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利用差分方法对一类输运问题在一维和二维空间中进行数值分析，得到相应数值解，并将数值解与解析解进行比较，且进一步分析了数值方法的有效性．“,”In order to improve the accuracy of water hammer equations, it is in this paper the cubic spline wavelet finite element method to solve the water hammer equation. This method meets the requirements of complex pipeline, but also with the characteristics of the cubic spline wavelet function to improve the accuracy, opened a new way and theoretical basis for the solution of the water hammer equations.