The distributing of the velocity in the intake port and on the port exit and the distributing of the turbulence kinetic energy are get . the momentum moment flow rate is used to scale the swirl . some advices to improve on the port are put forward 使用ansys的后处理模块对计算结果进行处理,得到了气道内、气道出口的速度分布、紊流动能分布等结果,采用动量矩流率对涡流水平进行了评定,并对气道的改进提出了一定的建议。