安德森《计算流体力学及其应用》第七章拟一维喷管流动的数值解 7.3节 亚声速—超声速等熵喷管流动的CFD解法 。-Anderson the computational fluid mechanics and its application "chapter 7 quasi one-dimensional nozzle flow numerical solution of section 7.3 subsonic- supersonic isentropic nozzle flow of CFD