Fluent Convergence for particles packing
 

Hi There

I have a packing of particles I 'm doing a reacting flow analysis on this, I would like to know if anybody here got similar experience regarding the meshing and getting convergence for such system. I have convergence problem for a packing of 30 particles and with 1.5 million mesh nodes. any put regarding the meshing and Fluent simulation is appreciated.

Thanks