We investigate the intermittency of the coupling behaviour in screeching twin round
supersonic jets at low Mach numbers across a range of nozzle spacings. Application of …

The present work focuses on the study of the resonance and coupling of an underexpanded
circular twin-jet system operating at a nozzle pressure ratio of. Particle image velocimetry …

View Video Presentation: https://doi. org/10.2514/6.2022-3345. vid The statistical analysis of
non-axisymmetric turbulent jets using spectral proper orthogonal decomposition (SPOD) is …

Spatial linear stability analysis is used to study the axisymmetric screech tones generated by
twin converging round nozzles at low supersonic Mach numbers. Vortex-sheet and finite …

Linear stability theory (LST) is often used to model the large-scale flow structures in the
turbulent mixing region and near pressure field of high-speed jets. For perfectly expanded …

The parabolized stability equations (PSE) are a ubiquitous tool for studying the stability and
evolution of disturbances in weakly nonparallel, convectively unstable flows. The PSE …

We construct reduced-order models of aeroacoustic sources for single and twin subsonic
jets (, at all angles investigated. At other frequencies, the closely spaced twin jet shows more …

Aeroacoustics of innovative aircraft cannot disregard the development of low-order models
for the jet noise source, which are essential to assess the propulsion–airframe interactions …

View Video Presentation: https://doi. org/10.2514/6.2021-2121. vid Twin-jet configurations,
composed of two jets placed in close proximity to each other, are a common feature of many …

We propose an approach to predict the modulation of wave packets in shock-containing jets.
With a modeled ideally expanded mean flow as input, an approximation of the shock-cell …