A review of Backward-Facing Step (BFS) flow mechanisms, heat transfer and control

L Chen, K Asai, T Nonomura, G **, T Liu - Thermal Science and …, 2018 - Elsevier
Abstract Backward-Facing Step (BFS) flow is one representative model for separation flows,
which can be widely seen in aerodynamic flows (airfoil, spoiler, high attack angle process) …

Recent developments in the prediction and control of aerodynamic noise from high-speed trains

DJ Thompson, E Latorre Iglesias, X Liu… - International Journal of …, 2015 - Taylor & Francis
At speeds above 300–350 km/h, the main source of noise from trains is the aerodynamic
noise caused by the air flow over the train structure. The sound level increases with train …

[書籍][B] Machine learning control-taming nonlinear dynamics and turbulence

T Duriez, SL Brunton, BR Noack - 2017 - Springer
This book is an introduction to machine learning control (MLC), a surprisingly simple model-
free methodology to tame complex nonlinear systems. These systems are assumed to be …

Conditions for validity of mean flow stability analysis

S Beneddine, D Sipp, A Arnault, J Dandois… - Journal of Fluid …, 2016 - cambridge.org
This article provides theoretical conditions for the use and meaning of a stability analysis
around a mean flow. As such, it may be considered as an extension of the works by McKeon …

Closed-loop separation control using machine learning

N Gautier, JL Aider, T Duriez, BR Noack… - Journal of Fluid …, 2015 - cambridge.org
We present the first closed-loop separation control experiment using a novel, model-free
strategy based on genetic programming, which we call 'machine learning control'. The goal …

Blood flow and coherent vortices in the normal and aneurysmatic aortas: a fluid dynamical approach to intra-luminal thrombus formation

J Biasetti, F Hussain, TC Gasser - Journal of The Royal …, 2011 - royalsocietypublishing.org
Abdominal aortic aneurysms (AAAs) are frequently characterized by the development of an
intra-luminal thrombus (ILT), which is known to have multiple biochemical and …

Numerical simulation of active separation control by a synthetic jet

J Dandois, E Garnier, P Sagaut - Journal of Fluid Mechanics, 2007 - cambridge.org
Direct numerical simulation (DNS) and large-eddy simulation (LES) are carried out to
investigate the frequency effect of zero-net-mass-flux forcing (synthetic jet) on a generic …

Unsteadiness of an axisymmetric separating-reattaching flow: Numerical investigation

S Deck, P Thorigny - Physics of fluids, 2007 - pubs.aip.org
The separated flow over a cylinder elongated by another cylinder of a smaller diameter is
investigated numerically at the high subsonic regime using zonal detached eddy simulation …

High Reynolds number flow over a backward-facing step: structure of the mean separation bubble

PM Nadge, RN Govardhan - Experiments in fluids, 2014 - Springer
In the present paper, the structure of the mean separation bubble downstream of the
backward-facing step is studied at large Reynolds numbers. The flow over the step at these …

On the unsteady characteristics of turbulent separations over a forward–backward-facing step

X Fang, MF Tachie - Journal of Fluid Mechanics, 2019 - cambridge.org
Turbulent separation bubbles over and behind a two-dimensional forward–backward-facing
step submerged in a deep turbulent boundary layer are investigated using a time-resolved …