Wave excitations in adjacent vortex filaments etc15 Tracking Number 232Presentation: Session: Superfluids 2 Room: Room E Session start: 13:30 Wed 26 Aug 2015 Niklas Hietala niklas.hietala@aalto.fi Affifliation: Aalto University Risto Hänninen risto.hanninen@aalto.fi Affifliation: Aalto University Hayder Salman H.Salman@uea.ac.uk Affifliation: University of East Anglia Carlo F. Barenghi carlo.barenghi@newcastle.ac.uk Affifliation: Newcastle University Topics: - Vortex dynamics and structure formation, - Turbulence in superfluids Abstract: 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. |