History effects and near equilibrium in adverse-pressure-gradient turbulent boundary layers

A Bobke, R Vinuesa, R Örlü, P Schlatter - Journal of Fluid Mechanics, 2017 - cambridge.org
Turbulent boundary layers under adverse pressure gradients are studied using well-
resolved large-eddy simulations (LES) with the goal of assessing the influence of the …

Model-based scaling of the streamwise energy density in high-Reynolds-number turbulent channels

R Moarref, AS Sharma, JA Tropp… - Journal of Fluid …, 2013 - cambridge.org
We study the Reynolds-number scaling and the geometric self-similarity of a gain-based,
low-rank approximation to turbulent channel flows, determined by the resolvent formulation …

On determining characteristic length scales in pressure-gradient turbulent boundary layers

R Vinuesa, A Bobke, R Örlü, P Schlatter - Physics of fluids, 2016 - pubs.aip.org
In the present work, we analyze three commonly used methods to determine the edge of
pressure gradient turbulent boundary layers: two based on composite profiles, the one by …

Turbulence statistics in Couette flow at high Reynolds number

S Pirozzoli, M Bernardini, P Orlandi - Journal of Fluid Mechanics, 2014 - cambridge.org
We investigate the behaviour of the canonical turbulent Couette flow at computationally high
Reynolds number through a series of large-scale direct numerical simulations. We achieve a …

Reynolds stress scaling in pipe flow turbulence—first results from CICLoPE

R Örlü, T Fiorini, A Segalini… - … of the Royal …, 2017 - royalsocietypublishing.org
This paper reports the first turbulence measurements performed in the Long Pipe Facility at
the Center for International Cooperation in Long Pipe Experiments (CICLoPE). In particular …

Direct numerical simulation of flow over dissimilar, randomly distributed roughness elements: A systematic study on the effect of surface morphology on turbulence

P Forooghi, A Stroh, P Schlatter, B Frohnapfel - Physical Review Fluids, 2018 - APS
Direct numerical simulations are used to investigate turbulent flow in rough channels, in
which topographical parameters of the rough wall are systematically varied at a fixed friction …

Quantifying wall turbulence via a symmetry approach. Part 2. Reynolds stresses

X Chen, F Hussain, ZS She - Journal of Fluid Mechanics, 2018 - cambridge.org
We present new scaling expressions, including high-Reynolds-number ($ Re $) predictions,
for all Reynolds stress components in the entire flow domain of turbulent channel and pipe …

On the identification of well-behaved turbulent boundary layers

CS Vila, R Vinuesa, S Discetti, A Ianiro… - Journal of Fluid …, 2017 - cambridge.org
This paper introduces a new method based on the diagnostic plot (Alfredsson et al., Phys.
Fluids, vol. 23, 2011, 041702) to assess the convergence towards a well-behaved zero …

Inverse interscale transport of the Reynolds shear stress in plane Couette turbulence

T Kawata, PH Alfredsson - Physical review letters, 2018 - APS
Interscale interaction between small-scale structures near the wall and large-scale
structures away from the wall plays an increasingly important role with increasing Reynolds …

Experimental observations on turbulent boundary layers subjected to a step change in surface roughness

M Gul, B Ganapathisubramani - Journal of Fluid Mechanics, 2022 - cambridge.org
Based on experimental data acquired with particle image velocimetry, we examine turbulent
boundary layers that are subjected to an abrupt change in wall roughness in the streamwise …