[ASo]

Hi All,

I'm trying to run a simulation with pimpleFoam. I'm using the Pimple parameters as explained here :
http://www.cfd-online.com/Forums/blo...hm-part-i.html
http://www.cfd-online.com/Forums/blo...m-part-ii.html

The pimpleFoam solver is not running : the error message says : "U is undefined in dictionary "". "

Does anyone know what could be my error.

I give you the fvSolution file and an extract of log.pimpleFoam with the error message.

Thanks for answers

fvSolution :

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2.3.0                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

PIMPLE
{
    nNonOrthogonalCorrectors 0;
    nCorrectors         1;
    nOuterCorrectors    50;

    residualControl
    {
        U
        {
                tolerance  1e-5;
                relTol     0;
        }
        p
        {
                tolerance  5e-4;
                relTol     0;
        }
     }
}

relaxationFactors
{
    fields
    {
        p       0.3;
        pFinal   1;
    }
    equations
    {
        "U|k|omega"           0.3;
        "(U|k|omega)Final"     1;
    }
}
potentialFlow
{
    nNonOrthogonalCorrectors 10;
pRefCell        0;
    pRefValue       0;

    residualControl
    {
        p               1e-5;
        U               1e-5;
    
       k        1e-5;
    omega 1e-5;
    }
}

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

Extract of log.pimpleFoam :

IMPLE: iteration 1
[18] [1] [6] [12] [19] [0] [7] [13] 
[7] 
[7] --> FOAM FATAL IO ERROR: 
[7] keyword U is undefined in dictionary ""
[7] 
[7] file: 
[7] 
[7]     From function dictionary::subDict(const word& keyword) const
[7]     in file db/dictionary/dictionary.C at line 643.
[7] 
FOAM parallel run exiting
[7] 

[1] 
[1] --> FOAM FATAL IO ERROR: 
[1] keyword U is undefined in dictionary ""
[1] 
[1] file: 
[1] 
[1]     From function dictionary::subDict(const word& keyword) const
[1]     in file db/dictionary/dictionary.C at line 643.
[1] 
FOAM parallel run exiting
[1]

[tas38]

Your fvSolution has many issues. For example, it does not state the solvers for the U
and p equations. The links in your post are only showing subsections of the fvSolution file.

Take a look at the tutorials for an example.

[ASo]

Thanks for the answer.