船用柴油机排气系统压力波的理论分析

Analysis of the pressure waves in the exhaust systems of the DY8300ZC1 diesel engine

在ＤＹ８３００ＺＣ１型脉冲转换增压柴油机上，对排气系统中的非定常流过程，应用特征线法计算排气压力波．把缸内和排气管中压力变化的计算结果与实测值相比较，发现两者相当符合。可以为进一步研究该种柴油机所采用．

Based on a type DY8300ZC1 multicylinder pulse converter turbocharged diesel engine, the characteristics method is used to calculate the pressure waves in the unsteady flow in the exhaust systems of this type of engine. The comparison between the calculated pressure waves by using tills model and the measured waves from the type of engine shows that the agreement isquite satisfactory. It may be used to do further research in this type of engine.