1932

Abstract

This article reviews evidence concerning the cornerstone dissipation scaling of turbulence theory: , with =const., ϵ the dissipation rate of turbulent kinetic energy , and an integral length scale characterizing the energy-containing turbulent eddies. This scaling is intimately linked to the Richardson-Kolmogorov equilibrium cascade. Accumulating evidence shows that a significant nonequilibrium region exists in various turbulent flows in which the energy spectrum has Kolmogorov's −5/3 wave-number scaling over a wide wave-number range, yet /, with ≈1≈, a global/inlet Reynolds number, and a local turbulence Reynolds number.

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/content/journals/10.1146/annurev-fluid-010814-014637
2015-01-03
2025-02-08
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  • Article Type: Review Article
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