Measuring the Mixing Efficiency in a Simple Model of Stirring:some Analytical Results and a Quantitative Study via Frequency Map Analysis
نویسندگان
چکیده
We prove the existence of invariant curves for a T – periodic Hamiltonian system which models a fluid stirring in a cylindrical tank, when T is small and the assigned stirring protocol is piecewise constant. Furthermore, using the Numerical Analysis of the Fundamental Frequency of Laskar, we investigate numerically the break down of invariant curves as T increases and we give a quantitative estimate of the efficiency of the mixing.
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