Hi, I have some questions regarding the autoshutoff level. In the knowledge base it is written that the autoshutoff level was an indication of how much energy left in the simulation region. Therefore;
Can we say that all simulations including some metal structures and open boundaries (PML) has to reach the autoshutoff minimum for sufficiently long simulation times? Because I think all energy has to leave the simulation region through open boundaries eventually.
Can we see the autoshutoff level as an indication of reliability of the simulation (because of question 1 above)? What shall I do if the simulation ends when autoshutoff level at 1.2 or 0.8 for example.
When I check the log files of some simulations I see the autoshutoff level first decreases and then starts to increase. Why the energy inside the simulation region starts to increase? I cannot be sure whether such simulations will diverge if I set the simulation time to a much higher value. Some of my simulations take 20-30 hours and it really hard to increase the simulation time and try to see what will happen.
Oscillations of autoshutoff level really confuses me. I would be very glad if someone helps.