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10:30
15 mins
Generalized diagnostic scaling for high-order moments in turbulent boundary layers
Ramis Orlu, Antonio Segalini, Joseph Klewicki, P. Henrik Alfredsson
Session: Wall-bounded flows 4
Session starts: Thursday 27 August, 10:30
Presentation starts: 10:30
Room: Room B
Ramis Orlu (Linné FLOW Centre, KTH Mechanics, Stockholm, Sweden)
Antonio Segalini (Linné FLOW Centre, KTH Mechanics, Stockholm, Sweden)
Joseph Klewicki (Dept. Mech. Eng., University of New Hampshire, Durham, NH 03824, USA & Dept. Mech. Eng., University of Melbourne, Parkville, VIC 3010, Australia)
P. Henrik Alfredsson (Linné FLOW Centre, KTH Mechanics, Stockholm, Sweden)
Abstract:
The present work builds upon the diagnostic plot for the streamwise turbulence intensity [Alfredsson & Örlü, 2010] and generalises it for higher-order (even and odd) moments providing a general description of the probability density distribution of streamwise velocity fluctuations. Turbulent boundary layers (up to a friction Reynolds number of 20'000) are employed and demonstrate its feasibility to scale data throughout the overlap and outer region.