Update 7/6

MHD

Still having issues with both the restart and the current fresh run.

The restart is starting properly now, but still has immediate pressure protections (not unexpected) and very high CFL to start, so it almost immediately freezes.

I'm trying to restart the fresh run from earlier frames with a higher diffusion coefficient. Running into the same issue with high CFL conditions, but this time it seems linked to the higher diffusion coefficient. Going back to an earlier frame reduces the equilibrium predicted wall time, but still trying to figure out where I need to go back to in order to get a reasonable value. Removing the maxsolverspeed helps with, but does not entirely solve, this problem. The pressure protections here are mostly in ghost zones, and pretty much entirely at various grid intersections.

Charge exchange

Solar-type wind going slow, pretty much as expected. Should speed up as the shock relaxes. But appears to be running well.

https://www.pas.rochester.edu/~adebrech/ChargeExchange/HD209458b_charge_exchange_solar_species00221.png

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