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Old   October 9, 2025, 10:41
Post OpenFoam - cyclicAMI
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Dear OpenFoam Users,


please forgive if I've done something wrong - this is my first time on Forum so I did not know if I should I continue an old thread from 2016 or start a new one - I decided for the 2nd option.


I'm trying to set up a simulation domain consisting of several sub-domains (geometry and mesh done in Salome and imported to OpenFoam).
Two sub-domains I have to connect and decided to do that by cyclicAMI - though those sub-domains will be stationary - just have to connect / interpolate the meshes as the flow will pass those 2 sub-domains.
After typing moveDynamicMesh - checkAMI I get the following information as shown below.


I have tried to increase the matchTolerance value in createPatchDict (maybe it was set to small and the 2 meshes could not see each other) - but without any results.


I've checked the normals at those 2 domains - in both cases show outside of the 2 sub-domains so it seems to be consistent.
The mesh sizes at those 2 sub-domains also do not differ much.


I've no idea why the target has such enormous dimensions and I do not know what to do to solve that problem so any suggestions / help are most welcome.
Thank you in advance.



PIMPLE: iteration 1
inverseDistance : detected 6 mesh regions
zone:0 nCells:17535 voxels(57 57 57) bb(-57.4952657 -60.0001657 -10.5464657) (57.4991657 57.4123657 10.5708657)
zone:1 nCells:60750 voxels(57 57 57) bb(-47.00013458 -47.00013458 -10.50013458) (47.00013458 47.00013458 10.50013458)
zone:2 nCells:45884 voxels(57 57 57) bb(-49.00413874 -49.00473874 -10.50643874) (49.00413874 49.00563874 -4.493391264)
zone:3 nCells:7455 voxels(57 57 57) bb(-57.50005815 -110.0000582 -10.50005815) (-36.49994185 -59.99994185 10.49985815)
zone:4 nCells:29143 voxels(57 57 57) bb(-58.99012816 -87.45702816 -12.01112816) (-35.00977184 -81.63027184 1.551688159)
zone:5 nCells:30613 voxels(57 57 57) bb-58.99012816 -87.45672816 -1.551528159) (-35.00987184 -81.63027184 12.01102816)
AMI: Creating AMI for source:NewTorusKonektory_TorusWlotAMI and target:NewRdzenWlotAMI
AMI: Patch source faces: 164
AMI: Patch target faces: 0
--> FOAM Warning :
From void Foam::advancingFrontAMI::checkPatches() const
in file AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C at line 107
Source and target patch bounding boxes are not similar
source box span : (20.9904 0 20.8876)
target box span : (-2e+150 -2e+150 -2e+150)
source box : (-57.4951 -60 -10.4447) (-36.5047 -60 10.4429)
target box : (1e+150 1e+150 1e+150) (-1e+150 -1e+150 -1e+150)
inflated target box : (8.267949192e+149 8.267949192e+149 8.267949192e+149) (-8.267949192e+149 -8.267949192e+149 -8.267949192e+149)
--> FOAM Warning :
From bool Foam::advancingFrontAMI::initialiseWalk(Foam::labe l&, Foam::label&)
in file AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C at line 219
164 source faces but no target faces
AMI: Patch source sum(weights) min:0 max:0 average:0
AMI: Creating AMI for source:NewTorusKonektory_TorusWlotAMI and target:NewRdzenWlotAMI
AMI: Patch source sum(weights) min:0.3565727449 max:2.021747123 average:0.5260444559
AMI: Patch target sum(weights) min:0.2954551436 max:0.6636438437 average:0.4610120731


--> FOAM FATAL ERROR: (openfoam-2406)
Supplied field size is not equal to target patch size
source patch = 164
target patch = 155
supplied field = 0

From void Foam::AMIInterpolation::interpolateToSource(const Foam::UList<T>&, const CombineOp&, Foam::List<T>&, const Foam::UList<T>&) const [with Type = Foam::meshToMeshData; CombineOp = Foam::combine<Foam::meshToMeshData, Foam::meshToMeshData::trackData>]
in file /home/maciej/SoftwareInstalled/OpenFOAM/OpenFOAM-v2406/OpenFOAM-v2406/src/mes
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