本文采用混合长度模型及共轭计算的方法对中心进气转静系旋转盘、腔内的流动与换热进行了数值计算 ,并与实验结果进行了比较 ,证明混合长度模型对转静系旋转盘、腔的流动与换热的计算是可行的。计算结果显示 :冲击区努赛尔特数最大值不在驻点 ,而是偏离驻点一段距离 ;随着转速和冷气流量的增加 ,盘面换热总体加强。 In this paper, the mixed length model and the conjugate calculation method are used to calculate the flow and heat transfer in the rotating disk and the cavity of the central inlet, and the results are compared with the experimental results. Disk, cavity flow and heat transfer calculation is feasible. The calculation results show that the maximum Nusselt number of the impact zone is not at the stagnation point, but a distance away from the stagnation point. With the increase of the rotation speed and the cooling air flow, the heat exchange of the heat exchange disc surface is generally strengthened.