有限差分法

并讨论了电磁场问题的求解方法，常用的是有限差分法和有限元法。

It discusses the resolvents to the problem of electromagnetic field , and the mostly used resolvents are FDM and FEM .

采用有限差分法对新坐标系中的模型控制方程进行了数值离散，根据差分格式编制了相应的计算程序。

The FDM is applied to the numeric discreteness of control equations under the new coordinates and the corresponding programs are developed .

RC网络模拟与有限差分法

R-C networks analogy and finite difference technique

其中时域有限差分法（FDTD）是求解麦克斯韦微分方程的直接时域方法。

FDTD is direct time domain method for solving Maxwell 's equations .

Monte-Carlo有限差分法和Monte-Carlo有限元法的一点注记

A Note for Monte-Carlo Finite Difference Method and Monte-Carlo Finite Element Method

二维不可压Navier-Stokes方程的紧致有限差分法

Compact finite difference methods of two dimensional incompressible Navier Stokes equations

简单介绍了时域有限差分法（FDTD）的基本理论，并与其他几种数值方法进行了比较；

The basic theory of FDTD is introduced and compared with other numerical methods .

水平磁场台际转换函数Cu的大小&有限差分法模型计算研究

On the magnitude of the interstation transfer functions C_u of the horizontal magnetism field & A study on the numerical modeling of finite difference

基于MPI的电磁场时域有限差分法的网络并行研究

A Research on the Network Parallelization of FDTD with MPI

利用有限差分法对LD侧面泵浦Nd∶YAG板状激光器介质的二维温度分布进行了数值计算。

The temperature distribution of LD pumped Nd ∶ YAG laser slab is calculated by using finite difference method .

通过有限差分法求解了焊接熔池波动频率与焊接熔池半球体半径R之间关系的数值解。

Using the finite difference equation , the numerical solution of the relationship between the vibration frequency and radius R of hemispherical welding pool was solved .

它是基于变分法和有限差分法的结合，适用于任意折射率分布和r值。

This method is based on the combination of variation and finite difference methods , and is suitable for the arbitrary index profile and width-depth ratio .

应用时域有限差分法（FDTD）分析和计算了一种开口式同轴加热装置。

In this paper , an open coaxial heating device is analyzed and calculated by using FDTD .

有限差分法全波VSP模型

Modeling full-wave VSP record by finite difference method

时域有限差分法（Finite-DifferenceTime-DomainMethod简称FDTDMethod）是广泛应用于电磁学问题的一种时域电磁场数值计算方法。

Finite Difference Time Domain Method ( FDTD ) is one of the most popular time domain methods in numerically solving electromagnetic problems . Firstly presented by K. S.

迄今，已有几种经典解法：FFT方法、有限差分法、有限元法等。

To date , there have been several classic solutions : FFT method , finite difference method , finite element method .

用有限差分法对固结方程进行数值计算，并用FORTRAN语言编制了相应的计算程序，获得了红粘土固结方程的有限差分数值解。

The numerical solution of consolidation equation has been obtained by means of Finite difference method and FORTRAN program .

PML吸收边界的时域有限差分法的数值色散研究

Numerical Dispersion Analysis of the PML Absorbing Boundary Condition Based Finite Difference Time Domain Method

本文利用有限差分法求解间歇窑窑墙中的温度分布，并用C语言设计了窑墙温度场图形仿真软件。

Using the finite method to solve the problem of temperature distribution in the wall of periodic kiln wall and using the language C , the software system of figure emulation is developed in this paper .

经过数学推理，导出裂步Fourier法真振幅偏移和Fourier有限差分法真振幅偏移的算子方程，并给出其具体的实现过程。

Moreover , the Split Step Fourier ( SSF ) and Fourier Finite Difference ( FFD ) migration operators with true amplitude are derived by mathematical inference and specific steps are given .

从电磁波传播方程出发，基于时域有限差分法（FDTD）进行离散求解，获得了适合含水量测试的同轴电缆电磁波反射（TDR）系统的FDTD方程。

For the applications of TDR system in measuring water content , FDTD equations were obtained based on the propagation equations of electromagnetic wave .

本文主要研究了时域有限差分法（FDTD）的几种新技术以及矩量法在波导缝隙阵中的应用。

In this thesis , applications of several new algorithms of FDTD and MoM ( Method of Moment ) in waveguide slot antenna array are studied .

然后用时域有限差分法（FDTD）数值计算了锥形光纤光场分布，论述了在不同的包层半径处，光纤锥的光场分布特性。

Optical field in tapered optical fiber is numerically simulated using 2D finite-difference time-domain ( FDTD ) method , optical character in different cladding radius is expounded .

本文应用时域有限差分法（FDTD）分析了双极化口径耦合多层微带贴片天线。

A direct three dimensional finite difference time domain ( FDTD ) method is applied to the full wave analysis of dual polarization aperture coupled microstrip antenna .

采用时域有限差分法，利用Matlab语言编程，对几个有代表性的地电模型在时域内进行了无线电波透视正演模拟，获得了时域响应波形及场强的空间分布。

Several of representative models were carried the forward simulation of the radio wave penetration through the finite-difference time-domain method with the Matlab language and the time-domain response waveform and field intensity spacial distribution were obtained .

用交变隐式差分方向的时域有限差分法（ADIFDTD）计算了掺Er3+玻璃平面光波导放大器中光场的分布。

The optical field distribution of Erbium-doped glass planar waveguide is calculated first by the Finite-Differences Time-Domain based on Alternating-Direction Implicit Method ( ADI-FDTD ) .

采用电、磁场各分量均位于网格中心的高阶时域有限差分法计算PBG结构的色散特性。

In this paper , the dispersion relations of 2D-PBG structure are calculated , by using non-Yee grid high-order FDTD method .

最后，导出各能量泛函所对应的Euler-Lagrange方程，并利用有限差分法进行数值求解。

Finally , finite difference schemes are used to solve the Euler-Lagrange functions derived from above models .

其桩周土模型采用Winkler假定，应用有限差分法将桩式丁坝框架结构的各梁柱单元离散后联立起来，从而求得整个结构的动力响应。

Adopting Winkler model for soils , the dynamic response of the whole structure was obtained by means of finite difference method .

本文用具有QUICK方案的有限差分法对底部加热的低Prandtl数水平流体层自然对流换热进行了数值计算，研究了这种问题中存在的振荡和分歧问题。

Bifurcation and oscillation were studied for the natural convection in a horizontal layer of low Prandtl number fluid using SIMPLE algorithm with a kind of QUICK scheme .