NONLINEAR REACTIONS ADVECTED BY A FLOW

Flows can modify the effects of nonlinear reactions. Here we use a lat tice Boltzmann method to simulate an athermal flow which advects react ant species. As an example we consider a reactive system modeled by th e Brusselator which exhibits Turing structures; the system is subjecte d to mixing as induced by the wakes behind obstacles. The resulting ef fect is a modification of the reaction patterns which can be as dramat ic as their disappearance.