The finite differential method was applied to develop a simulation software for solidification temperature field in continuous casting.
采用有限差分方法，自行开发了连铸过程的凝固温度场模拟软件。
For the analysis and calculation of such kind of bearing the Reynolds' equation is directly solved by the finite differential method with inequal steps.
利用不等步长有限差分法直接求解雷诺方程，进行轴承的分析计算。
Using the finite differential method we calculate the temperature field and frozen depth of pavement proper when the road is freezing by degrees with moisture migration.
采用有限差分方法，完成了土基冻结逐渐进行且伴随有湿迁移的路面体温度场的计算和冻结深度的确定。
The solution of the heat transfer submodel is worked out by the finite differential method; while the solution of the flow submodel is worked out by the characteristic method.
该模型由一传热子模型和一流动子模型耦合组成，分别用有限差分法和特征线法求解。
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。
By deriving balanced differential equation of buried pipeline, adopt finite difference method to analyze and calculate the effect of axial build-in force on pipeline transversely displacement.
推导出埋地管道的平衡微分方程，采用有限差分法分析并计算了轴向嵌固力对管道横向位移的影响。
The nonlinear differential equations are solved using finite difference method.
用有限差分法求解非线性微分方程组。
In order to improve the convergence rate, a correct Fourier expand method was introduced to differential theory of the finite conductivity diffraction grating.
在有限电导率光栅的微分理论中引入校正傅里叶展开方法，改善了计算收敛性。
We all know that both finite element method (FEM), symplectic algorithm and multi-symplectic algorithm are powerful tools to solve partial differential equations numerically.
我们知道有限元方法以及辛算法和多辛算法是解偏微分方程数值解的重要方法。
It derives a discrete type of the common differential equations by the use of the finite volume method, and the formulas for the calculation of the coefficients.
用有限体积法推导了通用微分方程的离散形式，并导出了各种离散系数的计算公式。
The time history curves and the phase diagram for the oscillation are obtained by solving the differential relation between vibration amplitude and tensile load with finite difference method.
应用有限差分法求解球壳振动的振幅和外加荷载之间的微分关系，得到了球壳振动的时程和相图。
Theoretical analysis is done on the static and dynamic characteristics of the structure, differential equations are presented, and it is also verified by the finite element method.
同时对机构进行了静态和动态特性理论分析，提出了机构静态和动态计算解析式，并用有限元方法对机构动态和静态特性进行了验证。
In solving partial differential equation (i. e. pricing model), the author adopted the finite difference method to get its numerical solution.
本文采用有限差分法求解偏微分方程(即定价模型)的数值解。
The partial differential equation of flow in porous medium has been studied with variational finite element method.
用变分有限元方法对描述地下流体渗流的偏微分方程进行了分析。
This method is available for solving large matrix equations with (Finite Element method) or Finite Differential Element method.
该方法克服了有限元或有限差分法需求解大型矩阵方程的困难，计算简单、结果可靠。
First, the partial differential equations are transformed into discrete space, discrete time nonlinear difference equations through characteristic method and finite difference approach.
首先，通过特征线法和有限差分法得到了时间离散和空间离散的非线性状态方程。
As the same as finite element method, the finite volume method is also a numerical method for solving partial differential equations.
有限体积法现在已经成为和有限元方法并驾齐驱的一种求解偏微分方程的数值方法。
In this paper , we consider the Expanded Mixed Finite Element Method and mixed covolume method for the quasilinear parabolic integro-differential equation and quasilinear parabolic problem.
本文中我们采用扩展混合有限元方法和混合体积元方法数值模拟了二阶拟线性抛物型积分微分方程和二阶拟线性抛物问题。
Locally implicit finite element method is a satisfactory numerical method to solve non-linear partial differential equations for its unconditional stability and its high rate of convergence.
认为局部隐式有限元法是一种绝对稳定的方法，且具有快速收敛的性质，是求解非线性偏微分方程的一种有效的数值算法。
The partial differential equation (PDE) for heat conduction was solved with the finite element method and the PDE toolbox was adopted to obtain the numerical simulation.
采用有限元法求解梁截面导热偏微分方程，应用pde工具箱得到数值解。
The temperature field of a large forged back-up roll during differential heating and cooling was simulated with a computer based finite element method.
利用热处理温度场的计算机模拟软件计算出大型锻钢支承辊锻件差温加热及冷却时的温度场。
A finite difference method based on differential-integral equation is presented for the solution of Navier-Stokes equations for incompressible viscous flow.
本文提出了基于微分-积分方程组求解n - S方程的有限差分法求解不可压缩实际粘性流体绕孤立翼型流动。
The partial differential equations are discretized by finite difference method and the transient values of towed body depth and cable tension are computed by Newton Iteration when the heave …
数值计算结果表明采用收放拖缆的升沉补偿方法能够有效削弱母船升沉运动对拖体深度和拖缆张力的影响。
The partial differential equations are discretized by finite difference method and the transient values of towed body depth and cable tension are computed by Newton Iteration when the heave …
数值计算结果表明采用收放拖缆的升沉补偿方法能够有效削弱母船升沉运动对拖体深度和拖缆张力的影响。
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