The performance of Pulse Detonation Engine(PDE) with aerovavle of diameter 180 mm、length 2.2 m was pre-estimated by using a method combining experiential data and computation
at the same time the total pressure loss inside the PDE was taken into account.The computational results basically match the results obtained from the experiments.It was found that the thrust of PDE was lower than that in ideal case and specific fuel consumption(SFC) was larger than that in ideal case
due to that the total pressure loss was considered.This computational method is valuable for pre-estimating the performance of PDE in actual operation.