[sino75]

Hi,

I have created a geometry in blockMeshDict, but when I enter checkMesh, I get following error:

Wedge patch 'back' is not planar.
At local face at (-0.000126865 0.148202 0.0145967) the normal (-2.41311e-17 -0.0980169 0.995185) differs from the average normal (-1.05634e-19 -0.0980172 0.995185) by 1.21686e-13
Either correct the patch or split it into planar parts
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam:olyMesh::calcDirections() const at ??:?
#4 Foam:olyMesh:olyMesh(Foam::IOobject const&) at ??:?
#5
at ??:?
#6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7
at ??:?
Gleitkomma-Ausnahme

Can you please help me? Thanks in regard.

My blockMeshDict is attached:
/*--------------------------------*- 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 2.3;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 0.01;

H 50;
h -10;
h2 #calc "$h/2";
hM 30;
h3 -7.5;


r1 0.18; // Radius Jet
r2 2.5; // Radius bluff-body
r3 15; // Radius coflow
r4 #calc "($r2+$r3)/2";
r5 #calc "($r1+$r2)/2";
alpha1 5.625;

alpha #calc "$alpha1*3.14159265358979323846/180";
c1 #calc "$r1*cos($alpha)"; //0.17913325
c2 #calc "$r2*cos($alpha)"; //2.487961817
c3 #calc "$r3*cos($alpha)"; //14.9277709
c4 #calc "$r4*cos($alpha)"; //8.707866358
c5 #calc "$r5*cos($alpha)"; //1.333547534

s1 #calc "$r1*sin($alpha)"; //0.017643085
s2 #calc "$r2*sin($alpha)"; //0.24504285
s3 #calc "$r3*sin($alpha)"; //1.470257105
s4 #calc "$r4*sin($alpha)"; //0.857649977
s5 #calc "$r5*sin($alpha)"; //0.131342968

s1m #calc "-1*$r1*sin($alpha)";
s2m #calc "-1*$r2*sin($alpha)";
s3m #calc "-1*$r3*sin($alpha)";
s4m #calc "-1*$r4*sin($alpha)";
s5m #calc "-1*$r5*sin($alpha)";

vertices
(
(0 0 0) //0
($H 0 0) //1

($H $c1 $s1m) //2
($H $c2 $s2m) //3
($H $c3 $s3m) //4
(0 $c3 $s3m) //5
(0 $c2 $s2m) //6
(0 $c1 $s1m) //7

($H $c1 $s1) //8
($H $c2 $s2) //9
($H $c3 $s3) //10
(0 $c3 $s3) //11
(0 $c2 $s2) //12
(0 $c1 $s1) //13

($h $c2 $s2m) //14
($h $c3 $s3m) //15
($h $c3 $s3) //16
($h $c2 $s2) //17

($h $c4 $s4m) //18
($h $c4 $s4) //19
($H $c4 $s4m) //20
($H $c4 $s4) //21
(0 $c4 $s4m) //22
(0 $c4 $s4) //23

($h2 $c2 $s2m) //24
($h2 $c2 $s2)
($h2 $c3 $s3)
($h2 $c3 $s3m)

($h2 $c4 $s4m)
($h2 $c4 $s4)

(0 $c5 $s5m)
(0 $c5 $s5)
($H $c5 $s5)
($H $c5 $s5m)

($hM 0 0)
($hM $c1 $s1m)
($hM $c5 $s5m)
($hM $c2 $s2m)
($hM $c4 $s4m)
($hM $c3 $s3m)

($hM $c1 $s1)
($hM $c5 $s5)
($hM $c2 $s2)
($hM $c4 $s4)
($hM $c3 $s3)

($h3 0 0)
($h3 $c1 $s1m)
($h3 $c1 $s1)
);

blocks
(

hex (45 0 7 46 45 0 13 47) (80 20 1) simpleGrading (0.1 8 1) //0

hex (0 34 35 7 0 34 40 13) (80 20 1) simpleGrading (1 8 1) //1
hex (34 1 2 35 34 1 8 40) (80 20 1) simpleGrading (0.1 8 1) //2

hex (7 35 36 30 13 40 41 31) (80 25 1) simpleGrading (1 8 1) //3
hex (35 2 33 36 40 8 32 41) (80 25 1) simpleGrading (0.1 8 1) //4

hex (30 36 37 6 31 41 42 12) (80 25 1) simpleGrading (1 0.5 1) //5
hex (36 33 3 37 41 32 9 42) (80 25 1) simpleGrading (0.1 0.5 1) //6

hex (6 37 38 22 12 42 43 23) (80 30 1) simpleGrading (1 8 1) //7
hex (37 3 20 38 42 9 21 43) (80 30 1) simpleGrading (0.1 8 1) //8

hex (22 38 39 5 23 43 44 11) (80 20 1) simpleGrading (1 0.5 1) //9
hex (38 20 4 39 43 21 10 44) (80 20 1) simpleGrading (0.1 0.5 1) //10

hex (14 24 28 18 17 25 29 19) (50 30 1) simpleGrading (10 8 1) //11
hex (18 28 27 15 19 29 26 16) (50 20 1) simpleGrading (10 0.5 1) //12
hex (24 6 22 28 25 12 23 29) (50 30 1) simpleGrading (0.1 8 1) //13
hex (28 22 5 27 29 23 11 26) (50 20 1) simpleGrading (0.1 0.5 1) //14
);

boundary
(
AXIS
{
type empty;
faces
(
(0 34 34 0)
(34 1 1 34)
);
}
OUTLET
{
type patch;
faces
(
(1 2 8 1)
(2 33 32 8)
(33 3 9 32)
(3 20 21 9)
(20 4 10 21)
);
}
COFLOW
{
type patch;
faces
(
(14 18 19 17)
(18 15 16 19)
);
}
BLUFF
{
type wall;
faces
(
(13 7 30 31)
(31 30 6 12)
);
}
FUEL
{
type inlet;
faces
(
(45 46 47 45)
);
}
WALL
{
type wall;
faces
(
(4 39 44 10)
(39 5 11 44)
(5 27 26 11)
(27 15 16 26)
);
}
BLUFF_WALL
{
type wall;
faces
(
(6 24 25 12)
(24 14 17 25)
);
}
JET_WALL
{
type wall;
faces
(
(7 46 47 13)
);
}
front
{
type wedge;
faces
(
(45 0 7 46)

(0 34 35 7)
(34 1 2 35)

(7 35 36 30)
(35 2 33 36)

(30 36 37 6)
(36 33 3 37)

(6 37 38 22)
(37 3 20 38)

(22 38 39 5)
(38 20 4 39)

(14 24 28 18)
(24 6 22 28)
(18 28 27 15)
(28 22 5 27)
);
}
back
{
type wedge;
faces
(
(45 0 13 47)

(0 34 40 13)
(34 1 8 40)

(13 40 41 31)
(40 8 32 41)

(31 41 42 12)
(41 32 9 42)

(12 42 43 23)
(42 9 21 43)

(23 43 44 11)
(43 21 10 44)

(17 25 29 19)
(25 12 23 29)
(19 29 26 16)
(29 23 11 26)
);
}
);

mergePatchPairs
(
);

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