[dasith0001]

Hi Foamers,

I have ''wallHeatFlux'' function working perfectly fine in OpenFOAM 7.

So I call the function wallHeatFlux from 'controlDict' as ;

functions
{

    #include "vtkWrite"
    #include "wallHeatFlux"
}

and then the 'wallHeatFlux' function in the 'system' folder looks like

wallHeatFlux1
{
    // Mandatory entries (unmodifiable)
    type            wallHeatFlux;
    libs            (fieldFunctionObjects);
    region           topSolid;

    // Optional entries (runtime modifiable)
    patches     (maxZ maxZ1); // (wall1 "(wall2|wall3)");
    //qr          qr;

    // Optional (inherited) entries
    
    executeControl  timeStep;
    executeInterval 1;
    writeControl    writeTime;
}

wallHeatFlux2
{
    // Mandatory entries (unmodifiable)
    type            wallHeatFlux;
    libs            (fieldFunctionObjects);
    region           wallSolid;

    // Optional entries (runtime modifiable)
    patches     (maxY); // (wall1 "(wall2|wall3)");
    //qr          qr;

    // Optional (inherited) entries
    
    executeControl  timeStep;
    executeInterval 1;
    writeControl    writeTime;
}

This arrangment works fine in Openfoam 7 ( v2012) so far without an issue but when I shift to OpenFOAM 10, errors start to pops up.

PHP Code:

[1] --> FOAM FATAL IO ERROR:
[1] keyword type is undefined in dictionary "IOstream/functions/wallHeatFlux"
[1]
[1] file: IOstream/functions/wallHeatFlux from line 0 to line 0.
[1]
[1]     From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const 


I think there is different way of defining 'wallHeatFlux' in OpenFOAM 10. And there is really one example in the tutorial which makes no sense to me.

I would really appreciate if you guys direct me in in the correct path.

Thanks
Dasith

[kerim]

<div>Dear Dasith, <br></div><div>In my case everything is OK with wallHeatFlux in OF 10. I have used wallHeatFlux which is worked fine in OF 7 too. Please, see the attached compressed files.


Kerim</div>

[dasith0001]

Hi Kerim,

Thank you for the quick respond, it works fine now!

However I had to make a slight change to the 'wallHeatFlux' file as I am running 'chtMultiRegionFoam' as follows.

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  7
     \\/     M anipulation  |
-------------------------------------------------------------------------------
Description
    Calculates the heat-flux at wall patches, outputting the data as a
    volScalarField.

\*---------------------------------------------------------------------------*/

type            wallHeatFlux;
libs            ("libfieldFunctionObjects.so");

    region           topSolid;

    // Optional entries (runtime modifiable)
    
    patches     (maxZ maxZ1); // (wall1 "(wall2|wall3)");


    // Optional (inherited) entries
    
    executeControl  timeStep;
    executeInterval 1;
    writeControl    writeTime;



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

works just fine.

Thank you
Dasith

[kerim]

Well done. Good luck!