99 citations · 196 across the 7 of their papers we have counts for
7 papers
On the preferred flapping motion of round twin jets
Daniel Rodriguez, Michael N. Stavropoulos, Petronio A. S. Nogueira +2
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-expand…
Wavepacket modulation in shock-containing jets
Petrônio A. S. Nogueira, Hamish W. A. Self, Aaron Towne +1
We propose a new approach to predict the modulation of wavepackets in shock-containing jets. With a modelled ideally expanded mean flow as input, an approximation of the shock-cell…
Closure mechanism of the A1 and A2 modes in jet screech
Petrônio A. S. Nogueira, Vincent Jaunet, Matteo Mancinelli +2
This paper explores the screech closure mechanism for different axisymmetric modes in shock-containing jets. While many of the discontinuities in tonal frequency exhibited by scree…
Absolute instability in shock-containing jets
Petrônio A. S. Nogueira, Peter Jordan, Vincent Jaunet +3
We present an analysis of the linear stability characteristics of shock-containing jets. The flow is linearised around a spatially periodic mean, which acts as a surrogate for a me…
Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
Marcus H. Wong, Peter Jordan, Igor A. Maia +4
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 model presente…
Waves in screeching jets
Daniel Edgington-Mitchell, Tianye Wang, Petronio Nogueira +5
The interaction between various wavelike structures in screeching jets is considered via both experimental measurements and linear stability theory. Velocity snapshots of screechin…
Dynamic Evolution of a Transient Supersonic Trailing Jet Induced by a Strong Incident Shock Wave
Mohammad Rezay Haghdoost, Daniel Edgington-Mitchell, Maikel Nadolski +2
The dynamic evolution of a highly underexpanded transient supersonic jet at the exit of a pulse detonation engine is investigated via high-resolution time-resolved schlieren and nu…