TFM model computational divergence

Hello, I have run a calculation about the TFM today, but there is something wrong with it:“DT < DT_MIN. Recovery not possible!” what is the reason?
Thank you very much!
111.zip (30.4 MB)

Hi Chen. Have you read this section of the MFiX FAQ “What to do if a run does not converge”

https://mfix.netl.doe.gov/doc/mfix/21.4/html/reference/faq.html#what-do-i-do-if-a-run-does-not-converge

If you’ve read that and tried everything suggested there, please follow up on this thread. Thanks!