5 papers
Decay of two-dimensional superfluid turbulence over pinning surface
Filip Novotný, Marek TalÃÅ, Emil Varga
We report on the free decay of quasi-two-dimensional turbulence in superfluid He confined within nanofluidic channels. Using a pump-probe technique, we observe a complex decay…
Temporal decay of vortex line density in rotating thermal counterflow of He II
Filip Novotný, Marek TalÃÅ, Emil Varga +1
Horizontally () and axially () rotating counterflow of superfluid He (He~II) generated thermally…
Spherically symmetric counterflow turbulence in open geometry
Tomáš Dunca, Filip Novotný, Marek TalÃÅ +4
We report preliminary results on spherical thermal counterflow generated by a small central heater in an open geometry, an open bath of superfluid He~II, as closed-cell experiments…
Critical behavior and multistability in quasi-two-dimensional turbulence
Filip Novotný, Marek TalÃÅ, Å imon Midlik +1
Two-dimensional (2D) turbulence, despite being an idealization of real flows, is of fundamental interest as a model of the spontaneous emergence of order from chaotic flows. The em…
Turbulent dissipative coupling in nanoscale multimode superfluid acoustics
Filip Novotný, Marek TalÃÅ, Emil Varga
Superfluid helium, the inviscid low-temperature phase of liquid \4He, enables investigation of flows with reduced dimensionality since, due to the vanishing viscosity, sub-micron f…