I browse the porous media in Chapter 7 cell zone and boundary condition. the porous media is set as stationary and the reaction flow passes through it. 

I don't think this is a proper way to simulate an entrained flow combustor with coal and biomass particle. this method could only simulate a certain time point scenario, and can't reflect particle status at different locations of the combustor. Am I interpreting it correctly?

Thank you for your reply.