field Change
2012-02-02 11:41 linnemann New Issue
2012-02-02 11:41 linnemann File Added: TestCase_MRF_Error.tar.gz
2012-02-02 11:42 linnemann File Added: AMI_MRF.png
2012-11-07 14:17 marco.ian Note Added: 0001767
2013-05-29 09:23 andy Note Added: 0002250
2013-05-29 09:23 andy Status new => resolved
2013-05-29 09:23 andy Fixed in Version => 2.1.x
2013-05-29 09:23 andy Resolution open => no change required
2013-05-29 09:23 andy Assigned To => andy