Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2006-07-09
S.V. Prants, M.V. Budyansky, M.Yu. Uleysky, G.M. Zaslavsky. Chaotic mixing and transport in a meandering jet flow. Chaos. V.16
Nonlinear Sciences
Chaotic Dynamics
Scientific paper
10.1063/1.2229263
Mixing and transport of passive particles are studied in a simple kinematic model of a meandering jet flow motivated by the problem of lateral mixing and transport in the Gulf Stream. We briefly discuss a model streamfunction, Hamiltonian advection equations, stationary points, and bifurcations. The phase portrait of the chosen model flow in the moving reference frame consists of a central eastward jet, chains of northern and southern circulations, and peripheral westward currents. Under a periodic perturbation of the meander's amplitude, the topology of the phase space is complicated by the presence of chaotic layers and chains of oscillatory and ballistic islands with sticky boundaries immersed into a stochastic sea. Typical chaotic trajectories of advected particles are shown to demonstrate a complicated behavior with long flights in both the directions of motion intermittent with trapping in the circulation cells being stuck to the boundaries of vortex cores and resonant islands. Transport is asymmetric in the sense that mixing between the circulations and the peripheral currents is, in general, different from mixing between the circulations and the jet. The transport properties are characterized by probability distribution functions (PDFs) of durations and lengths of flights. Both the PDFs exhibit at their tails power-law decay with different values of exponents.
Budyansky M. V.
Prants Sergey V.
Uleysky Michael Y.
Zaslavsky George M.
No associations
LandOfFree
Chaotic mixing and transport in a meandering jet flow does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Chaotic mixing and transport in a meandering jet flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chaotic mixing and transport in a meandering jet flow will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-151977