Inertial effects on reactive particles advected by turbulence - art. no. 026307

We study the problem of the advection of passive particles with inertia in a two-dimensional, synthetic, and stationary turbulent flow. The asymptotic analytical result and numerical simulations show the importance of inertia l bias in collecting the particles preferentially in certain regions of the flow, depending on their density relative to that of the flow. We also stu dy how these aggregates are affected when a simple chemical reaction mechan ism is introduced through a Eulerian scheme. We find that inertia can be re sponsible for maintaining a stationary concentration pattern even under non favorable reactive conditions or destroying it under favorable ones.