6 papers
Multi-Scale Perturbation Analysis in Hydrodynamics of the Superfluid Turbulence. Derivation of the Dresner Equation
Sergey K. Nemirovskii, Sergey A. Ponomarenko
The Hydrodynamics of Superfluid Turbulence (HST) describes the flows (or counterflows) of HeII in the presence of a chaotic set of vortex filaments, so called superfluid turbulence…
Chaotic Quantum Vortexes In A Weakly Non Ideal Bose Gas. Thermodynamic Equilibrium And Turbulence
Sergey K. Nemirovskii, Makoto Tsubota
We study the stochastic behavior of a set of chaotic vortex loops appeared in imperfect Bose gas. Dynamics of Bose-gas is supposed to obey Gross-Pitaevskii equation with additional…
Energy Spectrum of Vortex Tangle
Tsunehiko Araki, Makoto Tsubota, Sergey K. Nemirovskii
The energy spectrum of superfluid turbulence in the absence of the normal fluid is studied numerically. In order to discuss the statistical properties, we calculated the energy spe…
Stochastic Dynamics of a Vortex Loop. Large Scale Stirring Force
Sergey K. Nemirovskii, A. Ja. Baltsevich
Stochastic dynamics of a vortex filament obeying local induced approximation equation plus random agitation is investigated by analytical and numerical methods. The character of a…
Stochastic Dynamics of a Vortex Loop. Thermal Equilibrium
Sergey K. Nemirovskii, Luiza P. Kondaurova, Makoto Tsubota
We study stochastic behavior of a single vortex loop appeared in imperfect Bose gas. Dynamics of Bose-condensate is supposed to obey Gross-Pitaevskii equation with additional noise…
Applications of Gaussian model of the vortex tangle in the superfluid turbulent HeII
Sergey K. Nemirovskii, Mikhail V. Nedoboiko
In spite of an appearance of some impressive recent results in understanding of the superfluid turbulence in HeII they fail to evaluate many characteristics of vortex tangle needed…