Data science, and machine learning in particular, is rapidly transforming the scientific and
industrial landscapes. The aerospace industry is poised to capitalize on big data and …

Supersonic jets, particularly shock-containing jets, often exhibit high-intensity, discrete-
frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop …

Informed by large-eddy simulation (LES) data and resolvent analysis of the mean flow, we
examine the structure of turbulence in jets in the subsonic, transonic and supersonic …

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 …

Experience gained from previous jet noise studies with the unstructured large-eddy
simulation flow solver “Charles” is summarized and put to practice for the predictions of …

The purpose of this paper is to characterize and model waves that are observed within the
potential core of subsonic jets and relate them to previously observed tones in the near …

Experimental evidence is provided to demonstrate that the upstream-travelling waves in two
jets screeching in the A1 and A2 modes are not free-stream acoustic waves, but rather …

Coherent features of a turbulent Mach 0.9, Reynolds number jet are educed from a high-
fidelity large eddy simulation. Besides the well-known Kelvin–Helmholtz instabilities of the …

Transient growth and resolvent analyses are routinely used to assess nonasymptotic
properties of fluid flows. In particular, resolvent analysis can be interpreted as a special case …

We study the velocity fields of unforced, high Reynolds number, subsonic jets, issuing from
round nozzles with turbulent boundary layers. The objective of the study is to educe …