对应计算流体力学基础及应用中第8章中的例子，有助于读者学习普朗特迈耶流动中流场的分布，为深入学习计算流体力学打下坚实的基础(Corresponding to the basis of computational fluid dynamics and the examples in the eighth chapter, it will help readers to study the flow field distribution in the Prandtl flow, and lay a solid foundation for further study of computational fluid dynamics)