[Michael@UW]

I write my data every 5 time steps using overPimpleDyMFoam (OpenFOAM v2006).

       writeControl    timeStep; 

       writeInterval   5;

So all the fileds are outputed as expected. But a field "p_normalisation" is also written out but at every time step. It causes an issue when I load the result into Paraview. I have to click 4 times to see the velocity as U is available every 5 time steps but Paraview load all the time steps.

What is p_normalisation for? How to suppress its output?

[Michael@UW]

I found the reason. Because I switched on the Debug option in controlDict file. So the filed is written out at every time step according to the code below:

         if (debug)
         {
             Pout<< "dynamicOversetFvMesh::solve() :"
                 << " writing matrix normalisation for field " << m.psi().name()
                 << " to " << scale.name() << endl;
         }

from https://www.openfoam.com/documentation/guides/latest/api/dynamicOversetFvMeshTemplates_8C_source.html

So I just need to switch off the debug to avoid outputing p_normalization.