采用Ｓｐｅｚｉａｌｅ的非线性ｋ－ε模型和标准的ｋ－ε的模型计算了狭缝冲击射流，给出了径向平均速度和脉动速度沿壁面法向的分布，并同实验结果作了对比．结果表明，当其他条件都相同时，线性和非线性模型在冲击射流的计算中相差不大，今后的改进应当在近壁区或对紊流模型本身进行 The impact jet of slot was calculated by Speziale nonlinear k-ε model and standard k-ε model. The distribution of radial average velocity and pulsation velocity in the normal direction of the wall was given and compared with the experimental results. The results show that when the other conditions are the same, the linear and nonlinear models have little difference in the calculation of impinging jets. Future improvements should be made in the near wall or in the turbulence model itself