A novel technique for controlling oscillating combustion is proposed and demonstrated. For
oscillations that exist over a limited range of equivalence ratios, we suggest that periodic …

Naturally occurring oscillations in ducted premixed flames have been controlled by imposed
oscillation of the fuel. The flames were stabilised behind a bluff-body and a step with …

THE desire to advance propulsion technology has led to efforts to control and optimize
various operating characteristics of combustion systems. Principal among these is the …

This paper describes a study of open loop control of combustion instability employing
harmonic fuel injection rate modulation at a non-resonant frequency. It's shown that this …

The nonlinear response of a swirl-stabilized flame to equivalence ratio oscillations was
experimentally investigated in an atmospheric-pressure, high-temperature, lean-premixed …

Combinations of small quantities of fuel and imposed oscillations are shown to ameliorate
combustion oscillations in ducted flows of premixed methane and air with equivalence ratios …

THIS note describes an investigation of the nonlinear interactions between natural acoustic
modes and forced oscillations in an unstable combustor. Such instabilities are a serious …

WHEN combustion takes place within an acoustic res-onator, the interaction between
acoustic waves and unsteady combustion may lead to oscillations of damaging intensity …

▪ Abstract Early work and recent advances in feedback control of combustion oscillations are
described. The physics of combustion oscillations, most commonly caused by a coupling …

Combustion oscillations are receiving renewed research interest due to increasing use of
lean premix (LPM) combustion to gas turbines. A simple, nonlinear model for premixed …