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Multiple non coaxial rotors

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Old   March 30, 2018, 23:35
Default Multiple non coaxial rotors
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Hello Everyone,

I am trying to set up a case in OpenFOAM with two non-coaxial rotors, see picture rotors.png. I have tried with pimpleDyMFoam using the following setting in dynamicMeshDict:
dynamicFvMesh   solidBodyMotionFvMesh;

motionSolverLibs ( "" );

    cellZone        innerCylinderSmall1; // for rotor 1

    solidBodyMotionFunction  rotatingMotion;
        origin      (0 0 0);
        axis        (0 1 0);
        omega       40; // rad/s

    cellZone        innerCylinderSmall2; // for rotor 2

    solidBodyMotionFunction  rotatingMotion;
        origin      (0.5 0 0);
        axis        (0 1 0);
        omega       40; // rad/s

However, only the second rotor rotates in the simulation, see picture rotors02.png. I believe that pimpleDyMFoam might not allow multiple non-coaxial rotating zones. Do you have any suggestion?
Thank you very much for your help!
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File Type: png rotors.png (47.2 KB, 19 views)
File Type: jpg rotors02.jpg (99.4 KB, 17 views)
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multi rotating axes, openfoam rotor impeller, propellers

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