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Wave excitations in adjacent vortex filaments

Lookup NU author(s): Professor Carlo Barenghi

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Abstract

© TU Delft. The interactions of the nearest neighbour vortices are argued to play a significant role in the crossover range of scales that lies between the Kolmogorov-Richardson cascade and the Kelvin wave driven cascade in superfluid turbulence. In this work, we study how a wave excitation (a Kelvin wave or a soliton) on a vortex affects a nearby straight vortex. Our numerical simulations reveal that coherent excitations can hop from one vortex filament to another whilst retaining their coherent properties.

Publication metadata

Author(s): Hietala N, Hanninen R, Salman H, Barenghi CF

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of the 15th European Turbulence Conference (ETC 2015)

Year of Conference: 2015

Online publication date: 26/08/2015

Acceptance date: 01/01/1900

Publisher: TU Delft

URL: http://etc15.fyper.com/mobview/presentation/806

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