CFD Online Discussion Forums - Missing cells in surface sampling output

Hello!

I defined a surface sample in my controlDict and saved the output in VTK format. When looking at one of the outputs in paraview, I found that one of the surfaces has cells missing. The other surfaces I sampled did not have this problem. The difference (as far as I can tell) with this surface is that it aligns perfectly with the cell faces (I'm using a uniform hexahedral mesh).

Any ideas why this might be? Could this be because of my interpolation scheme?

https://www.cfd-online.com/Forums/at...1&d=1634555781

I'm using OF 2.4.x

Here is my sampling sub-dictionary:

Code:

      sliceDataInstantaneous

      {

          type                 surfaces;

          functionObjectLibs   ("libsampling.so");



          enabled              true;



          outputControl        adjustableTime;

          //outputInterval         1; //when using timeStep

          writeInterval        100; //when using asjustableTime



          //timeStart            18000;

          //timeEnd              20000;



          surfaceFormat        vtk;



          interpolationScheme   cellPoint;



          fields

          (

              U

              ...

          );



          surfaces

          (

              ...

              slice_hub_centre

              {

                  type         plane;

                  basePoint    (1500 1500 90);

                  normalVector (0 0 1);

                  triangulate  false;

              }

              ...

          );

      }