[kirik]

Hello.

I have been trying to adapt OpenFOAM Train tutorial to the problem of train passing through the tunnel. I have decided to start by changing the mesh so that train starts outside the tunnel, then i started adding dynamic motion to it. As it was easier, i decided to start without train and move the whole tunnel. That run was successful, but adding the train to the mesh gives the following error:

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Selecting dynamicFvMesh dynamicMotionSolverFvMesh
Selecting motion solver: velocityComponentLaplacian
Selecting motion diffusion: directional

PIMPLE: no residual control data found. Calculations will employ 2 corrector loops

Reading field p

Reading field U

Reading/calculating face flux field phi

[3] #0 Foam::error::printStack(Foam::Ostream&) at ??:?
[3] #1 Foam::sigFpe::sigHandler(int) at ??:?
[3] #2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
[3] #3 Foam::surfaceInterpolation::makeWeights() const at ??:?
[3] #4 Foam::surfaceInterpolation::weights() const at ??:?
[3] #5 Foam::surfaceInterpolationScheme<Foam::Vector<doub le> >::dotInterpolate(Foam::GeometricField<Foam::Vecto r<double>, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&) const at ??:?
[3] #6 Foam::fvc::flux(Foam::GeometricField<Foam::Vector< double>, Foam::fvPatchField, Foam::volMesh> const&) at ??:?
[3] #7 ? at ??:?
[3] #8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[3] #9 ? at ??:?
[gpu-server:10734] *** Process received signal ***
[gpu-server:10734] Signal: Floating point exception (8)
[gpu-server:10734] Signal code: (-6)
[gpu-server:10734] Failing at address: 0x3e9000029ee
[gpu-server:10734] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7f4468d7b4b0]
[gpu-server:10734] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f4468d7b428]
[gpu-server:10734] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354b0)[0x7f4468d7b4b0]
[gpu-server:10734] [ 3] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZNK4Foam20surfaceInterpolation 11makeWeightsEv+0x264)[0x7f446cfa46d4]
[gpu-server:10734] [ 4] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZNK4Foam20surfaceInterpolation 7weightsEv+0x19)[0x7f446cfa48c9]
[gpu-server:10734] [ 5] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZNK4Foam26surfaceInterpolation SchemeINS_6VectorIdEEE14dotInterpolateERKNS_14Geom etricFieldIS2_NS_13fvsPatchFieldENS_11surfaceMeshE EERKNS4_IS2_NS_12fvPatchFieldENS_7volMeshEEE+0x64)[0x7f446cfb2dd4]
[gpu-server:10734] [ 6] /opt/openfoam5/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam3fvc4fluxERKNS_14Geomet ricFieldINS_6VectorIdEENS_12fvPatchFieldENS_7volMe shEEE+0x124)[0x7f446d3f29e4]
[gpu-server:10734] [ 7] pimpleDyMFoam[0x4269a4]
[gpu-server:10734] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f4468d66830]
[gpu-server:10734] [ 9] pimpleDyMFoam[0x42ac49]
[gpu-server:10734] *** End of error message ***


As far as I understand, this is caused by incorrect boundary conditions on train faces, but i'm not sure. Running simpleFoam instead did not help.


Code in github.
Screenshot from paraview.

[jiahui_93]

hi, i'm simulating a component moving a channel and facing the same problem too. May i know if you hav found out the causes and solution? I will be grateful if you dont mind to share here =) thanks