The finite difference scheme - ADI method is used to solve the seepage field model.
采用交替显隐式有限差分格式对渗流场模型进行了求解。
The finite difference scheme for centered differences in space and time is adopted.
采用时间空间中央差分进行数值求解。
Time integration of an initial value problem USES the finite difference scheme quite often.
初值问题的时间积分经常采用差分近似。
Finally, the finite difference scheme was interpreted by a discrete random walk model under a certain condition.
最后，对上述的两层有限差分格式在一定条件下进行了离散随机游走的解释。
Then the new step function space is introduced and stability problem for the finite difference scheme is discussed by means of variational approximation method.
然后引入新的步长函数空间，并在这个空间上，采用变分近似法讨论该格式的稳定性问题。
The symplectic preservation of the finite difference scheme is considered, however, the projection operation onto the constraint manifold still brings problems.
虽然已经注意差分的保辛，但沿切面积分再投影，仍带来许多问题。
Then the new function space is introduced and the stability problem for the finite difference scheme is discussed by means of variational approximation method in this function space.
然后引入新的函数空间，并在这个空间上，采用变分近似法讨论了该格式的稳定性问题。
Based on the moving least squares method and the finite difference scheme, a new element \ | free method is proposed and used to simulate horizontal two dimension river flow with complicated boundary.
本文通过引入滑动最小二乘法和有限差分法，得到水动力学无单元计算法并应用于复杂边界的河道水流运动方程。
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。
The computer experimental scheme to simulate the plasma particle is de-signed. The simulation result shows the effects of finite—size particle and time difference on dispersion relation.
文中设计了等离子体粒子模拟的计算机模拟实验方案，验证了有限大小粒子和时间差分方法引起的对于色散关系的偏离；
The perturbational finite difference method (PFD) is a new method of constructing high accurate difference scheme.
摄动有限差分（PFD）方法是构造高精度差分格式的一种新方法。
In the article, the fully discrete finite difference scheme for a special nonlinear reaction-diffusion equation is established.
对一类特殊的非线性反应扩散方程进行完全离散，得到非线性的有限差分格式。
This paper puts forward a new multiple gird scheme, which is used with the combination of explicit time marching method, finite volume difference code and distributed body force.
提出了一种新的与显式时间推进法、有限体积差分格式、粘性体积力法有效地配合使用的多重网格法来求解叶轮机械可压流动。
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。
We examine the super compact symmetric finite difference scheme (SCSFD) and compare it with traditional difference methods and compact difference methods.
用分块流水线方法设计了超紧致差分格式的并行算法，进行数值实验及并行性能分析。
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。
Finally, the boundary treatment of the compact finite difference scheme is discussed and compared with the numerical result with periodic boundary conditions.
最后讨论了有限差分紧致格式的边界处理问题，并与用周期边界条件计算的结果进行了比较。
The groundwater flow is emulated with the seepage model of heterogeneity anti-isotope, and the partial differential equations are solved with finite difference scheme of irregular triangle net.
本文基于研究区地下水系统概念模型，以非均质各向异性渗流模型仿真裂隙-岩溶水流，用有限元法求数值解。
The energy equations of the oil film and the bush are solved simultaneously by using an efficient finite difference scheme.
用一有效的有限差分法同时求解油膜和轴瓦的温度控制方程。
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。
Compact finite difference scheme (CFDS) on non-uniform meshes and their truncation errors are constructed by matching the Taylor series coefficient expansion.
采用泰勒展式系数匹配的方法构造基于非等距网格的紧致差分格式并得出了它的截断误差。
The mesh used in the code is signed by Finite Control Volume method. Power Law Difference Scheme(PLDS) used in the calculation not only is simple but also has high precision.
采用PLDS法进行数值插值，这种插值方法不但较为简单，而且计算精度高，优于传统的中间差分法；
Compact finite difference scheme (CFDS) based on non-uniform meshes is constructed by matching the Taylor series coefficient expansion, and its truncation errors are analyzed.
采用泰勒展式系数匹配的方法构造出了非等距网格系统的紧致差分格式，并分析了其截断误差。
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。
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。
In this paper, the numerical methods, issues and development for aeroacoustics, were described, including finite difference scheme, boundary conditions and nonlinear acoustics and shocks.
本文介绍了气动声学数值计算的方法和有关的问题、边界条件的处理以及计算非线性声波的数值方法和进展。
Based on the non-linear kinematic wave method, a technique using the four point, excentric, implicit, finite-difference numerical scheme to simulate the urban storm sewer system is introduced.
本文根据非线性运动波法理论，介绍了四点非中心隐式有限差分格式模拟城市雨水管网的技术。
Based on the non-linear kinematic wave method, a technique using the four point, excentric, implicit, finite-difference numerical scheme to simulate the urban storm sewer system is introduced.
本文根据非线性运动波法理论，介绍了四点非中心隐式有限差分格式模拟城市雨水管网的技术。
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