English

Universality in fully developed turbulence

chao-dyn 2009-10-22 v1 Chaotic Dynamics

Abstract

We extend the numerical simulations of She et al. [Phys.\ Rev.\ Lett.\ 70, 3251 (1993)] of highly turbulent flow with 1515 \le Taylor-Reynolds number Reλ200Re_\lambda\le 200 up to Reλ45000Re_\lambda \approx 45000, employing a reduced wave vector set method (introduced earlier) to approximately solve the Navier-Stokes equation. First, also for these extremely high Reynolds numbers ReλRe_\lambda, the energy spectra as well as the higher moments -- when scaled by the spectral intensity at the wave number kpk_p of peak dissipation -- can be described by {\it one universal} function of k/kpk/k_p for all ReλRe_\lambda. Second, the ISR scaling exponents ζm\zeta_m of this universal function are in agreement with the 1941 Kolmogorov theory (the better, the large ReλRe_\lambda is), as is the ReλRe_\lambda dependence of kpk_p. Only around kpk_p viscous damping leads to slight energy pileup in the spectra, as in the experimental data (bottleneck phenomenon).

Keywords

Cite

@article{arxiv.chao-dyn/9312001,
  title  = {Universality in fully developed turbulence},
  author = {Siegfried Grossmann and Detlef Lohse},
  journal= {arXiv preprint arXiv:chao-dyn/9312001},
  year   = {2009}
}

Comments

14 pages, Latex, 5 figures (on request), 3 tables, submitted to Phys. Rev. E

R2 v1 2026-07-22T09:54:41.938Z