[Magnox]

Hello,



I'm trying to run a simulation using the pisoFoam solver with OpenFOAM 8, however I'm getting the following error:

--> FOAM FATAL IO ERROR: 
keyword RASModel is undefined in dictionary "/home/harvyp/OpenFOAM/harvyp-8/run/TestCase2/constant/turbulenceProperties.RAS"

file: /home/harvyp/OpenFOAM/harvyp-8/run/TestCase2/constant/turbulenceProperties.RAS from line 22 to line 26.

    From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const
    in file db/dictionary/dictionary.C at line 570.

FOAM exiting

Here is my turbulenceProperties dictionary:

/*--------------------------------*- 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;
    location    "constant";
    object      turbulenceProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

simulationType RAS;

RAS
{
    model        kEpsilon;

    turbulence      on;

    printCoeffs     on;
}

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

Apologies if there is a trivial solution to this problem as I am very new to OpenFOAM, but my efforts to solve the issue myself have been unsuccessful. Therefore, any guidance as to how I can solve this error would be greatly appreciated.



Many thanks.

[Tobermory]

Try change:

    model        kEpsilon;

to

    RASModel        kEpsilon;

Alternatively, since you seem to be using the v8 Foundation version, you should be using a momentumTransport file to define the turbulence model, which uses your original nomenclature - check one of the pisoFoam tutorials for example.

[ghita]

Thank you so much , i had this problem and your post helped me solve it