The occurrence of self–sustained synchronized oscillations in a family of hot axisymmetric
jets is investigated in direct numerical simulations. With parameter settings close to those …

The objective of this thesis is twofold: firstly, to study the dynamics inherent in the near field
of axisymmetric hot jets by direct numerical simulation, and describe the synchronized …

An axisymmetric hot-air jet discharging into cold ambient air is investigated experimentally.
We consider the transitional regime, that is, Reynolds numbers at which the jet is initially …

19th AIAA/CEAS Aeroacoustics Conference : Global response to forcing in a subsonic jet:
instability wavepackets and acoustic rad Page 1 Global response to forcing in a subsonic jet …

The current study explores the different types of behaviors that occur when a jet interacts
with an oscillating transverse flow. The oscillating transverse flow is established through an …

The linear stability theory is used to study the acoustic radiation of slowly diverging
axisymmetric jets in the Mach number range of ½. ¼ to ¾. in the presence of controlled …

A nonlinear interaction model is used to study sources of sound in jets. The model uses
quadratic interactions of instability modes, which are obtained by solving the linear …

Since the experiments of Monkewitz et al.(J. Fluid Mech. vol. 213, 1990, p. 611), sufficiently
hot circular jets have been known to give rise to self-sustained synchronized oscillations …

Resonant acoustic flows occur in a wide variety of practical, aerospace-related applications
and are a rich source of complex flow-physics. The primary concern associated with these …

Global-mode analysis is applied to a cold, M= 2.5 laminar jet. Global modes of the non-
parallel jet capture directly both near-field dynamics and far-field acoustics which, in this …