Abstract
We study the collision probability p of particles advected by open flows with chaotic advection. We show that p scales with the particle size (or, alternatively, reaction distance) d as a power law whose coefficient is determined by the fractal dimensions of the invariant sets defined by the advection dynamics. We also argue that this same scaling also holds for the reaction rate of active particles in the low-density regime. These analytical results are compared to numerical simulations, and they are found to agree very well.
Original language | English |
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Article number | 274501 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 107 |
Issue number | 27 |
Early online date | 27 Dec 2011 |
DOIs | |
Publication status | Published - 30 Dec 2011 |