Inverse cascade and energy transfer in forced low-Reynolds number two-dimensional turbulence

J. Lega, T. Passot

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Using numerical simulations of the forced two-dimensional Navier-Stokes equation, it is shown that the amount of energy transferred to large scales is related to the Reynolds number in a unique fashion. It is also observed that the critical value of the initial Reynolds number for the onset of an inverse cascade is lowered as the scale of the forcing approaches the size of the system, or in the presence of anisotropy. This study is motivated by recent experiments with bacterial colonies, and their description in terms of a hydrodynamic model.

Original languageEnglish (US)
Pages (from-to)289-297
Number of pages9
JournalFluid Dynamics Research
Volume34
Issue number5
DOIs
StatePublished - May 1 2004

Keywords

  • Biological flows
  • Inverse cascade
  • Two-dimensional turbulence

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'Inverse cascade and energy transfer in forced low-Reynolds number two-dimensional turbulence'. Together they form a unique fingerprint.

  • Cite this