The paper presents the results of a study of active control of oscillations with a single
dominant frequency in premixed flames stabilised behind a disk and a rearward-facing step …

The flow of premixed reactants in a duct with flames stabilized on a sudden expansion and
an open downstream end gave rise to combustion oscillations of low frequency due to …

Early work on active control of combustion oscillations is reviewed. It is over ten years since
the tist full-scale demonstration of the feasibility of feedback control to eliminate combustion …

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 …

The present paper describes an active control system consisting of a fast-acting actuator
valve, coupled with a control algorithm capable of adaptive phase and amplitude control for …

A closed-loop control system was constructed to control the lift-off height of a premixed flame
at the lean flammability limit. Control authority was obtained by forcing the initial shear layer …

Closed-loop control tests wcrc jxrforrncd to supprcss the combustion instability of a dump
combustor and to extend its flammability limits. The pressure oscillations originating from the …

A dual-loop feedback control system was devised to suppress bimodal instabilities in a
dump combustor. Two types of instabilities were tested: one involving two anharmonic …

A closed-loop control system was constructed to control the lift-off height of a premixed flame
at the lean flammability limit. Control authority was obtained by forcing the initial shear layer …

Combustion oscillations are excited by a feedback mechanism which results from the
coupling between the flame instability and an acoustic resonance mode of the combustion …