6533b7d5fe1ef96bd1263d8f
RESEARCH PRODUCT
A mathematical model of counterflow superfluid turbulence describing heat waves and vortex-density waves
Maria Stella MongiovìDavid JouMichele Sciaccasubject
PhysicsTurbulenceFluxNon-equilibrium thermodynamicsFOS: Physical sciencesVortexComputer Science ApplicationsSuperfluidityCondensed Matter - Other Condensed MatterClassical mechanicsHeat fluxModeling and SimulationCondensed Matter::SuperconductivityModelling and SimulationSecond soundLine (formation)Other Condensed Matter (cond-mat.other)description
The interaction between vortex density waves and high-frequency second sound in counterflow superfluid turbulence is examined, incorporating diffusive and elastic contributions of the vortex tangle. The analysis is based on a set of evolution equations for the energy density, the heat flux, the vortex line density, and the vortex flux, the latter being considered here as an independent variable, in contrast to previous works. The latter feature is crucial in the transition from diffusive to propagative behavior of vortex density perturbations, which is necessary to interpret the details of high-frequency second sound.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-07-01 | Mathematical and Computer Modelling |