[viv123]

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.1.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 2 -2 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    inlet
    {
        type            zeroGradient;
    }

    outlet
    {
        type            fixedValue;
    value        uniform 0;
    }
    
    top
    {
    type        zeroGradient;
    }

    bottom
    {
    type        zeroGradient;
    }
    
    cylinder
    {
    type        zeroGradient;
    }
    
    sides
    {
        type            empty;
    }
}

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

This is the code in p file for flow over a circular cylinder. We are getting the error: cannot find patchfield entry for outlet. Please help.

[kmefun]

Could you post your test case?

[viv123]

Hi kmefun,

The test case is simple flow past a circular cylinder to observe laminar vortex shedding. I am using pisoFoam solver for this. 0>>p file I have given in older thread.

0>>U

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.1.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volVectorField;
    object      U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 1 -1 0 0 0 0];

internalField   uniform (0 0 0);

boundaryField
{
    inlet
    {
        type            fixedValue;
        value           uniform (1 0 0);
    }

    outlet
    {
        type            zeroGradient;
    }
    
    top
    {
    type        slip;
    }

    bottom
    {
    type        slip;
    }
    
    cylinder
    {
    type        fixedValue;
    value        uniform (0 0 0);
    }
    
    sides
    {
        type            empty;
    }
}

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

I found this code in a tutorial online and in the tutorial the code is giving correct results but on my machine when I run the same code I get "Cannot find patchField entry for outlet" error.

Many thanks!

[viv123]

blockMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.1.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

vertices
(
    (-23 -25 0)            //0
    ( 23 -25 0)            //1
    (40 -25 0)            //2
    (-0.7071 -0.7071 0)        //3
    ( 0.7071 -0.7071 0)        //4
    (-0.7071  0.7071 0)        //5
    ( 0.7071  0.7071 0)        //6
    (-23 25 0)            //7
    ( 23 25 0)            //8
    (40 25 0)            //9
    
    
    (-23 -25 1)            
    ( 23 -25 1)            
    (40 -25 1)            
    (-0.7071 -0.7071 1)        
    ( 0.7071 -0.7071 1)        
    (-0.7071  0.7071 1)        
    ( 0.7071  0.7071 1)        
    (-23 25 1)            
    ( 23 25 1)            
    (40 25 1)            
    
    
    
    
);

blocks
(
    hex (0 3 5 7 10 13 15 17) (200 60 1) simpleGrading (0.20 1 1)
    hex (1 4 3 0 11 14 13 10) (200 60 1) simpleGrading (0.20 1 1)
    hex (4 1 8 6 14 11 18 16) (200 100 1) simpleGrading (5 1 1)
    hex (6 8 7 5 16 18 17 15) (200 60 1) simpleGrading (5 1 1)
    hex (1 2 9 8 11 12 19 18) (100 100 1) simpleGrading (1 1 1)
);

edges
(
   arc 3 5 (-1 0 0)
   arc 13 15 (-1 0 1)
   arc 4 6 (1 0 0)
   arc 14 16 (1 0 1)
   arc 5 6 (0 1 0)
   arc 15 16 (0 1 1)
   arc 3 4 (0 -1 0)
   arc 13 14(0 -1 1)
);

boundary
(
    inlet
    {
        type wall;
        faces
        (
            (17 7 0 10)
        );
    }
    
    outlet
    {
        type wall;
        faces
        (
            (9 19 12 2)
        );
    }
    
    top
    {
        type wall;
        faces
        (
            (8 7 17 18)
        (9 8 18 19)
        );
    }
    
    bottom
    {
        type wall;
        faces
        (
            (0 1 11 10)
        (1 2 12 11)
        );
    }
    
    cylinder
    {
        type wall;
        faces
        (
            (5 6 16 15)
        (16 6 4 14)
        (4 3 13 14)
        (3 5 15 13)
        );
    }
    
    sides
    {
        type empty;
        faces
        (
            (7 8 6 5)
        (7 5 3 0)
        (3 4 1 0)
        (8 1 4 6)
        (8 9 2 1)
        
        (18 17 15 16)
        (15 17 10 13)
        (14 13 10 11)
        (18 16 14 11)
        (19 18 11 12)
        );
    }
);

mergePatchPairs
(
);

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

Apart from this there are other files: controlDict, decomposeParDict, fvSchemes, fvSolution and the usual RASProperties, transportProperties, turbulenceProperties files.

Any help would be appreciated

[kmefun]

blockMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.1.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 1;

vertices
(
    (-23 -25 0)            //0
    ( 23 -25 0)            //1
    (40 -25 0)            //2
    (-0.7071 -0.7071 0)        //3
    ( 0.7071 -0.7071 0)        //4
    (-0.7071  0.7071 0)        //5
    ( 0.7071  0.7071 0)        //6
    (-23 25 0)            //7
    ( 23 25 0)            //8
    (40 25 0)            //9
    
    
    (-23 -25 1)            
    ( 23 -25 1)            
    (40 -25 1)            
    (-0.7071 -0.7071 1)        
    ( 0.7071 -0.7071 1)        
    (-0.7071  0.7071 1)        
    ( 0.7071  0.7071 1)        
    (-23 25 1)            
    ( 23 25 1)            
    (40 25 1)            
    
    
    
    
);

blocks
(
    hex (0 3 5 7 10 13 15 17) (200 60 1) simpleGrading (0.20 1 1)
    hex (1 4 3 0 11 14 13 10) (200 60 1) simpleGrading (0.20 1 1)
    hex (4 1 8 6 14 11 18 16) (200 100 1) simpleGrading (5 1 1)
    hex (6 8 7 5 16 18 17 15) (200 60 1) simpleGrading (5 1 1)
    hex (1 2 9 8 11 12 19 18) (100 100 1) simpleGrading (1 1 1)
);

edges
(
   arc 3 5 (-1 0 0)
   arc 13 15 (-1 0 1)
   arc 4 6 (1 0 0)
   arc 14 16 (1 0 1)
   arc 5 6 (0 1 0)
   arc 15 16 (0 1 1)
   arc 3 4 (0 -1 0)
   arc 13 14(0 -1 1)
);

boundary
(
    inlet
    {
        type patch; 
        faces
        (
            (17 7 0 10)
        );
    }
    
    outlet
    {
        type patch;
        faces
        (
            (9 19 12 2)
        );
    }

[viv123]

Thanks for the reply.... Tried this but we are getting the same error

[viv123]

Could you please take a look at this site. They have given a tutorial video and codes there. We are trying to run their exact code but getting this error.

http://www.comflics.de/2014/08/openf...-shedding.html

Thanks!

[kmefun]

I download this test case and it is runing OK!
test.jpg
this is velocity field for 10 sec

[viv123]

I don't know why I am getting this error.
Could you help me with a few points?

1. Which version of OpenFOAM did you use?
2. Did you clone it from GitHub or did you download the zip file?

I am unable to do both so I opened every file and copy-pasted the content of all the files.

Thanks a lot for your time!

[kmefun]

I use OF 2.3
https://www.dropbox.com/s/ehb1f3hmub...dding.zip?dl=0

You can dowload the test case I ran above.

[viv123]

This works! You are awesome!!

Thank you once again

Now I will try to find why earlier it was not working.

[viv123]

I have been trying to simulate the case for flow over oscillating rectangular cylinder. In the blockMeshdict file, I removed the arc commands and changed the dimensions so as to make the bluff body and ran the same code for stationary rectangular cylinder. It ran for a time step of 0.025 second and then exited with an error. Any ideas regarding this?
Thanks in advance