N-S方程的求解，基于PETSc工具包，在linux环境下开发的-NS solving equations, based on PETSc toolkit developed under linux environment

一维激波管matlab源程序，采用CFD数值模拟的方法，对N-S方程进行差分，获得流体解析解。-One-dimensional shock tube matlab source code, the use of CFD numerical simulation method, the NS differential equations, fluid obtained analytical solution.