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IDProjectCategoryView StatusDate SubmittedLast Update
0000078OpenFOAM[All Projects] Bugpublic2010-11-11 14:132010-11-11 15:20
Assigned Tohenry 
StatusclosedResolutionno change required 
PlatformLinuxOSOpenSuseOS Version11.1
Product Version 
Target VersionFixed in Version 
Summary0000078: Flowfield disturbance due to MRF zone
DescriptionFlowfield disturbances develop when using an empty MRF zone in a test set-up with uniform freestream conditions.
The MRF zone is a cylinder with the axis pointing in Z-direction. The freestream velocity is in X-direction.
My expectation was that, as the MRF zone is empty, the flowfield would be unaffected by it. Clearly this is not the case, see screenshots of resulting flowfield in attached emptyCylinder.tar.gz
OF 1.7.x is used, updated today.
The mesh consists of tetrahedra only, created using ANSA.

Steps To ReproduceCreate mesh with similar geometry as shown in geometry.png (included in emptyCylinder.tar.gz) and use attached set-up files. Run using MRFSimpleFoam.
TagsNo tags attached.
Attached Filesgz file icon emptyCylinder.tar.gz [^] (586,099 bytes) 2010-11-11 14:13

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-  Notes
henry (manager)
2010-11-11 15:20

An MRF region will affect a cross-flow even if it is empty.

- Issue History
Date Modified Username Field Change
2010-11-11 14:13 roland New Issue
2010-11-11 14:13 roland File Added: emptyCylinder.tar.gz
2010-11-11 15:18 henry Assigned To => henry
2010-11-11 15:18 henry Status new => assigned
2010-11-11 15:20 henry Note Added: 0000122
2010-11-11 15:20 henry Status assigned => closed
2010-11-11 15:20 henry Resolution open => no change required