Reply To: FLUENT MultiPhase – floating point exception 6hrs into calculations

January 26, 2024 at 9:08 am

Samantha Fedorenko

Subscriber

I changed some settings in the multiphase transient model, such as the mesh (much more refined), and the oulet and inlet pressure be the same (100,000Pa gauge). After 3000 iterations, before the flow managed to escape far from the inlet nozzle, the floating point error returned.

According to the logs, it detected backflow at the outlet and then divergence, and then the floating point error.

Here are the results at the 3000th iteration:

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