«Quasi-Planck» spectra of capillary turbulence on the surface of liquid hydrogen
M. Yu. Brazhnikov, L. V. Abdurakhimov, S. V. Filatov, A. A. Levchenko
Institute of Solid State Physics RAS, 142432 Chernogolovka, Russia
Abstract
We report the first observation of «quasi-Planck» spectra of
capillary turbulence on the surface of liquid hydrogen in the dissipation
domain. Capillary waves have been driven by low-frequency random force. We
have observed that the frequency spectrum of surface elevation changes its
dependence from power-like
at middle-frequency domain to «quasi-Planck» distribution
at higher frequencies. The frequency ωd is
proportional to the boundary frequency between inertial interval and
dissipation domain and it is scaled up with the increase of driving force.