Modelling the noise emitted by turbulent jets is made difficult by their acoustic inefficiency:
only a tiny fraction of the near-field turbulent kinetic energy is propagated to the far field as …

WHEREAS the study of generation of noise from turbulent jets has received widespread
attention owing to its practical relevance in commercial aircraft applications (eg, see Tam1) …

Noise sources are investigated in subsonic jets at Mach numbers M= 0.6 and M= 0.9, with
Reynolds numbers ReD= 1700 and ReD≥ 105, using data provided by Large Eddy …

An acoustic analogy is developed to predict the noise from jet flows. It contains two source
models that independently predict the noise from turbulence and shock wave shear layer …

This Part I presents a detailed description of a numerical system built and tested with the
final goal of reaching an accuracy of 2–3 dB over a meaningful range of frequencies for …

A systematic study has been undertaken to quantify the effect of jet temperature on the noise
radiated by subsonic jets. Nozzles of different diameters were tested to uncover the effects of …

The analysis of noise generation from turbulence in a jet is a story of two different
complexities. In the turbulent flow region, the fluctuations satisfy the full non-linear Navier …

This paper provides an assessment from an experimental point of view of the present
understanding of high speed jet noise primarily as it pertains to shock containing supersonic …

On behalf of CNES, ONERA studied the noise of high supersonic hot jets, in order to
anticipate the acoustic loads of ARIANE 5 launcher at lift-off. The free jet acoustic model …

The Large-Eddy Simulation (LES) system established over the last six years is reviewed in
terms of its progress in accuracy and transition physics, and is then used to explore the …