[gannicus]

Hi guys, I am a new user to openfoam and lately i have been experiencing some difficulties.

I have written a mesh for a naca0012 aerofoil. I was able to generate the mesh in openFoam with no mesh refinements however if i tried to refine the mesh around the aerofoil in the Y axis by using simple grading I get the following error :

--> FOAM FATAL ERROR:
Inconsistent point locations between block pair 0 and 4
probably due to inconsistent grading.

From function blockMesh::calcMergeInfo()
in file blockMesh/blockMeshMerge.C at line 294.

I have attatched an image which describes the blocks used in the mesh and the blockMeshDict file.

vertices
(

(0.5 -5 0)//0
(1 -5 0)//1
(6 -5 0)//2
(0.5 0.052940 0)//3
(0.5 -0.052940 0)//4
(1 0 0)//5
(6 0 0)//6
(0.5 5 0)//7
(1 5 0)//8
(6 5 0)//9
(0.5 -5 0.1)//10
(1 -5 0.1)//11
(6 -5 0.1)//12
(0.5 0.052940 0.1)//13
(0.5 -0.052940 0.1)//14
(1 0 0.1)//15
(6 0 0.1)//16
(0.5 5 0.1)//17
(1 5 0.1)//18
(6 5 0.1)//19

);

blocks
(
hex (0 1 5 4 10 11 15 14) (16 80 1) simpleGrading (1 1 1)//0
hex (1 2 6 5 11 12 16 15) (80 80 1) simpleGrading (1 1 1)//1
hex (3 5 8 7 13 15 18 17) (16 80 1) simpleGrading (1 1 1)//2
hex (5 6 9 8 15 16 19 18) (80 80 1) simpleGrading (1 1 1)//3
hex (3 4 0 7 13 14 10 17) (80 80 1) simpleGrading (1 1 1)//4

If i were to change the simpleGrading from (1 1 1) to (1 20 1) I get the error.

any help is appreciated thanks