Instantaneous wall-shear-stress measurements: advances and application to near-wall extreme events

R Örlü, R Vinuesa - Measurement Science and Technology, 2020 - iopscience.iop.org
In this article we provide an overview of widely used methods to measure the mean and
fluctuating components of the wall-shear stress in wall-bounded turbulent flows. We first note …

Direct numerical simulation of turbulent pipe flow at moderately high Reynolds numbers

GK El Khoury, P Schlatter, A Noorani… - Flow, turbulence and …, 2013 - Springer
Fully resolved direct numerical simulations (DNSs) have been performed with a high-order
spectral element method to study the flow of an incompressible viscous fluid in a smooth …

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 …

Wall shear stress and wall heat flux in a supersonic turbulent boundary layer

F Tong, S Dong, J Lai, X Yuan, X Li - physics of fluids, 2022 - pubs.aip.org
We report the characteristics of wall shear stress (WSS) and wall heat flux (WHF) from direct
numerical simulation (DNS) of a spatially developing zero-pressure-gradient supersonic …

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 …

[HTML][HTML] High-fidelity simulations in complex geometries: Towards better flow understanding and development of turbulence models

R Vinuesa - Results in Engineering, 2021 - Elsevier
The present review shows a summary of current trends in high-fidelity simulations of
turbulent flows in moderately complex geometries. These trends are put in the historical …

DNS of passive scalars in turbulent pipe flow

S Pirozzoli, J Romero, M Fatica, R Verzicco… - Journal of Fluid …, 2022 - cambridge.org
DNS of passive scalars in turbulent pipe flow Page 1 J. Fluid Mech. (2022), vol. 940, A45,
doi:10.1017/jfm.2022.265 DNS of passive scalars in turbulent pipe flow Sergio Pirozzoli1,† …

Wall shear stress fixed points in cardiovascular fluid mechanics

A Arzani, SC Shadden - Journal of biomechanics, 2018 - Elsevier
Complex blood flow in large arteries creates rich wall shear stress (WSS) vectorial features.
WSS acts as a link between blood flow dynamics and the biology of various cardiovascular …

Secondary flow in turbulent ducts with increasing aspect ratio

R Vinuesa, P Schlatter, HM Nagib - Physical Review Fluids, 2018 - APS
Direct numerical simulations of turbulent duct flows with aspect ratios 1, 3, 5, 7, 10, and 14.4
at a center-plane friction Reynolds number Re τ, c≃ 180, and aspect ratios 1 and 3 at Re τ …

Wall shear stress fluctuations: Mixed scaling and their effects on velocity fluctuations in a turbulent boundary layer

C Diaz-Daniel, S Laizet, JC Vassilicos - Physics of Fluids, 2017 - pubs.aip.org
The present work investigates numerically the statistics of the wall shear stress fluctuations
in a turbulent boundary layer (TBL) and their relation to the velocity fluctuations outside of …