The numerical schemes of DNS are based on finite difference methods.
DNS的数值方法基于有限差分法。
Both of finite element and finite difference methods were used in numerical simulation.
采用有限单元和有限差分混合方法求数值解。
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。
At present, the most commonly used methods include: Monte Carlo methods, binomial tree, finite element and finite difference methods.
目前比较成熟的数值方法有：蒙特卡罗方法，二叉树方法，有限元和有限差分方法。
The rate of data management is fast with analytics, as compared with finite difference methods, and therefor, fast monitoring of rotor can be performed.
和差分法相比，解析法的数据处理速度快，能满足快速监测、及时跟踪与控制的要求。关键词：汽轮机转子；温度场；
The finite difference methods based on acoustic or elastic wave equation are very useful tools for wave-field numerical modeling or VSP data synthesizing.
基于声波或弹性波方程的有限差分方法是数值模拟地震波场或合成VSP地震记录的有力工具。
The paper briefly reviews some finite difference methods of the turbulent boundary layer, their differences and characteristics, and some other related problems.
本文概述了紊流附面层几种差分解法，它们的差异与特点、以及有关问题。
Based on MIMD parallel computer model, parallel implementation of explicit finite difference methods has been discussed for computational fluid dynamics (CFD) problems.
基于MIMD并行计算机模型，本文讨论了CFD问题应用显式有限差分方法的并行化问题。
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。
Ordinary finite element and finite difference methods are often used for seepage calculation, while storage centered finite element method is rarely applied to practice.
普通有限元方法和有限差分方法是渗流计算中常用的数值方法，而贮量集中有限元方法则很少被实际应用。
By means of finite difference methods, the numerical analysis is carried out on the static performance of hemispherical spiral groove aerodynamic bearings, and the discussion on the computed results.
运用有限差分法对圆锥形螺旋槽气体动压轴承的静特性进行了数值计算，并对计算结果进行了分析。
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。
In solving the mathematical model, two time-saving and effective numerical methods have been tested and compared with the finite difference method commonly used.
对动态数学校型的数值求解，试验了两种颇为有效的方法，并将这两种方法和常用的有限差分方法作了比较。
The first part covers material fundamental to the understanding and application of finite-difference methods.
第一个部分包括对有限差分法的理解和应用基本的材料。
The analysis show that the finite difference method based on the free boundary problem and the Laplace method based on the free boundary problem are two good numerical methods.
数值实验结果表明：基于自由边界问题的有限差分法和基于自由边界问题的拉普拉斯变换是两种良好的数值方法。
The emphasis is placed upon the numerical methods, including finite difference method, finite element method, boundary element method and so on.
着重讨论了包括有限差分法、有限元法和边界元法等在内的数值方法。
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。
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。
Analysis methods for internal force of retaining piles are also discussed, such as finite difference method, biparameter method, modified cantilever-pile method, and finite element method, etc.
主要内容包括：抗滑桩内力计算方法研究（如有限差分法、双参数法、改进的悬臂桩法、有限元法）；
The pseudo-spectrum method uses Fourier transform and finite difference to solve wave equation. It is one of the important methods used to simulate the seismic wave field.
伪谱法利用傅立叶变换和有限差分求解波动方程，是三维波场正演模拟的重要方法之一。
Simple examples for explaining the unifying realization methods of state space and difference equation model using finite markov parameters are also presented in this paper.
并以简例说明了用有限的马尔可夫参数实现状态模型和差分模型的统一方法。
FDM (Finite Difference method) is one of the important numeric calculation methods used in Groundwater Gynamics.
有限差分法是一种重要的数值计算方法。
In this paper the error caused by grinding heat is analyzed by using methods of finite element and finite difference, and the theory datas are contrasted.
本文利用有限差分和有限元两种方法对磨削热引起的误差进行了分析，并对理论数据进行了对比。
Finally, the vector data were incorporated into the traditional numerical methods, such as finite element method and finite difference method for numerical simulations.
最后，岩石的矢量细观结构可以与数值计算方法——有限元法或有限差分法结合，从而实现非均质岩石材料的力学分析。
With regard to complicated inverse problems, numerical methods are always adopted to deal with them, such as finite element method, finite difference method and boundary element method.
对于复杂结构的反问题，通常采用数值方法求解，如有限元法、有限差分法、边界元法等。
These equations can be solved using numerical methods based on the finite difference or the finite element.
这些方程可以通过有限差分或有限元等数值方法进行求解。
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。
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。
The numerical results show that this technique seems to be simpler and more effective than other procedures, such as the finite difference and characteristic line methods…
计算说明，这种方法比差分方法和特征线性方法简单有效，从而有较大的实用意义。
The numerical results show that this technique seems to be simpler and more effective than other procedures, such as the finite difference and characteristic line methods…
计算说明，这种方法比差分方法和特征线性方法简单有效，从而有较大的实用意义。
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