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Hydraulic jump used as a shallow-water analogue of shock instability recognized in stellar core collapse. Here, spiral mode activity results in a rotating triple point, seen in experiment (left) and reproduced in numerical simulation of 2D shallow-water equations (right). Selected for an Editors' Suggestion and a Viewpoint in Physics. [Thierry Foglizzo, Frédéric Masset, Jérôme Guilet, and Gilles Durand, Phys. Rev. Lett. 108, 051103 (2012)] |
