TY - JOUR
T1 - Measurement of Local Dissipation Scales in Turbulent Pipe Flow
AU - Bailey, S. C.C.
AU - Hultmark, M.
AU - Schumacher, J.
AU - Yakhot, V.
AU - Smits, A. J.
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/6/29
Y1 - 2009/6/29
N2 - Local dissipation scales are a manifestation of the intermittent small-scale nature of turbulence. We report the first experimental evaluation of the distribution of local dissipation scales in turbulent pipe flows for a range of Reynolds numbers: 2.4×104≤ReD≤7.0×104. Our measurements at the nearly isotropic pipe center line and within the anisotropic logarithmic layer show excellent agreement with distributions that were previously calculated from numerical simulations of homogeneous isotropic box turbulence and with those predicted by theory. The reported results suggest a universality of the smallest-scale fluctuations around the classical Kolmogorov dissipation length.
AB - Local dissipation scales are a manifestation of the intermittent small-scale nature of turbulence. We report the first experimental evaluation of the distribution of local dissipation scales in turbulent pipe flows for a range of Reynolds numbers: 2.4×104≤ReD≤7.0×104. Our measurements at the nearly isotropic pipe center line and within the anisotropic logarithmic layer show excellent agreement with distributions that were previously calculated from numerical simulations of homogeneous isotropic box turbulence and with those predicted by theory. The reported results suggest a universality of the smallest-scale fluctuations around the classical Kolmogorov dissipation length.
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U2 - 10.1103/PhysRevLett.103.014502
DO - 10.1103/PhysRevLett.103.014502
M3 - Article
AN - SCOPUS:68649092575
SN - 0031-9007
VL - 103
JO - Physical Review Letters
JF - Physical Review Letters
IS - 1
M1 - 014502
ER -