Described are sub-scale tests that successfully demonstrate active feedback control as a
means of suppressing damaging combustion oscillations in natural-gas-fueled, lean-premix …

This paper presents the results of an investigation of active control of combustion instabilities
in a natural gas, high-pressure, full-scale gas turbine combustor that was retrofitted with an …

This paper describes the application of active, open loop, control in effective damping of
severe (ie, peak to peak pressure amplitudes of up to 35 psi relative to a mean combustor …

This paper describes results from an experimental demonstration of combustion instability
suppression using a closed-loop control system. Experiments were performed on a 15 kW …

During the prototype shop tests, the Model V84. 3A ring combustor gas turbine unexpectedly
exhibited a noticeable “humming” caused by self-excited flame vibrations in the combustion …

Combustion dynamics is a prominent problem in the design and operation of low-emission
gas turbine engines. Even modest changes in fuel composition or operating conditions can …

A number of recent articles have demonstrated the use of active control to mitigate the
effects of combustion instability in afterburner and dump combustor applications. In these …

THIS special issue of the Journal of Propulsion and Power has highlightedtheproblemofachievingstableco…
low-emission gas turbines. As noted in the introduction of this issue, this problem has …

During the prototype shop tests, the Model V84. 3A ring combustor gas turbine unexpectedly
exhibited a noticeable “humming” caused by self-excited flame vibrations in the combustion …