Journal article

High-order generalisation of the diagnostic scaling for turbulent boundary layers

Ramis Orlu, Antonio Segalini, Joseph Klewicki, P Henrik Alfredsson

JOURNAL OF TURBULENCE | TAYLOR & FRANCIS LTD | Published : 2016

Abstract

The diagnostic scaling concept, introduced for the streamwise turbulence intensity in wall-bounded turbulent flows (Alfredsson, Segalini and Örlü, Phys. Fluids 2011;23:041702), is here extended and generalised not only for the higher even-order central statistical moments, but also for the odd moments and thereby the probability density distribution of the streamwise velocity fluctuations. Turbulent boundary layer data up to a friction Reynolds number of 60,000 are employed and demonstrate the feasibility of the diagnostic scaling for the data throughout the logarithmic and wake regions. A comparison with the generalised logarithmic law for even-order moments by Meneveau and Marusic (J. Flui..

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University of Melbourne Researchers

Grants

Funding Acknowledgements

Ramis Orlu acknowledges the support from the Swedish Research Council (VR), Antonio Segalini the support from STandUP for Wind, and Joseph Klewicki the support from the US National Science Foundation (NSF) and the Australian Research Council.