CFD Online Discussion Forums - [mesh manipulation] Problem with simpleFoam

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Problem with simpleFoam

Hi,

I am learning how to use OpenFoam and I am really lost right now.

I created a 3D mesh file using gmesh (based on a scilab script to generate a geo file with NACA dat file).

I created a case directory under the simpleFoam airFoil2D directory, but after the simpleFoam command on a terminal I get this error .

PHP Code:


		
			
--> FOAM FATAL IO ERROR: 
keyword FrontAndBack is undefined in dictionary "/home/appa/Bureau/essaiOF/0/p::boundaryField"

file: /home/appa/Bureau/essaiOF/0/p::boundaryField from line 25 to line 40.

    From function dictionary::subDict(const word& keyword) const
    in file db/dictionary/dictionary.C at line 461.

FOAM exiting

So I guess that the airFoil2D tutorial can not run my 3D example and I don't know how to it.

PHP Code:


		
			
/*--------------------------------*- 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     2.0;
    format      ascii;
    class       volScalarField;
    object      p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 2 -2 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    inlet
    {
        type            freestreamPressure;
    }

    outlet
    {
        type            freestreamPressure;
    }

    wall
    {
        type            zeroGradient;
    }

    frontAndBack
    {
        type            empty;
    }
}

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

I am not very good with C++ language so any hint would be helpful
thanks in advance

Hi;
the solver is looking for FrontAndBack and is not finding it in your pressure boundary condition because it states frontAndBack instead.

Always remember that openFoam is case sensitive so you need to change that to a capital initial word: FrontAndBack.

You're right !!thank you for this quick answer. In fact, I had to do some changes in the boundary file under the polyMesh directory to make the keywords match. I guess I have to learn how to make programs with C++ to be more efficient with OF.

I have the same error!!!

--> FOAM FATAL IO ERROR:
keyword s1 is undefined in dictionary "/home/xr12/Anna/buoyantBoussinesqSimpleFoam/hotRoom_20/0/p_rgh::boundaryField"

and my problem is not the capital leters, what could it be??

you have to make sure that the keyword s1 is defined in all the files, here it seems that you didn't define it in the file "/home/xr12/Anna/buoyantBoussinesqSimpleFoam/hotRoom_20/0/p_rgh"