Hi all,
I'm running a simulation with CFDEM 2.7.1 to model particle fluidization in a cylinder fluidized bed. The bed dimensions are: 15 cm diameter and 22.5 cm tall. In my fluidized bed, I have near 600,000 particles (particle size 1.5 mm diameter). Two runs were setup with 32 and 64 CPUs. The computation is really slow in either 32 or 64 CPU cases. I checked the log file and found out the problem is in the coupling process between OpenFOAM and LIGGGHTS. In each coupling, it approximately takes more than 10 minutes to finish. Is it normal in this situation?
I have another question about the domain partition in parallel process. Are LIGGGTHS and OpenFOAM using the same partition of the domain or they just set up their own partition schemes?
Feng