Taylor's (1935) dissipation surrogate reinterpreted

W. David McComb, A. Berera, Matthew Salewski, Samuel Yoffe

Research output: Contribution to journalLetter

17 Citations (Scopus)
141 Downloads (Pure)

Abstract

New results from direct numerical simulation of decaying isotropic turbulence show that Taylor’s expression for the viscous dissipation rate ε = CεU3/L is more appropriately interpreted as a surrogate for the inertial energy flux. As a consequence, the well known dependence of the Taylor prefactor Cε on Reynolds number Cε(RL)→Cε,∞ can be understood as corresponding to the onset of an inertial range.
Original languageEnglish
Article number061704
Number of pages4
JournalPhysics of Fluids
Volume22
Issue number6
DOIs
Publication statusPublished - 14 Jun 2010

Keywords

  • flow instability
  • flow simulation
  • turbulence
  • dissipation surrogate
  • reinterpreted

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