Time step recommendations

lanl / Multi-BGK

Conservative multispecies kinetic equation solver

Other

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Time step recommendations #4

Closed berselius closed 5 years ago

berselius commented 6 years ago

Add some features that check a CFL condition to ensure that the user entered a sensible timestep for the problem setup. Usually it is the collision rates that get you, though it is possible that the usual advection CFL could come in to play.

berselius commented 5 years ago

Now that there is an implicit solve, I'm ignoring the collisional CFL. I added CFL checks/warnings for the advection and acceleration terms.