2. ACOUSTIC DAMPING MECHANISMS OF HALF-WAVE RESONATORS IN A ROCKET ENGINE ENVIRONMENT
Combustion instabilities in rocket engines are caused by coupling between the combustion processes and pressure oscillations in a combustor, and they are characterized by the frequencies and shapes of the acoustic modes of the combustion chamber. Acoustic resonators are commonly installed in combustors to provide passive acoustic damping and prevent combustion instabilities. Previously, it has been proposed that the propellant injectors in a combustor can be tuned to act as...