{"id":33,"date":"2015-11-17T19:54:38","date_gmt":"2015-11-17T22:54:38","guid":{"rendered":"http:\/\/wp.df.uba.ar\/mininni\/?page_id=33"},"modified":"2016-02-22T14:58:34","modified_gmt":"2016-02-22T17:58:34","slug":"movies","status":"publish","type":"page","link":"http:\/\/wp.df.uba.ar\/mininni\/movies\/","title":{"rendered":"Movies"},"content":{"rendered":"
<\/a>Tracking hurricane Bill<\/h5>\n

As a proof of concept of a physically-based feature tracking method<\/a>, we tracked the position of the vortex core in a simulation of Hurricane Bill as it approached the south east coast of the United States in August 2009. The data set is from a simulation using the Weather Research Forecast Model (WRF-ARW). The feature path prediction method, which is based on the underlying physics of fluids, was implemented in VAPOR<\/a> (click here<\/a> or in the image to download the movie).<\/p>\n

\"Feature<\/a><\/p>\n

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<\/a>RECONNECTING QUANTUM KNOTS<\/h5>\n

With Patricio Clark di Leoni and Marc Brachet we studied the evolution of helicity in knots of vortex filaments in a superfluid or a Bose-Einstein condensate. We solved numerically the Gross-Pitaevskii equation using 5123<\/sup> grid points. Below you can see movies of reconnection of vortex lines in a configuration with two rings, and in a trefoil knot. The former conserves helicity during reconnection, while the latter does not.<\/p>\n

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