To investigate the effects of the nozzle-exit conditions on jet flow and sound fields, large-
eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are …

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 …

Hybrid large-eddy type simulations for chevron nozzle jet flows are performed at Mach 0.9
and Re= 1.03× 106. Without using any subgrid scale model (SGS), the numerical approach …

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 …

The possibility of jet-installation noise reduction has been experimentally demonstrated
using a flat-plate fitted with flow permeable metal foam fitted at the trailing-edge. Tests were …

Three isothermal round jets at a Mach number of 0.9 and a diameter-based Reynolds
number of 105 are computed by large-eddy simulation using four different meshes in order …

The presence of tones in the acoustic far field of isothermal round jets for angles ϕ≥ 120°
relative to the flow direction is investigated for Mach numbers between M= 0.60 and 2 based …

Many configurations proposed for the next generation of aircraft rely on the wing or other
aircraft surfaces to shield the engine noise from the observers on the ground. However, the …

A wave-packet Ansatz is used to model jet noise generation by large-scale turbulence. In
this approach, an equivalent source is defined based on the two-point space-time …

This paper describes a method to connect the measured spectral density in the acoustic far
field with the wavenumber/frequency spectrum of the near field fluctuations that produce the …