Time step continuity error (cumulative very high ~ 0.89)
 

Hello Foamers,

I am trying to run a simpleFOAM solver for a 2D aerofoil, I have a strange output regarding the Time step continuity error, which says:

Even though the local error and global error seems fine but the cumulative looks very off, could anyone please comment on the issue? Thanks in advance.

Well, the cumulative error is the running total of the global error from each time step:

https://www.openfoam.com/documentati...uityError.html

so at some point in your earlier time steps you must have some iterations where the global continuity error was large. Perhaps seek this out and find out why? Otherwise, since this is steady state and the "problems" are in the past - perhaps you shouldn't care? If the solution is well converged now (we can't tell this from the single log file line that youposted), then everything is fine and it doesn't matter that you had a rocky road to get there (albeit future simulations might be smoother/easier if you figure out what the problem was).

Many thanks Tobermory for your help and elaborated explanation. I highly appreciate that.