Journal article
Statistics of turbulence in the energy-containing range of Taylor-Couette compared to canonical wall-bounded flows
D Krug, XIA Yang, CM De Silva, R Ostilla-Mónico, R Verzicco, I Marusic, D Lohse
Journal of Fluid Mechanics | CAMBRIDGE UNIV PRESS | Published : 2017
DOI: 10.1017/jfm.2017.625
Abstract
Considering structure functions of the streamwise velocity component in a framework akin to the extended self-similarity hypothesis (ESS), de Silva et al. (J. Fluid Mech., vol. 823, 2017, pp. 498-510) observed that remarkably the large-scale (energy-containing range) statistics in canonical wall-bounded flows exhibit universal behaviour. In the present study, we extend this universality, which was seen to encompass also flows at moderate Reynolds number, to Taylor-Couette flow. In doing so, we find that also the transversal structure function of the spanwise velocity component exhibits the same universal behaviour across all flow types considered. We further demonstrate that these observatio..
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Awarded by National Science Foundation
Awarded by PRACE project
Funding Acknowledgements
The authors would like to express their gratitude to Professor A. Smits for sharing the Superpipe data. We further would like to thank J. C. del Alamo for making the channel simulations available. The TC data were obtained using the PRACE project 2013091966 resource CURIE based in France at Genci/CEA. Continuous financial support by the Australian Research Council, Dutch NWO and from ERC is gratefully acknowledged. D.K. acknowledges financial support by the University of Melbourne through the McKenzie fellowship. R.O.M. was supported in part by the National Science Foundation under grant no. PHY11-25915.