Abstract
We show that the long-time behavior of the stationary incompressible flow in R 3, which is close to a planar one, under broad generic assumptions, is, in a sense, stochastic. This stochasticity is a result of instability of the corresponding planar flow near the saddle points of the stream function. The stochastic process which describes long-time evolution of the slow component of the motion is calculated.
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Freidlin, M. Deterministic 3D-Perturbations of Planar Incompressible Flow Lead to Stochasticity. Journal of Statistical Physics 111, 1209–1218 (2003). https://doi.org/10.1023/A:1023052216159
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DOI: https://doi.org/10.1023/A:1023052216159