Kelvin waves

Kolmogorov and Kelvin Wave Cascades in a Generalized Model for Quantum Turbulence

The three-dimensional visualisation above shows a close up of the initial condition used in this work. The red low-density isosurface correspond to quantum vortex lines whereas the greenish rendering are density fluctuations about the bulk value. Remarkably, due to non-local interactions and highly the helical properties of the flow, helical fluctuations of density are observed unlike standard simulations of the Gross-Pitaevskii model. Incompressible kinetic energy spectrum The figure above displays the kinetic energy spectrum resulting form this initial condition.

Evolution of a Superfluid Vortex Filament Tangle Driven by the Gross-Pitaevskii Equation

Kelvin-Wave Cascade and Dissipation in Low-Temperature Superfluid Vortices