A high order finite difference forward modelling method was proposed to improve its efficiency.
为了提高其效率，提出了一种高阶差分正演模拟方法。
A high order finite difference scheme is constructed based on non-uniform meshes for aero - (acoustics) applications.
研究了非等距网格下高阶精度有限差分方法用于气动声学问题的可行性。
The computational cost and memory requirements for the scheme are nearly the same as those used by the same order finite difference method.
三维格子法所需的计算机内存及计算耗时与同阶精度的规则网格有限差分法相当。
Highly precise solutions both in time and in space can be reached by solving wave equation with high order finite difference scheme of staggered grid under the condition of stability.
用交错网格的高阶有限差分方法解波动方程，在满足稳定性要求时，可获得时间和空间都是高阶精度的结果。
Based on the characteristics of the physical variables, the boundary near centerline is extended so that a high order finite difference scheme can be utilized as at inner mesh points.
根据相应物理量的特性，在中心附近进行边界延拓，使得内点的高精度差分格式可以同样应用在网格中心附近，从而无需单侧差分格式，保持了一致的高阶精度。
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。
In order to predict the production performance faster, streamline method was employed to solve this model as an alternative to the traditional finite difference methods.
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。
Higher order waves generated by a moving source in a two-layer inviscid, incompressible fluid of finite depth with small density difference were studied.
研究了运动点源在无粘、不可压且具有小密度差的两层有限深流体中生成的高阶波动。
Chapter one studied the finite difference methods of a class of high-order wave equations?
第一章研究了一类高阶波动方程的有限差分法。
Numerical modeling results for seismic wave propagating in rocks with random dis- tributed fractures using a staggered high-order finite-difference (SHOFD) are also presented.
最后，利用高阶的交错网格有限差分方法，我们模拟了地震波在具有随机分布裂缝岩石中的传播特征。
Various borehole and formation conditions were simulated using the fourth order accuracy in space and second order accuracy in time centered finite difference method.
利用空间上具有四阶精度、时间上具有二阶精度的中心差分方法，数值模拟了几种复杂井眼条件下的波场。
Furthermore, in order to solve the proposed model efficiently, we construct a semi-implicit numerical scheme by using finite difference method and estimate some important parameters.
然后为了能有效求解所得模型，本文利用有限差分方法构造了一种半隐式的数值离散格式，同时给出了模型中的几个重要参数的估计。
In this paper, we apply ADI and high-order compact finite difference method for large-scale asymmetric sparse matrix in semiconductor device simulation.
采用AD I与高阶紧致差分相结合的方法计算大型非对称稀疏矩阵，并实现了该算法在半导体器件模拟中的应用。
The TM set of equations can be solved using a finite difference time domain (FDTD) approximation that is second-order accurate in both space and time.
采用时间和空间均为二阶精确的有限差分方法，将偏微分方程进行差分化。这样，空间的电磁场可由时间域有限差分法（FDTD）来求解。
The application of ADI and high-order compact finite difference method to the breakdown voltage analysis of thin film SOI RESURF structure.
采用ADI与高阶紧致差分相结合的方法计算薄膜soiRESURF结构击穿电压。
The results show that the staggered-grid high-order finite-difference method can satisfy the demands of engineering with high accuracy and rapid computation.
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。
This paper present a new finite-difference scheme for solving first-order hyperbolic system.
本文提出一种适于求解一阶双向系统的新的差分格式。
This article provides the application of the high-order, staggered-grid, finite-difference scheme to model elastic wave propagation in 3-d isotropic media.
本文应用交错网格高阶有限差分方法模拟弹性波在三维各向同性介质中的传播。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
The Euler solution is obtained using time-marching method by MacCormack two-step finite-difference scheme, which has second-order accuracy in both time and space.
应用隐式时间推进法对不同马赫数的无粘和粘性流动进行数值分析 ，给出了基于预处理方法的高阶精度隐式求解方法。
The Euler solution is obtained using time-marching method by MacCormack two-step finite-difference scheme, which has second-order accuracy in both time and space.
应用隐式时间推进法对不同马赫数的无粘和粘性流动进行数值分析 ，给出了基于预处理方法的高阶精度隐式求解方法。
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