in this paper we had given the concept of flapping nozzle by using shape memory alloy

安德森计算流体力学源代码（第7章管道流动nozzle）-Anderson to CFD the source code (Chapter 7 pipeline flow nozzle)

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 -CFD solution supersonic isentropic nozzle flow- Anderson " Computational Fluid Dynamics and Its Applications," Chapter VII of the quasi one-dimensional nozzle flow numerical solution of

计算流体力学基础及其应用第七章超声速喷管流动数值解的matlab代码，代码全是自己编写。-Foundation and Chapter 7 Numerical Solution of supersonic nozzle flow hydrodynamic calculation matlab code, the code is all I have written.