Mixing and reaction efficiency in closed domains

We present a numerical study of mixing and reaction efficiency in closed
domains. In particular, we focus
our attention on laminar flows. In the case of inert transport the mixing
properties of the flows strongly depend
on the details of the Lagrangian transport. We also study the reaction
efficiency. Starting with a little spot of
product, we compute the time needed to complete the reaction in the
container. We find that the reaction
efficiency is not strictly related to the mixing properties of the flow.
In particular, reaction acts as a \