方程离散化的办法很多，通常使用以下几种5: 2 有限差分法（Finite difference method FDM）这是求解偏微分方程数值解的最古老方法，对简单几何形状中的流动与传热也是容易实施的方法。
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A general formula is derived for a finite-difference method (FDM) with non-uniform grids in a cylindrical coordinate system, and a perfectly matched layer (PML) is used for the boundary treatment.
在均匀格点的基础上，给出了基于柱坐标的全矢量非均匀格点有限差分方法(FDM)，并采用了完美匹配层(PML)边界条件。
An explicit finite-difference method (FDM) was used to model and simulate the solidification of eutectic cast iron by combining heat transfer equations with undercooling nucleation and growth laws.
综合热传导方程与过冷形核、生长规律，用显式有限差分法模拟了共晶铸铁的凝固过程。
Finite Difference Method (FDM) is usually used for calculating the temperature field of casting solidification processes.
有限差分方法是凝固过程温度场解析的常用数值计算方法。
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