[sgr]

Hello FOAMers,

i have a problem at hand, which I have not been able to solve yet. I built an OpenFOAM case and then used refine mesh to create a second case. Now, I want to compare both results in Paraview. Here I was wondering, if it is at all possible to calculate absolute values of the difference between results from the coarser mesh and those from the finer one for every cell and at every time step in Paraview. This should look something like

u_diff = abs( u_case1 - u_case2).

I am not sure, if I have to use something like mapFields before, to map the data of the coarser mesh onto the finer one, and if so, how it is done for every time step?

I really appreciate any help on that matter.

Best regards,

sgr.