A new method for predicting the lean blow-out performance of the combustor was proposed by combining the FV model with the simulation of reacting flows. The data of lean blow-out experiment of 5 combustors (two of which are through-flow combustors and the rest are reverse-flow combustors) showed that

when the value of model constant K was 1.35 to through-flow combustors

and 0.55 to reverse-flow combustors

the maximum uncertainties of the prediction method were less than ±20%. And compared with the Lefebvre model

the method proposed is much more applicable and precise for combustors of various structures.