Minimum required DEM inlet solids Velocity

MFiX Bug report
#1

Hello,
I have encountered the error for my dem simulation . I have checked similar topics, however the solutions provided didn’t help with my case. I’m using version 21.4 and I uploaded my project file. Can you kindly run and tell me what’s wrong with it? Here are my error.

When I set a particle inlet speed, it prompts that the speed is too low and gives the minimum speed that should be provided, but when I set it according to the speed provided by it, he prompts that the speed is still too low and provides a more high minimum speed again.

75~$8W$W9}CEWRJ`G4MYU}H
75~$8W$W9}CEWRJ`G4MYU}H813×350 42.8 KB

20220524221827
20220524221827811×392 50.5 KB

And this is my bug report.
d50design_0+1.5point270_2022-05-24T220842.815523.zip (1.1 MB)

Looking forward to your help！Thank you!

#2

I think the main issue is you want to use a solids volume fraction of 0.6 which is pretty large. If you can use a lower value that should help. I could use a solids fraction of 0.4 and a velocity of v=-0.6m/s which should provide the same flowrate you want.

#3

Thanks for your help, I will try it!