The finite element method is one of the efficient numerical methods to solve partial different equations (PDEs).
有限元法是解偏微分方程的有效方法之一。
Meanwhile, the analytical solution of FADE only can be obtained under specific conditions, i. e. steady state flow with step input. Using the numerical methods to solve FADE is the best choice.
同时由于只有在特定的求解条件下，才能获得FADE的解析解，因此利用数值方法来求解FADE是一个重要的研究方向。
Also this paper presents the structure of mathematical vessel-model and the existence and uniqueness of the solution and introduces a set of numerical methods to solve the smoothed-spline Surface.
探索和研究了数学船型构造及解的存在、唯一性，且建立了一套求光顺样条曲面的数值方法。
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