Influence of nozzle-exit boundary-layer conditions on the flow and acoustic fields of initially laminar jets

C Bogey, C Bailly - Journal of Fluid Mechanics, 2010 - cambridge.org
Round jets originating from a pipe nozzle are computed by large-eddy simulations (LES) to
investigate the effects of the nozzle-exit conditions on the flow and sound fields of initially …

Influence of initial turbulence level on the flow and sound fields of a subsonic jet at a diameter-based Reynolds number of 105

C Bogey, O Marsden, C Bailly - Journal of Fluid Mechanics, 2012 - cambridge.org
Five isothermal round jets at Mach number and Reynolds number originating from a pipe
nozzle are computed by large-eddy simulations to investigate the effects of initial turbulence …

Large-eddy simulation of the flow and acoustic fields of a Reynolds number 105 subsonic jet with tripped exit boundary layers

C Bogey, O Marsden, C Bailly - Physics of Fluids, 2011 - pubs.aip.org
Large-eddy simulations (LESs) of isothermal round jets at a Mach number of 0.9 and a
diameter-based Reynolds number Re D of 10 5 originating from a pipe are performed using …

Establishing consensus turbulence statistics for hot subsonic jets

J Bridges, M Wernet - 16th AIAA/CEAS aeroacoustics conference, 2010 - arc.aiaa.org
Several articles in the open literature document previous efforts to measure turbulent jets.
Most were acquired in cold, low speed jets, often using hotwire anemometry, although some …

The NASA subsonic jet particle image velocimetry (PIV) dataset

J Bridges, MP Wernet - 2011 - ntrs.nasa.gov
Many tasks in fluids engineering require prediction of turbulence of jet flows. The present
document documents the single-point statistics of velocity, mean and variance, of cold and …

A study of noise reduction mechanisms of jets with fluid inserts

C Prasad, PJ Morris - Journal of Sound and Vibration, 2020 - Elsevier
The fluid insert technology is an active noise reduction technique that has been shown to
successfully reduce supersonic jet noise in model scale nozzles. The goal of this paper is to …

Effects of nozzle-exit boundary-layer profile on the initial shear-layer instability, flow field and noise of subsonic jets

C Bogey, R Sabatini - Journal of Fluid Mechanics, 2019 - cambridge.org
The influence of the nozzle-exit boundary-layer profile on high-subsonic jets is investigated
by performing compressible large-eddy simulations (LES) for three isothermal jets at a Mach …

Real-time reactive control of stochastic disturbances in forced turbulent jets

IA Maia, P Jordan, AVG Cavalieri, E Martini, K Sasaki… - Physical Review …, 2021 - APS
In this work we perform reactive control of stochastic disturbances in forced turbulent jets
based on destructive interference. The study is motivated by the success of recent studies in …

On the use of two-point velocity correlation in wall-pressure models for turbulent flow past a trailing edge under adverse pressure gradient

P Jaiswal, S Moreau, F Avallone, D Ragni… - Physics of …, 2020 - pubs.aip.org
Two-point velocity statistics near the trailing edge of a controlled diffusion airfoil are
obtained, both experimentally and analytically, by decomposing Poisson's equation for …

Coherence decay and its impact on sound radiation by wavepackets

AVG Cavalieri, A Agarwal - Journal of Fluid Mechanics, 2014 - cambridge.org
Wavepackets obtained by a linear stability analysis of the turbulent mean flow were shown
in recent works to agree closely with some relevant statistics of turbulent jets, such as power …