The cfd analysis on the diesel engine ' s intake port is very important in the diesel engine design and produce . it will economize so much time and money which iiad been used in steady flow experiment . it shortens the time from design to experiment and to produce in the end very much 柴油机进气道的cfd分析对柴油机的设计和生产起着举足轻重的作用，它可以节约大量原本应用于稳流实验的资金和时间，大大缩短产品从设计到实验再到最后投入生产的周期。
