[hhu_lulu]

Hi,FOAMers:
I use blockMesh to generate a complete structured mesh to simulate flows in a curved open channel. When I check the result with slices in Tecplot, it can only do slices in x,y,z direction (Cartisian Coordinate), not in i,j,k direction.
I want to make slices in streamwise direction, that is, to slice along the centerline. So far, I have found the ijkMesh in src/OpenFOAM/meshes/ijkMesh, but still don't know its usage.
I post my grid image and blockMeshDict below.
Could anyone help me with this issue? Thanks in advance!

FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

scale   1.000;

vertices
(
    (0 0 0)				// 0
    (0.254 0 0)
    (0 0.476 0)
    (0.254 0.476 0)			
    (1.041 1.263 0)
    (1.517 1.263 0)
    (1.041 1.517 0)
    (1.517 1.517 0)			
    (2.304 2.304 0)
    (2.558 2.304 0)     // 9
	
	(0 0 0.057)
    (0.254 0 0.057)
    (0 0.476 0.057)
    (0.254 0.476 0.057)  	
    (1.041 1.263 0.057)
    (1.517 1.263 0.057)
    (1.041 1.517 0.057)
    (1.517 1.517 0.057)	
    (2.304 2.304 0.057)
    (2.558 2.304 0.057) //19
);

edges
(
	arc 2 6 (0.3049 1.2121 0)		// upper arcs
	arc 3 4 (0.4845 1.0325 0)
	arc 5 9 (2.2531 1.5679 0)
	arc 7 8 (2.0735 1.7475 0)
	
	arc 12 16 (0.3049 1.2121 0.057)	// lower arcs
	arc 13 14 (0.4845 1.0325 0.057)
	arc 15 19 (2.2531 1.5679 0.057)
	arc 17 18 (2.0735 1.7475 0.057)
);

blocks
(
    hex (0 1 3 2 10 11 13 12) (160 80 50) 			// 1
	simpleGrading 									
	(
		((0.5 0.5 10.331) (0.5 0.5 0.0968))
		1
		4.2562
	)	        
    
	hex (2 3 4 6 12 13 14 16) (160 240 50) 			// 2
	simpleGrading 
	(
		((0.5 0.5 10.331) (0.5 0.5 0.0968))
		1
		4.2562
	)
	
    hex (6 4 5 7 16 14 15 17) (160 80 50) 			// 3
	simpleGrading 
	(
		((0.5 0.5 10.331) (0.5 0.5 0.0968))
		1
		4.2562
	)
	
    hex (7 5 9 8 17 15 19 18) (160 240 50) 			// 4
	simpleGrading 
	(
		((0.5 0.5 10.331) (0.5 0.5 0.0968))
		1
		4.2562
	)
);

boundary						
(
    INLET
    {
        type cyclic;
		neighbourPatch OUTLET;
        faces
        (
            (0 1 11 10)
        );
    }
	
    OUTLET
    {
        type cyclic;
		neighbourPatch INLET;
        faces
        (
            (8 9 19 18)
        );
    }
	
    WALLS
    {
        type wall;
        faces
        (
            (2 0 10 12)		// left walls
            (6 2 12 16)		
            (7 6 16 17)
            (8 7 17 18)
			
			(1 3 13 11)		// right walls
			(3 4 14 13)
			(4 5 15 14)
			(5 9 19 15)
			
			(0 2 3 1)		// bottom walls
			(2 6 4 3)
			(4 6 7 5)
			(5 7 8 9)
        );
    }
    
	ATMOSPHERE
    {
        type symmetryPlane;
        faces
        (
            (10 11 13 12)
            (12 13 14 16)
            (14 15 17 16)
			(15 19 18 17)
        );
    }
);