本题利用一维欧拉方程求解可压缩一维无粘管道流动，并针对出口不同的条件，出口亚音速和出口超音速两种不同条件，将流道进行网格划分，利用MacCormack进行差分求解，得到管道内的总压、马赫数、总焓、内能的分布，并给出计算过程中残差收敛的过程。(A one-dimensional Euler equation is used to solve the compressible one-dimensional viscous pipe flow, and the flow channel is meshed in two different conditions, the outlet subsonic speed and the exportation supersonic speed are divided. The distribution of the total pressure, the Maher number, the total enthalpy and the internal energy in the pipeline is obtained by using the MacCormack to obtain the distribution of the total pressure, the total enthalpy and the internal energy. The process of the convergence of the residuals in the calculation process.)