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

View Video Presentation: https://doi. org/10.2514/6.2021-0599. vid In this work, the
capabilities of the traditional focused-laser differential interferometry (FLDI) technique are …

Focused laser differential interferometry (FLDI) is used to measure a well-characterized, 17
kHz screech tone emitted from an underexpanded Mach 1.5 jet. Measurements are made at …

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 …

We present a two-point model to investigate the underlying source mechanisms for
broadband shock-associated noise (BBSAN) in shock-containing supersonic jets. In the …

Broadband shock-associated noise (BBSAN) is an important component of supersonic jet
noise for jets at off-design conditions when the pressure at the nozzle exit is different from …

A distance function between two random variables or vectors was proposed in 2003 in a Ph.
D. dissertation. Initially called a probability metric, it is now known as" Łukaszyk-Karmowski …

An experimental study concerning an underexpanded, screeching, Mach 1.5 jet operating at
a stagnation-to-ambient pressure ratio of 4.4 is presented. Experimental data were acquired …

View Video Presentation: https://doi. org/10.2514/6.2021-0600. vid In this paper, focused
laser differential interferometry (FLDI) is used to measure a well-characterized, 17 kHz …

A decomposition of the Navier-Stokes equations is used to identify the equivalent source
term for broadband shock-associated noise (BBSAN). An analytical closed-form model to …