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yPlus calculation:Fatal Error saying turbulence model not found

Hello Foamers

I am doing LES simulation (Smagorinsky model with VanDriest delta function) of BFS case. I wanted to calculate yPlus values as per provided mesh resolution using runtime postprocessing. In doing so, I included following in controlDict:

Code:

functions

{

    #includeFunc  residuals



    yPlus1

    {

        type            yPlus;

        libs            (fieldFunctionObjects);

        writeControl    writeTime;

    }

}

The simulation runs successful but it doesn't calculate yPluss and gives the following error:

Code:

--> FOAM Warning : 

    From function virtual bool Foam::functionObjects::yPlus::execute()

    in file yPlus/yPlus.C at line 178

    Unable to find turbulence model in the database: yPlus will not be calculated

yPlus yPlus1 write:

    writing field yPlus

    patch walls y+ : min = 0, max = 0, average = 0

fieldAverage fieldAverage1 write:

    Calculating averages



    Writing average fields



End



Finalising parallel run

I also tried to calculate yPlus after the simulation has completed instead of runtime post processing but it gives same Fatal Error. Please let me know if i can fix this issue somehow.

PS: I am using OpenFOAM-v-1912 and running the simulation in parallel.

Best Regards
Atul Jaiswal

Quote:

Originally Posted by atul1018 (Post 791673)

Code:

functions

{

    #includeFunc  residuals



    yPlus1

    {

        type            yPlus;

        libs            (fieldFunctionObjects);

        writeControl    writeTime;

    }

}

The simulation runs successful but it doesn't calculate yPluss and gives the following error:

Code:

--> FOAM Warning : 

    From function virtual bool Foam::functionObjects::yPlus::execute()

    in file yPlus/yPlus.C at line 178

    Unable to find turbulence model in the database: yPlus will not be calculated

yPlus yPlus1 write:

    writing field yPlus

    patch walls y+ : min = 0, max = 0, average = 0

fieldAverage fieldAverage1 write:

    Calculating averages



    Writing average fields



End



Finalising parallel run

Just follow this terminal code (as an example:) )
simpleFoam -postProcess -func yPlus

Quote:

Originally Posted by atul1018 (Post 791673)

Code:

functions

{

    #includeFunc  residuals



    yPlus1

    {

        type            yPlus;

        libs            (fieldFunctionObjects);

        writeControl    writeTime;

    }

}

The simulation runs successful but it doesn't calculate yPluss and gives the following error:

Code:

--> FOAM Warning : 

    From function virtual bool Foam::functionObjects::yPlus::execute()

    in file yPlus/yPlus.C at line 178

    Unable to find turbulence model in the database: yPlus will not be calculated

yPlus yPlus1 write:

    writing field yPlus

    patch walls y+ : min = 0, max = 0, average = 0

fieldAverage fieldAverage1 write:

    Calculating averages



    Writing average fields



End



Finalising parallel run

I also have this problem with multiphaseEulerFoam solver. have you figured it out?

Hi

I was able to solve this problem but I dont remember exactly how. As far as I recall, changing the write control to outputTime solved the issue. So the following code should work:

yPlus1
{

type yPlus;
libs (fieldFunctionObjects);
writeControl outputTime;
writeInterval 1;

}

Quote:

Originally Posted by saeed sangchooly (Post 830694)

I also have this problem with multiphaseEulerFoam solver. have you figured it out?

I am also facing the same issue with multiphaseEulerFoam. Please let me know if anyone has a solution..

As ms.hashempour said, you must add your solver name, for example:
yourSolverName -postProcess -func yPlus

Quote:

Originally Posted by SAIKRISHNA N (Post 831517)

I am also facing the same issue with multiphaseEulerFoam. Please let me know if anyone has a solution..

Have you solved this problem? I now face the same problem.
I try to use pisoFoam and interFoam to calculate y+ ：add a FOyPlus dictionary file to the system, and include the functions in controlDict, which can be calculated normally;
But it can't be calculated in reactingTwoPhaseEulerFoam.