Thermoacoustic oscillations associated with transverse acoustic modes are routinely
encountered in combustion chambers. While a large literature on this topic exists for rockets …

Combustion instability remains a critical issue limiting the development of low-emission,
lean-premixed (LPM) gas turbine combustion systems. The present work provides a …

The spatio-temporal evolution of a turbulent swirling jet undergoing vortex breakdown has
been investigated. Experiments suggest the existence of a self-excited global mode having …

An experimental investigation of swirling jets Page 1 J. Fluid Mech. (2005), vol. 525, pp. 115–159.
c 2005 Cambridge University Press DOI: 10.1017/S0022112004002629 Printed in the …

An LDA technique and phase-averaging analysis were used to study unsteady precessing
flow in a model vortex burner. Detailed measurements were made for Re= 15,000 and S …

This work investigates the response of the vortex breakdown region of a swirling, annular jet
to transverse acoustic excitation for both non-reacting and reacting flows. This swirling flow …

In this paper, we study the shape and dynamics of helical coherent structures found in the
flow field of an annular swirling jet undergoing vortex breakdown. The flow field is studied by …

Low-order coherent structures of non-reacting and combusting low-and high-swirl (swirl
rates S= 0.41 and S= 1.0) jet flows in an open-ended cylindrical model combustor have …

VORTEX breakdown is a unique feature of swirling flows. It occurs when the ratio of axial to
azimuthal velocity exceeds a certain threshold while both quantities are of the same order of …

The present paper reports on high-speed tomographic particle image velocimetry
measurements of large-scale coherent structures in the near field of swirling turbulent jets …