We consider a time-dependent, wind-driven, stochastic double-gyre ow, and investigate the interaction between the ow and coupled particles. It is known that noise can cause individual particles to escape from one gyre to another gyre. By computing the Lagrangian coherent structures (LCS) of the system, one can determine low and high probability regions of particle escape. By adjusting the coupling between two particles, it is possible to study the effects on particle escape for each scenario. In particular, for intermediate coupling, one can determine if the coupling force decreases or increases the escape time of the particles.
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