[limpideyes]

Hello,

I've tried "cutPlaneSurface" with a tutorial "windAroundBuildings" in OpenFOAM v 9.

In order to get a cutPlaneSurface file under a system folder,

foamGet cutPlaneSurface

And the cutPlaneSurface file was modified as followed:

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  9
     \\/     M anipulation  |
-------------------------------------------------------------------------------
Description
    Writes out cut-plane surface files with interpolated field data in VTK
    format.

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

point       (0 0 0);
normal      (0 0 1);

fields      (U p);

interpolate true; // If false, write cell data to the surface triangles.
                  // If true, write interpolated data at the surface points.

#includeEtc "caseDicts/postProcessing/surface/cutPlaneSurface.cfg"

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

And inserted

#includeFunc cutPlaneSurface

under the system/controlDict/(sub-directory) functions.

After implementing as follows:

surfaceFeatures
blockMesh
snappyHexMesh -overwrite
simpleFoam

When I checked my case directory, the postProcessing folder and cutPlaneSurface folder were created. However, under the folders, "vtk files" were not created. Each time folder under the cutPlaneSurface folder was empty.

So, I inserted,

libs	    ("libsampling.so");

in the cutPlaneSurface code. But vtk files were not created either.




So, I tried a tutorial "pitzDaily",

foamGet cutPlaneSurface

And

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  9
     \\/     M anipulation  |
-------------------------------------------------------------------------------
Description
    Writes out cut-plane surface files with interpolated field data in VTK
    format.

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

point       (0 0 0);
normal      (0 0 1);

fields      (p U);

interpolate true; // If false, write cell data to the surface triangles.
                  // If true, write interpolated data at the surface points.

#includeEtc "caseDicts/postProcessing/surface/cutPlaneSurface.cfg"

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

And inserted

#includeFunc cutPlaneSurface

under the system/controlDict/(sub-directory) functions.

Then,
blockmesh
simpleFoam

After that, it worked well. Under each time folder of the postProcessing folder and cutPlaneSurface folder, vtk files were well created.

I do not know why 'cutPlaneSurface' worked for the tutorial 'pitzDaily' but does not work for the tutorial 'windAroundBuilding'. I have compared them but I could not figure out what the reasons were.

Can anyone help?

Thanks in advance!