[baba212]

hi guys
currently, I am trying to do a 2d simulation of the backward-facing step and I edited the cavity blockMesh and i can able to run the blockMesh but when I am inside paraFoam i cannot able to see my geometry and in the command prompt this is showing FOAM FATAL IO ERROR:
Cannot find patchField entry for inlet

kindly help me guys I am new to OpenFOAM

/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 0.1;

vertices
(
(0 0 0)
(8 0 0)
(8 0.5 0)
(0 0.5 0)
(8 1 0)
(0 1 0)
(20 1 0)
(20 0.5 0)
(20 0 0)
(20 -1 0)
(8 -1 0)

(0 0 0.1)
(8 0 0.1)
(8 0.5 0.1)
(0 0.5 0.1)
(8 1 0.1)
(0 1 0.1)
(20 1 0.1)
(20 0.5 0.1)
(20 0 0.1)
(20 -1 0.1)
(8 -1 0.1)
);

blocks
(
hex (0 1 2 3 11 12 13 14) (200 20 1) simpleGrading (1 1 1)
hex (3 2 4 5 14 13 15 16) (200 20 1) simpleGrading (1 1 1)
hex (2 7 6 4 13 18 17 15) (200 20 1) simpleGrading (1 1 1)
hex (1 8 7 2 12 19 18 13) (200 20 1) simpleGrading (1 1 1)
hex (10 9 8 1 21 20 19 12) (200 20 1) simpleGrading (1 1 1)

);

edges
(
);

boundary
(
inlet
{
type patch;
faces
(
(0 11 14 3)
(3 14 16 5)
);
}
outlet
{
type patch;
faces
(

(19 8 7 18)
(18 7 6 17)
(20 9 8 19)
);
}
frontAndBack
{
type empty;
faces
(
(1 0 3 2)
(11 12 13 14)
(3 2 4 5)
(14 13 15 16)
(7 2 4 6)
(13 18 17 15)
(8 1 2 7)
(12 19 18 13)
(9 10 1 8)
(21 20 19 12)
);
}
NO_SLIP_WALL
{
type wall;
faces
(
(16 15 4 5)
(15 17 6 4)
(12 11 0 1)
(20 21 10 9)
(10 21 12 1)
);
}

);

mergePatchPairs
(
);

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

[Gareth_CN]

Maybe you missed out a semicolon or a bracket in your BC files;
0/U or 0/p.... It depends on your error message.
You can refer to this post：http://https://www.cfd-online.com/Fo...ry-outlet.html

Gareth