Operations with time steps
Did my search firstly in mother google with "operations with timestep openfoam" and found nothing of interest.
I have my case file with "0", "constant", "system" folders. So I run my calculations and then get new time folders, lets say "1", "2" and "3". Inside them I have my vector and scalar field files.
Question is how can I compare these field values between different time steps? For example, volVectorField A in time folders "1" and "2". I want a loop where solving is done when two successive A solutions agree within some tolerance. So there is comparison done between A.timestep1 and A.timestep2. How this is written in OpenFoam? I know there is something like A.oldTime() which uses old time step values. I want this process to be iterative - something like A.time(i+1)-A.time(i).
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