Hi Cendrine, welcome to MFiX. I’m glad to hear you were able to install MFiX on the M1.
Have you checked that the normal vectors are pointing in the correct direction, as the error message suggests?
We are not able to diagnose problems unless you attach your input files. The best way to do this is to go to the main MFiX menu and select “Submit bug report”, this will create a ZIP file which you can upload here and we will take a look.
Tested with MFiX 23.3.2 on Mac M1 just to be sure. With the file as-is, I’m getting an error “End of file reached earlier in file : data_kf_0001.txt”
And with that 4 changed to a 3 as per Jeff’s suggestiona above, the case ran normally,… I am not able to reproduce the “no standard fluid cells in the computation” error.