根据输送边界条件，给出了动态模型方程的数值计算方法、管道离散格式、参数存储方法和差分方程。
Based on transmission boundary condition, gives calculation method for value of dynamic model equation, pipeline discrete form, memory method for coefficient and difference equation.
对深部矿柱在承受高静载应力时的动力扰动力学模型进行应力波传播力学响应分析，采用FLAC3D有限差分程序对深部开采圆形矿柱进行高应力下动力扰动数值计算。
By using an explicit finite difference program FLAC3D, a model of numerical calculation is established for a deep mining pillar with dynamic disturbance under high stress.
采用全隐式有限差分方法对模型进行了数值计算。
By using a full-hidden finite difference method a numerical calculation was conducted of the above-cited model.
因此用进化策略、差分演化算法、泛函网络来研究数值计算，有较高的理论价值和实际意义。
So, researching numerical computing by Evolution Strategy, Differential Evolution Algorithm and Functional Networks have higher theory value and practical significance.
应用有限元和有限差分方法对激光热处理过程的温度场、组织场进行了数值模拟计算。
The temperature field and microstructure field during laser heat treatment process were calculated using Finite Element Method or Finite Difference Method.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
普通有限元方法和有限差分方法是渗流计算中常用的数值方法，而贮量集中有限元方法则很少被实际应用。
Ordinary finite element and finite difference methods are often used for seepage calculation, while storage centered finite element method is rarely applied to practice.
在声波波动方程有限差分波场数值模拟中，由于计算模型的限制，导致很强的人为边界反射的产生。
In numerical wave simulation of finite difference for acoustic wave equation, due to the limitation of computer model, there inevitably exists strong artificial boundary reflection.
提出了基于时域有限差分算法的计算无限大导体和介质薄片电磁屏蔽效能的电磁场数值计算方法。
An electromagnetic field numerical method is put forward to analyze shielding effectiveness of the infinite thin conductor and dielectric sheet based on the FDTD.
进一步地，我们采用二分法与相平面分析结合的方法计算压差方程的数值解。
Furthermore, we compute the Riemann solution by using a bisection method combined with the phase-plane analysis.
根据喉部沉积的传热模型建立了偏微分方程组，采用有限差分完全隐式格式进行数值分析计算。
On this heat transfer model the differential equations were based, and the finite difference complete concealed grids were used in the numerical analysis computation.
数值计算中采用了分解算法及隐式时间差分方案。
Splitting method and implicit time difference scheme are used in the numerical calculation.
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。
Finite Difference Method (FDM) is usually used for calculating the temperature field of casting solidification processes.
方法以差分盒计算方法计算肝脏CT图像表面灰度的分维数值。
Method The value of fractional dimension for liver CT image is calculated by differential box counting.
建立了含有微气泡的平板边界层方程，并采用一种简单的混合长度模型和有限差分方法对该方程进行了数值计算。
The equations of the boundary layer containing microbubbles on the plate are established, then calculated employing a simple mixing length model and a finite difference method.
为了提取木材纹理特征，提出采用改进差分盒子法计算木材纹理细胞图像的分形维数值。
Therefore, this paper used improved box-counting approach to compute the fractal dimension of wood texture cell image.
为了克服理想匹配层的差分误差，减少计算开销，提出数值匹配条件。
Numerical matched condition is proposed to overcome the difference error and to reduce the computational expense of PML.
数值计算运用时域有限差分（FDTD）法，数值模拟结果为以后的反应器流光放电模拟及结构优化提供依据。
The procedure is based on a finite difference time domain(FDTD) scheme. The numerical results will offer theoretic reference for streamer discharge simulation or geometry optimization of reactor.
数值模拟计算采用全隐格式差分方法，用水分冻结量的增量处理相变潜热。
The fully implicit difference method was employed, and the latent heat release was handled with the increment of frozen water fraction.
讨论了计算二维静电场的非正交有限差分算法，给出了数值计算公式。
A finite difference method in non orthogonal curvilinear coordinate is used for the simulation of two dimensional electrostatic field. The computational formula is derived.
结果表明：交错网格高阶有限差分波场数值模拟具有较高的精度，计算速度快，基本能满足工程上的需要。
The results show that the staggered-grid high-order finite-difference method can satisfy the demands of engineering with high accuracy and rapid computation.
FDTD数值计算要采用增加辅助变量和相应的辅助差分方程的方法使FDTD迭代计算稳定。
In order to get FDTD iterative computation stable, FDTD numerical method should increase the subsidiary variable and the corresponding auxiliary difference equation.
常用的数值计算方法有有限差分法和有限元法，但用标准的有限差分方法求解数学模型时常常失效，根本原因在于对流项的存在。
The basic numerical simulation method is FDM and FEM, but the traditional FDM are not efficient for some models with convection term.
建立了起动绕组及其周围的简化二维温度场数学模型，并由有限差分方法求其数值解。最后给出了计算实例。
A simplified 2d model for resolving temperature field problem of the machine is developed and the computer simulation results are obtained using finite difference method.
计算结果表明：小波数值均匀化方法与精细剖分的有限差分法相比较，既大大地节省了计算时间又获得了较好的精度。
Then the wavelet transform numerical homogenization gets numerical results at a low cost for solving the original equation in coarse scale space. The numerical results show that th…
计算结果表明：小波数值均匀化方法与精细剖分的有限差分法相比较，既大大地节省了计算时间又获得了较好的精度。
Then the wavelet transform numerical homogenization gets numerical results at a low cost for solving the original equation in coarse scale space. The numerical results show that th…
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