[pt39]

I've been trying to simulate an opening at a constant 20 psi that fills a closed space that is roughly 5''x3.33''x.214''.

I'm simulating this for 10 ms, at a timestep of 1e-5s. But my solution diverges.

I think this might be due to a poor spatial resolution in my mesh.

I read about something called the "mean free path", the average distance between collisions. Does this have any effect on what mesh resolution I need?

If so, I am simulating a blast wave, and according to wikipedia: "Shock waves are not conventional sound waves; a shock wave takes the form of a very sharp change in the gas properties on the order of a few mean free paths (roughly micro-meters at atmospheric conditions) in thickness. ".

Would my element size need to be on this 1e-6 order of magnitude to accurately simulate my model?

I am using SST for turbulence, Total Energy for thermal.