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Journal Articles Physics of Fluids Year : 2009

Inertial range scaling of the scalar flux spectrum in two-dimensional turbulence

Abstract

Two-dimensional statistically stationary isotropic turbulence with an imposed uniform scalar gradient is investigated. Dimensional arguments are presented to predict the inertial range scaling of the turbulent scalar flux spectrum in both the inverse cascade range and the enstrophy cascade range for small and unity Schmidt numbers. The scaling predictions are checked by direct numerical simulations and good agreement is observed.
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Dates and versions

hal-00461426 , version 1 (14-06-2012)

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Wouter J.T. Bos, Benjamin Kadoch, Kai Schneider, Jean-Pierre Bertoglio. Inertial range scaling of the scalar flux spectrum in two-dimensional turbulence. Physics of Fluids, 2009, 21, pp.115105. ⟨10.1063/1.3263703⟩. ⟨hal-00461426⟩
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