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本文将一元不稳定流动理论应用于中小型柴油机的排气压力波计算。用FORT-RAN语言编制的排气压力波计算程序,对115单缸增压柴油机进行了多方案的计算。计算结果获得的排气系统各结构参数对排气压力波形态及该机性能影响的规律,符合理论分析,证明了程序的可靠性。
In this paper, the unary unstable flow theory is applied to the calculation of exhaust pressure wave in small and medium-sized diesel engines. Using FORT-RAN language of the exhaust pressure wave calculation program, 115 single-cylinder turbocharged diesel engine made a multi-program calculation. The results obtained from the calculation of the structure parameters of the exhaust system on the morphology of the exhaust pressure wave and the performance of the aircraft, in line with the theoretical analysis, proved the reliability of the program.