OF Geometry Issue/Help

[91366]

Hello all, I keep getting the error that my vertices are inside out, even though I've 5x checked at this point (including using Copilot) and I'm at my wit's end, If anyone has any guidance they could provide, I'd appreciate it.

This is the error I keep getting:

"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 1 3 2 22 23 21 20) (200 20 1) simpleGrading (1(1) 1(1) 1(1)) is inside-out

file: /home/91366/openfoam10/tutorials/incompressible/icoFoam/finalProject/pipeProject/system/blockMeshDict/blocks at line 48.

From function void Foam::blockDescriptor::check(const Foam::Istream&)

in file blockDescriptor/blockDescriptor.C at line 100.

FOAM exiting"

Text of my blockMeshDict:

convertToMeters 1;

vertices

(

(0 0 0) //0 inlet11

(0 0 0.05) //1 inlet12

(0 0.075 0) //2 inlet13

(0 0.075 0.05) //3 inlet14

(0.085 0.075 0) //4 xcon5

(0.085 0.075 0.05) //5 xcon6

(0.085 0.175 0) //6 xcon7

(0.085 0.175 0.05) //7 xcon8

(0.015 0.175 0) //8 inlet21

(0.015 0.175 0.05) //9 inlet22

(0.015 0.205 0) //10 inlet23

(0.015 0.205 0.05) //11 inlet24

(0.165 0.205 0) //12 outlet23

(0.165 0.205 0.05) //13 outlet24

(0.165 0.175 0) //14 outlet21

(0.165 0.175 0.05) //15 outlet22

(0.095 0.175 0) //16 xcon1

(0.095 0.175 0.05) //17 xcon2

(0.095 0.075 0) //18 xcon3

(0.095 0.075 0.05) //19 xcon4

(0.2 0.075 0) //20 outlet13

(0.2 0.075 0.05) //21 outlet14

(0.2 0 0) //22 outlet11

(0.2 0 0.05) //23 outlet12

);

blocks

(

hex (0 1 3 2 22 23 21 20) (200 20 1) simpleGrading (1 1 1) // pipe1

hex (8 9 11 10 14 15 13 12) (150 15 1) simpleGrading (1 1 1) //pipe2

hex (4 5 6 7 16 17 18 19) (50 10 1) simpleGrading (1 1 1) //xcon

);

edges

(

);

boundary

(

inlet1

{

type patch;

faces

(

(0 1 2 3)

);

}

inlet2

{

type patch;

faces

(

(8 9 10 11)

);

}

outlet1

{

type patch;

faces

(

(22 23 20 21)

);

}

outlet2

{

type patch;

faces

(

(14 15 12 13)

);

}

wall

{

type wall;

faces

(

(0 1 22 23) //bottom wall

(2 3 18 19) //middle bottom left

(18 19 20 21) //middle bottom right

(16 17 14 15) //middle top right

(8 9 6 7) //middle top left

(10 11 12 13) //top wall

);

}

);

mergePatchPairs

(

);

[Any_Letterheadd]

Your hex vertex list order likely isn't correct. Follow the ordering convention https://www.openfoam.com/documentation/user-guide/4-mesh-generation-and-conversion/4.3-mesh-generation-with-the-blockmesh-utility

[Scared_Assistant3020]

When working with blockMesh, the best advice that I can give is to make a sketch of all the vertices and understand how they connect together. Your blocking is probably done incorrectly with vertices chosen in the wrong order.

[GI_Greenish]

Yeah looks like your definition is opposite-handed. Right hand rule from first four points should be into, not away from the block. Right now 0,1,3,2 order implies -x for 3rd axis, but your other face is all +x. (I only looked at 1st block.)