Controlling combustion instabilities by means of open-loop forcing at non-resonant
frequencies is attractive because neither a dynamic sensor signal nor a signal processor is …

Controlling combustion instabilities by means of open-loop forcing at non-resonant
frequencies is attractive because neither a dynamic sensor signal nor a signal processor is …

Instabilities associated with transverse acoustic modes are an important problem in gas
turbines. A number of studies have reported results on the response of flames to transverse …

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 …

One impediment to substantially further the reductions in NOx emissions for aviation gas
turbine engines is thermal-acoustic instabilities, also referred to as combustion dynamics …

Passive control of combustion instabilities is explored in the case of systems featuring a
collection of premixed flames. The method devised in this research differs from the general …

Using external off-resonance forcing synchronized with the self-excited oscillation system is
a primary method for the open-loop control of thermoacoustic instability. Current studies …

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 …

Triggering, frequency shifting, mode switching and hysteresis are commonly encountered
during self-sustained oscillations in combustors. These mechanisms cannot be anticipated …

A non-conventional method based on forced-flow combustion oscillations is investigated
regarding the improvement of combustion conditions at suboptimal operating conditions. In …