加力燃烧室一体化稳定器燃烧效率预测模型研究

In order to quickly obtain the combustion efficiency of different downstream positions of the integrated stabilizer under different conditions in the integrated afterburner length design stage, a prediction model of the combustion efficiency downstream the integrated flameholder in the afterburner was proposed and verified based on the combination of numerical simulation and theoretical analysis，under the conditions of 600—1 250 K incoming flow temperature， 75—170 m/s incoming flow velocity and 0.08—0.16 equivalent ratio， taking U-shaped integrated flameholder as the research object. At the same time， the empirical prediction formula of turbulent pulsation velocity for an integrated afterburner was determined. It was found that the predicted error of the model was less than 4% in the non-fuel spontaneous combustion condition and less than 12% in the fuel spontaneous combustion condition.