CFD Online Discussion Forums - Axisymmetric cases Test with blockmesh and icoFoam

Hello,
I try to do CFD with axisymmetric meshes. My test case is very simple, The domain is pentahedric (inlet, upperwall, outlet, the axis and the 2 wedges.) Blockmesh works and generate the mesh (See the script at the end)
However, when I run icoFoam, I get the following errormessage, whereas I don't get it if the same mesh is 2D (inlet instead of wedges, and no axis)

Starting time loop

Time = 2e-08

Courant Number mean: 0 max: 0
#0 Foam::error::printStack(Foam:http://www.cfd-online.com/OpenFOAM_D...part/proud.gifstream&)
#1 Foam::sigFpe::sigFpeHandler(int)
#2 Uninterpreted: [0xffffe420]
#3 Foam::polyMesh::calcDirections() const
#4 Foam::polyMesh::directions() const
#5 Foam::fvMatrix<foam::vector<double> >::solve(Foam::Istream&)
#6 Foam::lduMatrix::solverPerformance Foam::solve<foam::vector<double> >(Foam::tmp<foam::fvmatrix<foam::vector<double> > > const&)
#7 main
#8 __libc_start_main
#9 __gxx_personality_v0 at ../sysdeps/i386/elf/start.S:122
Exception en point flottant

I try to change the axis position, but it changes nothing. What can I do?

Thank you in advance
Bruno

convertToMeters 0.001;

vertices
(
(0 10 -0.436)
(0 0 -1)
(50 0 -1)
(50 10 -0.436)
(0 10 0.436)
(50 10 0.436)
);

blocks
(
hex (0 1 2 3 4 1 2 5) (10 50 1) simpleGrading (1 1 1)
);

edges
(
);

patches
(
empty axis
(
(1 2 2 1)
)

wedge back
(
(0 1 2 3)
)

wedge front
(
(4 1 2 5)
)

patch inlet
(
(0 1 1 4)
)

wall top_flange
(
(0 3 5 4)
)

patch outlet
(
(3 2 2 5)
)
);
mergePatchPairs
(
);
// ************************************************** *********************** //