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Universality and scaling phenomenology of small-scale turbulence in wall-bounded flows

2014
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Physics of Fluids
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The Reynolds number scaling of flow topology in the eigenframe of the strain-rate tensor is investigated for wall-bounded flows, which is motivated by earlier works showing that such topologies appear to be qualitatively universal across turbulent flows. The databases used in the current study are from direct numerical simulations (DNS) of fully developed turbulent channel flow (TCF) up to friction Reynolds number Re τ ≈ 1500, and a spatially developing, zero-pressure-gradient turbulent

doi:10.1063/1.4868364
fatcat:zrlddw6cvba63l2w4npkuek7om