Polygonal instabilities on interfacial vorticities.
نویسندگان
چکیده
We report the results of a theoretical investigation of the stability of a toroidal vortex bound by an interface. Two distinct instability mechanisms are identified that rely on, respectively, surface tension and fluid inertia, either of which may prompt the transformation from a circular to a polygonal torus. Our results are discussed in the context of three experiments, a toroidal vortex ring, the hydraulic jump, and the hydraulic bump.
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ورودعنوان ژورنال:
- The European physical journal. E, Soft matter
دوره 38 10 شماره
صفحات -
تاریخ انتشار 2015