[atul1018]

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:

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:

--> 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

[ms.hashempour]

Originally Posted by atul1018

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:

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:

--> 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

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

[saeed sangchooly]

Originally Posted by atul1018

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:

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:

--> 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

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

[atul1018]

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;

}

[SAIKRISHNA N]

Originally Posted by saeed sangchooly

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..

[Major0412]

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

[Gavin Tall]

Originally Posted by SAIKRISHNA N

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.