Encountered the error “Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation” while running the CFD-CGP heat transfer example on MFIX25.3

MFiX
1

Dear developer,
I am attempting to replicate Patil and Lu’s work on CGP-CFD fluidized bed cooling particles, but when I compute the CGP W=8 case, I consistently encounter the error “Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation” error at the very first step. Adjusting DES_INTERP_WIDTH and mesh size has not been effective. The problematic step in the .log file is very similar: Elapsed time: 11.80s Time remaining (est): 1.94h
t= 0.0169 Dt= 0.1000E-03 NIT= 12 Sm= 0.0000 Hl=-0.11034E-01elapsed= 12.s
Mass imbalance%(0,MMAX): 0.1097E-03. Could this be a porosity calculation issue?

CGPW8.mfx (14.6 KB)

2

I have identified the issue. My apologies for taking up everyone’s time.

3

I’m afraid to ask, but I also need to look at CG heat transfer, do you have a reference for this Patil and Lu work?