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- Title
Energy Transfer of the Gross-Pitaevskii Turbulence in Weak-Wave-Turbulence and Strong-Turbulence Ranges.
- Authors
Yoshida, Kyo; Miura, Hideaki; Tsuji, Yoshiyuki
- Abstract
Numerical simulations of quantum fluid turbulence obeying the Gross-Pitaevskii equation are performed with the simulation sizes as large as the weak-wave-turbulence and the strong-turbulence wavenumber ranges coexist in one simulation. The energy cascade is observed within the simulated wavenumber range. The spectrum F(k) in the weak-wave-turbulence range agrees with the k - 1 scaling without logarithmic correction suggested by a closure approximation (Yoshida and Arimitsu in J Phys A Math Theor 46(33):335501, 2013) and the slope of F(k) in the strong-turbulence range is steeper than that suggested in the same closure approximation. The energy flow from the interaction energy to the kinetic energy during the cascade is also observed.
- Subjects
ENERGY transfer; GROSS-Pitaevskii equations; TURBULENCE; QUANTUM fluids; KINETIC energy
- Publication
Journal of Low Temperature Physics, 2023, Vol 210, Issue 1/2, p103
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-022-02819-4