Taylor's (1935) dissipation surrogate reinterpreted

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

Research output: Contribution to journalLetter

16 Citations (Scopus)
135 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

Fingerprint

isotropic turbulence
Direct numerical simulation
direct numerical simulation
Reynolds number
Turbulence
dissipation
Fluxes
energy

Keywords

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

Cite this

McComb, W. David ; Berera, A. ; Salewski, Matthew ; Yoffe, Samuel. / Taylor's (1935) dissipation surrogate reinterpreted. In: Physics of Fluids. 2010 ; Vol. 22, No. 6.
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Taylor's (1935) dissipation surrogate reinterpreted. / McComb, W. David; Berera, A.; Salewski, Matthew; Yoffe, Samuel.

In: Physics of Fluids, Vol. 22, No. 6, 061704, 14.06.2010.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Taylor's (1935) dissipation surrogate reinterpreted

AU - McComb, W. David

AU - Berera, A.

AU - Salewski, Matthew

AU - Yoffe, Samuel

PY - 2010/6/14

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N2 - 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.

AB - 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.

KW - flow instability

KW - flow simulation

KW - turbulence

KW - dissipation surrogate

KW - reinterpreted

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DO - 10.1063/1.3450299

M3 - Letter

VL - 22

JO - Physics of Fluids

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