Experimental study of turbulent-jet wave packets and their acoustic efficiency

DES Breakey, P Jordan, AVG Cavalieri, PA Nogueira… - Physical Review …, 2017 - APS
This paper details the statistical and time-resolved analysis of the relationship between the
near-field pressure fluctuations of unforced, subsonic free jets (0.4≤ M≤ 0.6) and their far …

Representing rectangular jet dynamics through azimuthal fourier modes

S Chakrabarti, D Gaitonde, S Unnikrishnan - Physical Review Fluids, 2021 - APS
Rectangular propulsion nozzles offer thrust-vectoring and air-frame-integration advantages
over their more commonly studied circular counterparts. However, they display many …

Two-point coherence of wave packets in turbulent jets

V Jaunet, P Jordan, AVG Cavalieri - Physical Review Fluids, 2017 - APS
An experiment has been performed in order to provide support for wave-packet jet-noise
modeling efforts. Recent work has shown that the nonlinear effects responsible for the two …

Qualitative dynamics of wave packets in turbulent jets

O Semeraro, F Lusseyran, L Pastur, P Jordan - Physical Review Fluids, 2017 - APS
We analyze the temporal dynamics associated with axisymmetric coherent structures in a
turbulent jet. It has long been established that turbulent jets comprise large-scale coherent …

Sound source characteristics generated by shocklets in isotropic compressible turbulence

D Terakado, T Nonomura, S Kawai, H Aono, M Sato… - Physical Review …, 2022 - APS
This study analyzes the effects of shocklets on sound source characteristics using direct
numerical simulations. The sound sources are obtained from the source terms of the Lighthill …