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The current implementation of the relative change used in the adaptive time stepping (mainly in the PID controller) added pressure and saturation in a way which practically meant that saturation...
Most of the work published on adaptive time stepping includes a test for deciding whether or not to reject the most recent time step. This is usually done by taking...
The PID controller formula (see articles referred to in the comments in the OPM code, e.g. "D. Kuzmin and S. Turek, Numerical simulation of turbulent bubbly flows (2004)") as implemented...
I've implemented rejection of a completed time step if the relative change is larger than the time step control tolerance (only for the general 3rd order controller). The code seems...
This is a new and improved version of #4856. It adds the choice between using just pressure or saturation, or both, when calculating the relative change used in the time...