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。
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 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。
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。
With discrete mathematical method, the transformed equation is solved by finite control volume method and Galerkin finite element method.
最后用有限控制体积法和伽略金有限元法对变换后的方程进行数学离散并求解。
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.
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。
The text describe the theory of the finite element method, the cell dividing and constructing interpolation function, the forming and solution of finite element method equation.
研究了有限元方法的原理，单元剖分及构造插值函数，有限元方程的形成和解法。
The finite element equation is formulated with moving coordinate system in order to solve a typical problem.
为了解决烧蚀移动边界问题，采用了在动坐标系上建立有限元素方程。
The penalty finite element equation for ternary viscous incompressible permanent flow inside the guide shell of an oil transmission pump is established by using the penalty finite element method.
运用罚有限元方法，对油泵导壳内部三元粘性不可压缩定常流动建立了罚有限元方程。
Wmethod, the increment finite element equation of original formation on the T. L coordinate. was established.
L 坐标，建立了初始构形的大变形增量有限元方程。
This article brings forward an approximate analytical solution to Reynolds equation for finite journal bearings.
本文给出有限长径向轴承雷诺方程的一种近似解。
In the numerical simulation of the wave equation, to develop an absorbing boundary condition in the finite domain is a very important problem.
在地震波传播的数值模拟中，在有限区域建立吸收边界条件是一个很重要的问题。
More practical ray tracing methods currently include the wavefront method, the shortest path method, the travel time epenthesis method, the eikonal equation finite difference method, etc.
当前实用性较强的射线追踪方法，包括波前法，最短路径法，走时插值法，程函方程有限差分法等。
It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.
用波的反射原理求解有限区间上的波动方程是数学物理方程中的基本内容，也是教学中的难点内容。
AimTo study the properties of a equation in a finite field.
目的研究有限域中一个方程的性质。
The pressure equation is solved by mixed finite element method, while the concentration equation is solved by finite difference-streamline diffusion finite element method, that is, using SD f.
提出了解不可压缩两相混溶驱动问题的一种新的数值方法，压力方程用混合有限元求解，浓度方程用差分流线扩散方法求解。
By making use of heat balance of finite elements in variable domain, a differential equation of control has been derived.
利用有限元的受热平衡，推导出可变域中发汗控制微分方程序。
Using the finite difference method, the state equation of the transverse vibration of an axially moving rectangular membrane is derived.
利用有限差分法，导出了轴向运动矩形薄膜横向振动控制系统的状态方程。
Based on interval analysis and displacement finite element method, the static displacement response analysis of structure comes down to solve the interval finite element control equation.
现有的理论和方法采用区间分析和位移法有限元理论对其进行分析，最终归为位移法区间有限元控制方程的求解。
It is briefly introduced that three-dimensional finite difference numerical equation is built according to Darcy's law and water equilibrium principle.
又简介根据达西定律和水均衡原理，建立了三维有限差分数值方程及其解法。
On the basis of non linear finite element method, fundamental equation and solution of pneumatic membrane structure finite element analysis are put forward.
以非线性有限元法为基础，提出充气薄膜结构有限元分析的基本方程及解法。
Accurate geometry! Non linear finite element increment equilibrium equation is set up by two orders theory. Typical structure stability is analyzed with this accurate finite element method.
由二阶理论建立了梁杆结构分析的精确几何非线性有限元增量平衡方程，并利用精确有限元方法对一些典型结构进行了稳定性分析。
At present, the common numerical methods are finite difference, finite element, boundary element, integration equation and transmission line method.
目前，解决这类问题的数值方法主要有有限差分法、有限元法、边界元法、积分方程法、传输线法等。
The text is detailed to study the deducing process of the nodal finite difference equation, and to study its application hi the rock mass engineering problems.
本文详细研究了节点有限差分运动方程的推导过程，以及在岩土工程问题中的应用。
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。
We analyse the common radial and time Schrdinger equation using finite differential approach, get dispersion equations of two kinds of Schrdinger equation by finite differential approach.
对普通的径向薛定谔方程和含时的薛定谔方程进行了有限差分法的分析，给出了两种薛定谔方程的有限差分法的离散方程。
This paper put forward a new calculation method-express linear iteration for simple iteration of finite element equation of resolving non-linear electromagnetic field.
本文针对求解非线性电磁场有限元方程的简单迭代法，提出了一种新的算法-快速线性迭代法。
This paper put forward a new calculation method-express linear iteration for simple iteration of finite element equation of resolving non-linear electromagnetic field.
本文针对求解非线性电磁场有限元方程的简单迭代法，提出了一种新的算法-快速线性迭代法。
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