Modal analysis of fluid flows: An overview

K Taira, SL Brunton, STM Dawson, CW Rowley… - Aiaa Journal, 2017 - arc.aiaa.org
SIMPLE aerodynamic configurations under even modest conditions can exhibit complex
flows with a wide range of temporal and spatial features. It has become common practice in …

Closed-loop turbulence control: Progress and challenges

SL Brunton, BR Noack - Applied Mechanics …, 2015 - asmedigitalcollection.asme.org
Closed-loop turbulence control is a critical enabler of aerodynamic drag reduction, lift
increase, mixing enhancement, and noise reduction. Current and future applications have …

Nonlinear mode decomposition with convolutional neural networks for fluid dynamics

T Murata, K Fukami, K Fukagata - Journal of Fluid Mechanics, 2020 - cambridge.org
We present a new nonlinear mode decomposition method to visualize decomposed flow
fields, named the mode decomposing convolutional neural network autoencoder (MD-CNN …

CNN-LSTM based reduced order modeling of two-dimensional unsteady flows around a circular cylinder at different Reynolds numbers

K Hasegawa, K Fukami, T Murata… - Fluid Dynamics …, 2020 - iopscience.iop.org
We investigate the capability of machine learning (ML) based reduced order model (ML-
ROM) for two-dimensional unsteady flows around a circular cylinder at different Reynolds …

Frequency–time analysis, low-rank reconstruction and denoising of turbulent flows using SPOD

A Nekkanti, OT Schmidt - Journal of Fluid Mechanics, 2021 - cambridge.org
Four different applications of spectral proper orthogonal decomposition (SPOD) are
demonstrated on large-eddy simulation data of a turbulent jet. These are: low-rank …

Dynamics and control of global instabilities in open-flows: a linearized approach

D Sipp, O Marquet, P Meliga, A Barbagallo - 2010 - asmedigitalcollection.asme.org
This review article addresses the dynamics and control of low-frequency unsteadiness, as
observed in some aerodynamic applications. It presents a coherent and rigorous linearized …

[BOOK][B] Compressibility, turbulence and high speed flow

TB Gatski, JP Bonnet - 2013 - books.google.com
Compressibility, Turbulence and High Speed Flow introduces the reader to the field of
compressible turbulence and compressible turbulent flows across a broad speed range …

Active control of flow-induced cavity oscillations

LN Cattafesta III, Q Song, DR Williams… - Progress in Aerospace …, 2008 - Elsevier
A review of active control of flow-induced cavity oscillations is motivated by two factors. First,
the search for solutions to the practical problem of suppressing oscillations caused by flow …

Closed-loop control of an open cavity flow using reduced-order models

A Barbagallo, D Sipp, PJ Schmid - Journal of Fluid Mechanics, 2009 - cambridge.org
The control of separated fluid flow by reduced-order models is studied using the two-
dimensional incompressible flow over an open square cavity at Reynolds numbers where …

Drag reduction of a car model by linear genetic programming control

R Li, BR Noack, L Cordier, J Borée, F Harambat - Experiments in Fluids, 2017 - Springer
We investigate open-and closed-loop active control for aerodynamic drag reduction of a car
model. Turbulent flow around a blunt-edged Ahmed body is examined at Re_ H ≈ 3 * 10^ 5 …