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mappedPatch for two fluid regions

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Old   July 22, 2014, 09:18
Default mappedPatch for two fluid regions
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Hi,

I want to simulate two fluid regions which should be coupled with a mappedPatch. The reason is that I want two simulate the different regions with different turbulentModels (RANS and LES).
If I set up my boundary files of the two regions with:

Code:
    oldInternalFaces
    {
        type            mappedPatch;
        sampleMode      nearestPatchFace;
        sampleRegion    fluidRANS; // respectively fluidLES for the other region
        samplePatch     oldInternalFaces;
        nFaces          176;
        startFace       61548;
    }
and for my boundary condition (i.e. U):

Code:
    oldInternalFaces
    {
        type            mapped;
        setAverage      false;
        average         (0 0 0);
        value           uniform (0 0 0);
    }
I get the error:
Code:
--> FOAM FATAL ERROR: 

    request for volScalarField mut from objectRegistry fluidLES failed
    available objects of type volScalarField are
0()
Any hints? Thank you.
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