Huge runtime for TFM case

MFiX Bug report
#1

Hello Team, I’m running a TFM case which progressed only 0.01 secs in 12 hours on 8 CPUs. It has two concentric cylindrical STL boundaries and working fluid is trapped in annulus. There are cut cells and inner cylinder’s parts have tangential wall velocity boundary condition. Please see attached mfx file. MFiX.mfx (29.2 KB).

Everything else remaining same, without tangential wall velocities, case progressed upto 3.0 secs in 12 hours and 8 CPUs. I’m using version 19.3.1. What could be the issue?

Best,

#2

Please include all relevant files including the stl file(s). Go to the main menu, submit bug report to bundle all files into a zip file that you can attach here.