Inverse cascade of energy in helical turbulence

Franck Plunian, Andrei Teimurazov, Rodion Stepanov, Mahendra K. Verma

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Using direct numerical simulation of hydrodynamic turbulence with helicity forcing applied at all scales, a near-maximum helical turbulent state is obtained, with an inverse energy cascade at scales larger than the energy forcing scale and a forward helicity cascade at scales smaller than the energy forcing scale. In contrast to previous studies using decimated triads, our simulations contain all possible triads. By computing the shell-to-shell energy fluxes, we show that the inverse energy cascade results from weakly non-local interactions among homochiral triads. Varying the helicity injection range of scales leads to necessary conditions to obtain an inverse energy cascade.
Original languageEnglish (US)
JournalJournal of Fluid Mechanics
StatePublished - May 18 2020
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Condensed Matter Physics


Dive into the research topics of 'Inverse cascade of energy in helical turbulence'. Together they form a unique fingerprint.

Cite this