Hello Everyone! I think everybody faces to problem, which is called “Floating point exception”. It is interesting to know, what do you usually do to solve such problem?

Hi But are you getting that error in our platform or you mean like in simulation in general? Best,

Hi @Igarizza this is a very interesting question and I have been affected by this many times myself. I decided to write down some of my personal experience with floating point exceptions in CFD, hoping that it will be helpful to others as well. “Floating point exception” means that the solver dete…

@jprobst thanks a lot. Your post is really useful and interesting.

@jprobst , awesome! Thanks for sharing! Regarding the convection schemes, I would add to this point: [image] jprobst: Try to avoid higher-order schemes since they are more susceptible to divergence. that I would avoid higher-order schemes for the initial simulation setup until the simulation …

@dheiny good that you point this out - one should only trade off accuracy against stability where needed. Convergence can be treacherous sometimes. If one tries too hard to make a simulation converge, he could end up with a very inaccurate (or even wrong) result.

@dheiny Is it possible to pause the simulation and resume with higher-order schemes?

@e0625598 , unfortunately not yet. Right now you’d need to restart the sim from scratch with your adapted settings. But restarting from a paused state is something we are working on! I can not yet give you an exact release date though but will keep you posted!

[image] jprobst: 0.7 for velocity Decrease the time step size when the courant number is increasing can also help.

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