The mechanisms responsible for driving and damping of pressure oscillations in a
laboratory combustor have been investigated. The chamber contains a turbulent …

Based on spatial and temporal averaging of the conservation equations, an approximate
analysis provides a convenient vehicle for analyzing the nonlinear behavior of unsteady …

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 paper describes an experimental investigation of the response of the flame in a lean,
premixed combustor to imposed acoustic oscillations. It presents further analysis and …

The spectra of pressure oscillations in combustion chambers often contain large peaks at
frequencies corresponding to chamber acoustic modes. Pulsed combustors are designed to …

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 …

This paper describes an experimental study of the response of a premixed combustion
process to imposed pressure oscillations. These data were obtained to improve current …

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

COMBUSTION instabilities have plagued the develop-ment of propulsion systems for many
years. While conventional instability-suppression devices have reached their design limits in …

▪ 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 …