Recent advances in feature extraction techniques for high-speed flowfields

S Unnikrishnan - Progress in Aerospace Sciences, 2023 - Elsevier
Abstract Space–time scale-resolved diagnostic and computational campaigns routinely
produce high-fidelity multi-disciplinary truth-model quality datasets for complex …

Excitation of free shear-layer instabilities for high-speed flow control

M Samimy, N Webb, M Crawley - AIAA journal, 2018 - arc.aiaa.org
Free shear layers are building blocks of many flows of interest in applications, including jets,
cavity flows, and separated flows. It was found several decades ago that free shear layers …

A pressure decomposition framework for aeroacoustic analysis of turbulent jets

S Unnikrishnan, DV Gaitonde - European Journal of Mechanics-B/Fluids, 2020 - Elsevier
Aeroacoustic analyses of jet flows have benefited greatly from a decomposition of turbulent
pressure fluctuations into hydrodynamic and acoustic components. This is typically …

Vortex dynamics and sound emission in excited high-speed jets

M Crawley, L Gefen, CW Kuo, M Samimy… - Journal of Fluid …, 2018 - cambridge.org
This work aims to study the dynamics of and noise generated by large-scale structures in a
Mach 0.9 turbulent jet of Reynolds number using plasma-based excitation of shear layer …

Near-field pressure waveform analysis of an excited Mach 0.9 jet

CW Kuo, M Crawley, J Cluts… - International Journal of …, 2018 - journals.sagepub.com
This work explores the effects of axisymmetric, helical, and flapping mode perturbations over
a range of Strouhal numbers on the near-field pressure of an axisymmetric Mach 0.9 jet with …

[图书][B] Understanding the aeroacoustic radiation sources and mechanisms in high-speed jets

M Crawley - 2015 - search.proquest.com
It has been well-known within the aeroacoustic community that the dominant noise sources
in high-speed turbulent jets are related to the large-scale structures which are generated in …

[PDF][PDF] Towards Development of an Empirical Model for Prediction of Screech and Coupling in Supersonic Rectangular Twin Jets

S Yoder - 2022 - kb.osu.edu
Rectangular twin jet engines used on tactical aircraft have several advantages compared to
circular twin jet engines, namely, reducing an aircraft's weight and drag, improving its …