Contribution of different turbulent scales to mixing and reaction between unpremixed reactants

Estimation of gas phase mixing in packed beds

“…In particular, a gas phase reaction is a process on a molecular scale and micromixing should be considered. On the other hand, under turbulent conditions the mixing on larger scales (mesomixing) can be controlling, and the micromixing can be neglected [15]. Mesomixing is a phenomenon that occurs on scales that are larger than those of molecular mixing but smaller than the reactor dimension, such as the size of the void regions between the particles [16].…”