kth_logo.gif

Article

Generalization of the diagnostic plot to higher-order moments in turbulent boundary layers

Authors: Örlü, R., Segalini, A. S., Klewicki, J. , Alfredsson, P.H.
Document Type: Conference
Pubstate: Published
Journal: Proc. of the Int. Conf. on Jets, Wakes and Separated Flows, ICJWSF-2015, June 15-18, 2015, KTH Stockholm, Sweden.
Volume: 185   333-228
Year: 2016

Abstract

The present work extends the diagnostic plot concept for the streamwise turbulence intensity in wall-bounded turbulent flows [Alfredsson and Örlü, Eur. J. Mech. B/Fluids 42, 403 (2010)], and generalizes it for higher-order (even and odd) moments, thereby providing a general description of the probability density distribution of streamwise velocity fluctuations. Turbulent boundary layer data up to a friction Reynolds number of 20000 are employed and demonstrate the feasibility of the diagnostic plot to scale data throughout the logarithmic and wake regions.

DOI: 10.1007/978-3-319-30602-5_42