The first part covers material fundamental to the understanding and application of finite-difference methods.
第一个部分包括对有限差分法的理解和应用基本的材料。
A 48-hour forecast obtained by this method with actual data is comparable to the results given by a finite-difference model with a higher resolution.
对一个实例所做的48小时预报可与较高分辨率的差分模式相比。
The algorithm USES multi-time steps to replace single time step in traditional non-uniform finite-difference time-domain (NU-FDTD) method to enhance the computing speed.
该方法通过应用多个时间步长替代传统非均匀时域有限差分(NU - FDTD)法的单一时间步长的算法来提高计算速度。
In order to quickly predict the production performance, the streamline method was employed to solve this model as an alternative to the traditional finite-difference method.
为了实现生产动态的快速预测，用流线方法替代传统的有限差分法求解该模型。
It is investigated using finite difference time domain method based on Drude model.
采用基于等离子体物理模型的时域有限差分法对其进行了研究。
The property of the near field subwavelength imaging in a metal thin-film structure is investigated using finite difference time domain method based on Drude model.
采用基于等离子体物理模型的时域有限差分方法模拟了金属薄膜近场成像特性；采用薄膜传输矩阵方法计算了金属薄膜对倏逝波分量的放大作用。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
The results of the precise integration method agree well with the theoretical solution and have higher precision than those of the finite difference method.
数值算例表明，用精细积分法得到的解与精确解十分吻合，比有限差分法具有更高的精度。
We use finite difference method to solve electromagnetic wave equation.
采用有限差分方法，对波动方程求数值解。
The time domain finite difference and the finite element method are more convenient.
有限差分法和有限单元法在时间域里更为方便。
The near field distribution of uncoated and metal coated fiber optic probes were characterized by the method of three dimensional finite difference time domain (FDTD).
采用三维时间域有限差分（FDTD）方法研究了扫描近场光学显微镜中光纤微探针的近场分布特性。
The acoustical wave equation is presented a serial spatial and time iterative equations and room acoustics field is simulated using finite difference time domain method.
时域有限差分法将声波基本方程表示为一个时间和空间的迭代方程组，实现对室内声场中低频段的模拟计算。
Compared with Finite Element Method and Finite Difference Method, Boundary Integral Equation Method is computationally more efficient.
与有限元法和有限差分法相比，该方法具有更高的计算效率。
At the same time, based on the result, it is concluded that the upwind finite difference scheme for solving the one dimensional heat transfer equation for SG is stable.
同时，根据这个结果分析得到了求解蒸汽发生器一维传热方程的逆风有限差分格式是稳定的。
The results of transient temperature field calculated by finite difference method and ANSYS software agree with the experimental results.
高压氮气淬冷温度场的有限差分法计算结果和ANSYS有限元分析软件计算结果与实测结果吻合较好。
Numerical solution is given to mathematical model of formation temperature field by full implicit finite difference method.
并利用有限差分方法，对温度场数学模型进行数值求解。
Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh.
采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。
In solving the mathematical model, two time-saving and effective numerical methods have been tested and compared with the finite difference method commonly used.
对动态数学校型的数值求解，试验了两种颇为有效的方法，并将这两种方法和常用的有限差分方法作了比较。
Base on the Fourier law and conservation of energy, and combine the finite difference, this dissertation deduce finite difference temperature model.
以傅里叶定律和能量守恒定律为基础，结合有限差分理论推导出有限差分温度计算模型。
Authors described and analyzed the finite difference method and finite element method.
作者阐述并分析了有限差分方法和有限元方法。
There are two methods for the key of heat exchange:finite element and finite difference.
对于导热问题的求解常用两种方法：有限差分法和有限元法。
By using finite difference method, the derived equation was solved coupling with energy conservation equations.
利用有限差分法将该方程与能量守恒方程进行了耦合求解。
The method to calculate temperature profile is to combine finite difference of time with finite element of space.
温度场的计算采用时间域上的有限差分及空间域上的有限元相结合的方法。
Using the finite difference method we calculate the distribution of the electromagnetic field.
利用有限差分法实现了其正演计算，获得了电磁场的分布。
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。
The numerical solution is obtained by finite difference divergence of time, and finite volume divergence of space.
采用时间有限差分离散，空间有限体积离散的方法求问题的数值解。
The numerical solution is obtained by finite difference divergence of time, and finite volume divergence of space.
采用时间有限差分离散，空间有限体积离散的方法求问题的数值解。
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