Turbulence in supersonic boundary layers at moderate Reynolds number

S Pirozzoli, M Bernardini - Journal of Fluid Mechanics, 2011 - cambridge.org
We study the organization of turbulence in supersonic boundary layers through large-scale
direct numerical simulations (DNS) at, and momentum-thickness Reynolds number up to …

Simulation and validation of a spatially evolving turbulent boundary layer up to Reθ= 8300

G Eitel-Amor, R Örlü, P Schlatter - International Journal of Heat and Fluid …, 2014 - Elsevier
Results of a finely resolved large-eddy simulation (LES) of a spatially developing zero-
pressure-gradient turbulent boundary layer up to a Reynolds number of Re θ= 8300 are …

Amplitude and frequency modulation in wall turbulence

B Ganapathisubramani, N Hutchins… - Journal of Fluid …, 2012 - cambridge.org
In this study we examine the impact of the strength of the large-scale motions on the
amplitude and frequency of the small scales in high-Reynolds-number turbulent boundary …

On coherent structure in wall turbulence

AS Sharma, BJ McKeon - Journal of Fluid Mechanics, 2013 - cambridge.org
A new theory of coherent structure in wall turbulence is presented. The theory is the first to
predict packets of hairpin vortices and other structure in turbulence, and their dynamics …

Amplitude modulation of all three velocity components in turbulent boundary layers

KM Talluru, R Baidya, N Hutchins… - Journal of Fluid …, 2014 - cambridge.org
A combination of cross-wire probes with an array of flush-mounted skin-friction sensors are
used to study the three-dimensional conditional organisation of large-scale structures in a …

Direct numerical simulation of turbulent open channel flows at moderately high Reynolds numbers

J Yao, X Chen, F Hussain - Journal of Fluid Mechanics, 2022 - cambridge.org
Well-resolved direct numerical simulations of turbulent open channel flows (OCFs) are
performed for friction Reynolds numbers up to. In summary, the free surface in OCFs plays …

Estimating wall-shear-stress fluctuations given an outer region input

R Mathis, I Marusic, SI Chernyshenko… - Journal of Fluid …, 2013 - cambridge.org
A model for the instantaneous wall-shear-stress distribution is presented for zero-pressure-
gradient turbulent boundary layers. The model, based on empirical and theoretical …

Wavelet analysis of wall turbulence to study large-scale modulation of small scales

WJ Baars, KM Talluru, N Hutchins, I Marusic - Experiments in fluids, 2015 - Springer
Wavelet analysis is employed to examine amplitude and frequency modulations in
broadband signals. Of particular interest are the streamwise velocity fluctuations …

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 …

On the fluctuating wall-shear stress in zero pressure-gradient turbulent boundary layer flows

R Örlü, P Schlatter - Physics of fluids, 2011 - pubs.aip.org
Recent direct numerical simulation (DNS) results relating to the behavior of the fluctuating
wall-shear stress τ w, rm s+ in turbulent boundary layer flows are discussed. This new …