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Clara O'Farrell
Graduate Student

The colored lines show the Lagrangian coherent structures (LCS), which represent the boundaries of this cross section through an elliptic vortex ring. In the region where the red and yellow spirals overlap, the fluid is swirling in an eddy-like fashion. The red and yellow lines form the boundaries of the region of non-rotating fluid which is trapped by the vortex.

ofarrell@cds.caltech.edu

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