Predicting the progress of diffusively limited chemical reactions in the presence of chaotic advection

Details Predicting the progress of diffusively limited chemical reactions in the presence of chaotic advection Predicting the progress of diffusively limited chemical reactions in the presence of chaotic advection

2007-06-15

arxiv.org/abs/0706.2212v1

Phys. Rev. Lett. 96, 024501 (2006)

Physics

Fluid Dynamics

4 pages, 4 figures, updated references

Scientific paper

10.1103/PhysRevLett.96.024501

The effects of chaotic advection and diffusion on fast chemical reactions in two-dimensional fluid flows are investigated using experimentally measured stretching fields and fluorescent monitoring of the local concentration. Flow symmetry, Reynolds number, and mean path length affect the spatial distribution and time dependence of the reaction product. A single parameter \lambda*N, where \lambda is the mean Lyapunov exponent and N is the number of mixing cycles, can be used to predict the time-dependent total product for flows having different dynamical features.

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