[COSMICBUDDHA]

Hello, i am making an axisymmetric sector of pipe . For visualising attaching image.

I have generated the blockMesh file as follows:

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  10
     \\/     M anipulation  | 
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
convertToMeters 1;
vertices
(
	(0 0 0)
	(0 0.00499524 0.000218097)
	(0 0.00499524 -0.000218097)
	(1.36 0 0)
	(1.36 0.00499524 0.000218097)
	(1.36 0.00499524 -0.000218097)
);
blocks
(
    hex (0 3 4 1 0 3 5 2) (200 50 1) simpleGrading (1 0.2 1)
);
edges
(
   arc 1 2 (0 0.005 0)
   arc 5 4 (1.36 0.005 0)
);
boundary
(
	inlet
	{
		type patch
		faces
		(
			(0 1 2 0)
		);
	}
	oulet
	{
		type patch
		faces
		(
			(3 5 4 3)
		);
	}
	surface
	{
		type wall
		faces
		(
			(2 1 4 5)
		);
	}
	axis
	{
		type symmetry
		faces
		(
			(0 3 3 0)
		);
	}
	front
	{
		type wedge
		faces
		(
			(4 1 0 3)
		);
	}
	back
	{
		type wedge
		faces
		(
			(3 0 5 2)
		);
	}
);
mergePatchPairs
(
);
// ************************************************************************* //

I have tried altering the orders, various combination and even different types of hexahedral blocks but I can't seem to get it right. Can you take a look at it and help me with what's wrong? I have been on this for 3 days now.

Here's the error:

Create time

Reading "blockMeshDict"

Creating block mesh from
    "system/blockMeshDict"
Creating block edges
No non-planar block faces defined
Creating topology blocks


--> FOAM FATAL IO ERROR: 
Block hex (0 3 4 1 0 3 5 2) (200 50 1) simpleGrading (1(1) 1(0.2) 1(1)) has inward-pointing faces
    4(0 0 2 1) 4(3 4 5 3) 4(1 2 5 4) 4(0 1 4 3) 4(0 3 5 2) 

file: /home/cb/OpenFOAM/cb-10/run/pipeFlow/system/blockMeshDict/blocks at line 28.

    From function void Foam::blockDescriptor::check(const Foam::Istream&)
    in file blockDescriptor/blockDescriptor.C at line 106.

FOAM exiting

[COSMICBUDDHA]

/*--------------------------------*- C++ -*----------------------------------* 
  =========                 |
  \      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \    /   O peration     | Website:  https://openfoam.org
    \  /    A nd           | Version:  10
     \/     M anipulation  |
*---------------------------------------------------------------------------*/
FoamFile
{
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

vertices
(
	(0.000000 0.000000 0.000000)
	(0.000131 0.004998 0.000000)
	(-0.000131 0.004998 0.000000)
	(0.000000 0.000000 1.360000)
	(0.000131 0.004998 1.360000)
	(-0.000131 0.004998 1.360000)
);

blocks
(
	hex (0 0 1 2 3 3 4 5) (1 50 200) simpleGrading (1 0.5 1)
);

edges
(
	arc 1 2(0.000000 0.005000 0.000000)
	arc 4 5(1.360000 0.005000 0.000000)
);

boundary
(
	inlet
	{
		type patch;
		faces
		(
			(0 0 2 1)
		);
	}
	outlet
	{
		type patch;
		faces
		(
			(3 4 5 3)
		);
	}
	axis
	{
		type empty;
		faces
		(
			 (0 3 3 0)
		);
	}
	pipewall
	{
		type wall;
		faces
		(
			 (4 1 2 5)
		);
	}
	front
	{
		type wedge;
		faces
		(
			(0 1 4 3)
		);
	}
	back
	{
		type wedge;
		faces
		(
			(3 5 2 0)
		);
	}
);
mergePatchPairs 
( 
); 

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

This one seems to work, but I have no idea why this one does and older one doesn't. Any insight on this would be really helpful.