CFD Online Discussion Forums - [pimpleDyMFoam][dynamicMeshDict] "Attempt to return dictionary entry as a primitive"

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)

- OpenFOAM (https://www.cfd-online.com/Forums/openfoam/)

- - [pimpleDyMFoam][dynamicMeshDict] "Attempt to return dictionary entry as a primitive" (https://www.cfd-online.com/Forums/openfoam/219165-pimpledymfoam-dynamicmeshdict-attempt-return-dictionary-entry-primitive.html)

[pimpleDyMFoam][dynamicMeshDict] "Attempt to return dictionary entry as a primitive"

I am trying to simulate a propeller in pimpleDyMFoam. Meshing has been successful, but on running the solver, the following error appears:

Code:



Attempt to return dictionary entry as a primitive



file: /home/mslab02/Saurabh/OpenFoamTutorials/incompressible/pimpleDyMFoam/TestPropeller2/constant/dynamicMeshDict.solver from line 26 to line 26.



    From function ITstream& primitiveEntry::stream() const

    in file db/dictionary/dictionaryEntry/dictionaryEntry.C at line 83.



FOAM aborting



#0  Foam::error::printStack(Foam::Ostream&) at ??:?

#1  Foam::IOerror::abort() at ??:?

#2  Foam::dictionaryEntry::stream() const at ??:?

#3  Foam::motionSolver::New(Foam::polyMesh const&, Foam::IOdictionary const&) at ??:?

#4  Foam::motionSolver::New(Foam::polyMesh const&) at ??:?

#5  Foam::dynamicMotionSolverFvMesh::dynamicMotionSolverFvMesh(Foam::IOobject const&) at ??:?

#6  Foam::dynamicFvMesh::addIOobjectConstructorToTable<Foam::dynamicMotionSolverFvMesh>::New(Foam::IOobject const&) at ??:?

#7  Foam::dynamicFvMesh::New(Foam::IOobject const&) at ??:?

#8  ? at ??:?

#9  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"

#10  ? at ??:?

It seems like the issue is with the dynamicMeshDict, line 26. This is my dynamicMeshDict file:

Code:

/*--------------------------------*- C++ -*----------------------------------*\

| =========                 |                                                 |

| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |

|  \\    /   O peration     | Version:  3.0.x                                 |

|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |

|    \\/     M anipulation  |                                                 |

\*---------------------------------------------------------------------------*/

FoamFile

{

    version     2.0;

    format      ascii;

    class       dictionary;

    location    "constant";

    object      dynamicMeshDict;

}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //



dynamicFvMesh   solidBodyMotionFvMesh;



motionSolverLibs ( "libfvMotionSolvers.so" );



solidBodyMotionFvMeshCoeffs

{

    cellZone        propellerTip;



    solidBodyMotionFunction  rotatingMotion;

    rotatingMotionCoeffs

    {

        origin      (0 0 0);

        axis        (0 1 0);

        omega       105; // rad/s //126 rad/sec == 1200 rpm

    }

}

The line causing the trouble seems to be this one:

Code:

solidBodyMotionFunction rotatingMotion;

It would be a great help if someone could help me out with this problem.

Regards,
Sorabh

Which version of OpenFOAM you are using?
is it 3.0.x?
I think you are using an old dictionary version with a recent version of OpenFOAM.

Quote:

Originally Posted by CFD_10 (Post 739304)

Which version of OpenFOAM you are using?
is it 3.0.x?

I am using OpenFOAM 5.0

I think there is some changes in OpenFOAM 5 version. I think solidBodyMotionFvMesh is changed to solidBodyMotionFvMesh
Here is an example:

Code:

FoamFile

{

    version     2.0;

    format      ascii;

    class       dictionary;

    location    "constant";

    object      dynamicMeshDict;

}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //



dynamicFvMesh   dynamicMotionSolverFvMesh;



motionSolverLibs ( "libfvMotionSolvers.so" );



motionSolver    solidBody;



cellZone        propellerTip;



solidBodyMotionFunction  rotatingMotion;



origin        (0 0 0);

axis          (0 1 0);

omega         105;

You can find other examples by executing the following:

Code:

find $FOAM_TUTORIALS -name 'dynamicMeshDict'

Well, I changed the syntax as instructed. This is the new dynamicMeshDict:

Code:

FoamFile

{

    version     2.0;

    format      ascii;

    class       dictionary;

    location    "constant";

    object      dynamicMeshDict;

}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //



dynamicFvMesh   dynamicMotionSolverFvMesh;



motionSolverLibs ("libfvMotionSolvers.so");



motionSolver    solidBody;



cellZone        innerCylinderSmall;



solidBodyMotionFunction  rotatingMotion;



origin      (0 0 0);

axis        (0 1 0);

omega       158; // rad/s





// ************************************************************************* //

But the following error pops up:

Code:

keyword solver is undefined in dictionary "/home/mslab02/Saurabh/V15_V13_NoPorosity_ConcentratedSlurry_worked/constant/dynamicMeshDict"

Change your cellZone to propellerTip.