A glimpse of fluid turbulence from the molecular scale

Teruhisa S. Komatsu, Shigenori Matsumoto, Takashi Shimada, Nobuyasu Ito

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Large-scale molecular dynamics (MD) simulations of freely decaying turbulence in three-dimensional space are reported. Fluid components are defined from the microscopic states by eliminating thermal components from the coarse-grained fields. The energy spectrum of the fluid components is observed to scale reasonably well according to Kolmogorov scaling determined from the energy dissipation rate and the viscosity of the fluid, even though the Kolmogorov length is of the order of the molecular scale. © 2014 The Authors.
Original languageEnglish (US)
Pages (from-to)1450034
JournalInternational Journal of Modern Physics C
Volume25
Issue number08
DOIs
StatePublished - Aug 6 2014
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-I1-005-04
Acknowledgements: We wish to thank M. Miyama and Y. Murase for helpful advices. Numerical simulations were partly carried out by the use of the Plasma Simulator at the National Institute for Fusion Science and supported by the NIFS Collaboration Research programs (NIFS10KNSS014). This work was partly supported by Award No. KUK-I1-005-04 made by King Abdullah University of Science and Technology (KAUST).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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