Data-driven aerospace engineering: reframing the industry with machine learning
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 …
industrial landscapes. The aerospace industry is poised to capitalize on big data and …
Aeroacoustic resonance and self-excitation in screeching and im**ing supersonic jets–a review
D Edgington-Mitchell - International Journal of Aeroacoustics, 2019 - journals.sagepub.com
Supersonic jets, particularly shock-containing jets, often exhibit high-intensity, discrete-
frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop …
frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop …
Spectral analysis of jet turbulence
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 …
examine the structure of turbulence in jets in the subsonic, transonic and supersonic …
Importance of the nozzle-exit boundary-layer state in subsonic turbulent jets
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 …
eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are …
Unstructured large-eddy simulations of supersonic jets
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 …
simulation flow solver “Charles” is summarized and put to practice for the predictions of …
Upstream-travelling acoustic jet modes as a closure mechanism for screech
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 …
jets screeching in the A1 and A2 modes are not free-stream acoustic waves, but rather …
Acoustic resonance in the potential core of subsonic jets
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 …
potential core of subsonic jets and relate them to previously observed tones in the near …
From bypass transition to flow control and data-driven turbulence modeling: an input–output viewpoint
MR Jovanović - Annual Review of Fluid Mechanics, 2021 - annualreviews.org
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 …
properties of fluid flows. In particular, resolvent analysis can be interpreted as a special case …
Wave-packet models for jet dynamics and sound radiation
Organized structures in turbulent jets can be modeled as wavepackets. These are
characterized by spatial amplification and decay, both of which are related to stability …
characterized by spatial amplification and decay, both of which are related to stability …
Wavepackets and trapped acoustic modes in a turbulent jet: coherent structure eduction and global stability
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 …
fidelity large eddy simulation. Besides the well-known Kelvin–Helmholtz instabilities of the …