A Method of Prediction of the Pressure Amplitude of the Acoustic Combustion Oscillation

Abstract

The change in heat release rate at the flame zone was assumed to be presented by polynomials of the velocity and the pressure fluctuations. Then the equilibrium condition between the thermodriving and the damping energy of the oscillation was applied to determine the stability of the system. For the case of a single flame, solutions of the combustion oscillation were obtained and the condition for the suppression of the combustion oscillation was identified.