纵向耦合振动(POGO)是一种常见的工程问题，其数学模型有经典水锤模型、四方程模型和八方程模型等。与此同时，有限体积法（FVM）物理意义明确，守恒性好，控制方程组的离散和数值求解简单，可以很好地应用于POGO问题分析中。附件包含了上述三种模型和不同初值、耦合条件下的m文件，以供参考！-POGO is a common engineering problems, the mathematical models consist of the classic water hammer model, four-equation model, and the eight-equation model. At the same time, the physical meaning and conservation of the finite volume method (FVM) is clear, as well as control of discrete equations and numerical solution of simple problems can be well applied POGO analysis. The annex contains m files under the three models and different initial values​ ​ , coupling conditions, for reference!