[erfan.azizi]

Hello,
I am trying to create a cylinder with a cylindrical wall inside it. i wrote a blockMeshDict file and all the things are true, except when i checkMesh that, there is a problem with inlet boundary. and it fails to check inlet. does anybody know what the problem is?
thank you so much.

the blockMeshDict file is here:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
/*AxiSymmetric mesh!

x =R*cos (theta/2)
y =R*sin (theta/2) theta = angle!!!!!!!!

theta= 5 degree */
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
convertToMeters 0.001;

vertices
(
(0 0 0) //0
(0.0026172 0.05994 0)//1
(0.0026172 0.05994 28.5)//2
(0 0 28.5)//3
(-0.0026172 0.05994 0)//4
(-0.0026172 0.05994 28.5)//5
(0.0098145 0.224775 0)//6
(0.0098145 0.224775 28.5)//7
(-0.0098145 0.224775 0)//8
(-0.0098145 0.224775 28.5)//9
(0.4362 9.99 0) //10
(0.4362 9.99 28.5) //11
(-0.4362 9.99 0) //12
(-0.4362 9.99 28.5) //13
(0 0 30) //14
(0.0026172 0.05994 30)//15
(-0.0026172 0.05994 30)//16
(0.0098145 0.224775 30)//17
(-0.0098145 0.224775 30)//18
(0.4362 9.99 30) //19
(-0.4362 9.99 30) //20
);

blocks
(
hex (0 1 4 0 3 2 5 3) (40 1 40) simpleGrading (1 1 1)//element0
hex (1 6 8 4 2 7 9 5) (40 1 40) simleGrading (1 1 1)//element1
hex (6 10 12 8 7 11 13 9) (40 1 40) simpleGrading (1 1 1)//element2
hex (3 2 5 3 14 15 16 14) (40 1 40) simpleGrading (1 1 1)//element3
//hex (2 7 9 5 15 17 18 16) (40 1 40) simpleGrading (1 1 1)//element4
hex (7 11 13 9 17 19 20 18) (40 1 10) simpleGrading (1 1 1)//element5
);

edges
(
);

boundary
(
front
{
type wedge;
faces
(
(0 1 2 3)
(1 6 7 2)
(6 10 11 7)
(3 2 15 14)
// (2 7 17 15)
(7 11 19 17)
);
}

back
{
type wedge;
faces
(
(0 4 5 3)
(4 8 9 5)
(8 12 13 9)
(3 5 16 14)
// (5 9 18 16)
(9 13 20 18)
);
}

fixedWall
{
type wall;
faces
(
(10 11 13 12)
(11 19 20 13)
);

}

walls
{
type wall;
faces
(
(2 15 16 5)
// (2 7 17 15)
(7 17 18 9)
//(5 9 18 16)
(2 7 9 5)
//(15 17 18 16)
)
}

inlet
{
type patch;
faces
(
(14 15 16 14)
);
}

outlet
{
type patch;
faces
(
(0 1 4 0)
);
}

axis
{
type empty;
faces
(
(0 3 3 0)
(3 14 14 3)
);
}
);

mergePatchPairs
(
);

///////////////////////////////////