method of finite difference
英 [ˈmeθəd ɒv ˈfaɪnaɪt ˈdɪfrəns]
美 [ˈmeθəd əv ˈfaɪnaɪt ˈdɪfrəns]
有限差分法
双语例句
- The paper predicts the changing tendency of groundwater resource in Changma alluvial fan by numerical modeling, applying the method of finite difference and irregular polygon cells.
应用有限差分方法，采用不规则多边形剖分，对昌马冲洪积扇区地下水资源数量的变化趋势进行了模拟计算。 - We use the character of Fourier transform and Inverse Fourier transform ( conjugate character) to solve the difficult problem and temporal differential coefficient, and we use the method of second order center finite difference to solve the question.
我们利用实信号的傅立叶变换和反傅立叶变换的基本性质即共轭性解决了空间偏导数的离散化问题，对于时间偏导数，我们则采用二阶中心差分的方法解决。 - Differential equation and boundary condition of diffusion of moisture of matter are established and solved numerically by the method of finite difference. The results of analog calculation coincide with results of experiment.
建立物料内水分扩散微分方程及边界条件，用有限差分法进行数值求解，模拟计算结果与实验结果相吻合。 - In this paper, a calculation method of the direct finite difference for latent heat of fusion is proposed, and based on the method, the three dimensional program of unsteady state heat conduction is developed.
提出了直接对凝固潜热进行差分计算的一套计算方法，在此基础上开发了三维非稳态凝固传热的计算程序。 - Nine points method of finite difference on rectangular grid
关于矩形网格上的九点差分近似问题 - The method of finite difference of high precision elastic wave equations in the frequency domain and wave-field simulation
高精度频率域弹性波方程有限差分方法及波场模拟 - A numeral method of computing synthetic seismogram, finite difference method is introduced, which can be used to calculate Lamb problem in vertical inhomogeneous media.
最后，介绍了一种计算垂向不均匀介质中拉梅问题理论地震图的数值方法&有限差分法。 - Based on operating principle and structure of household ice machine, the mathematic physical model of freezing process is developed according to enthalpy method. Implicit format of finite difference method is utilized and numerical simulation is analyzed.
根据家用制冰机的工作原理和结构利用焓法对其制冰过程建立数学物理模型，采用全隐式格式开展有限差分数值模拟研究。 - For estimating the reliability of this method, the method of finite difference is used for additional calculation on the Apple-I Computer.
为了评价网络模拟的可靠性，进一步用有限差分法在Apple-Ⅱ计算机上进行了计算。 - A general method of the design of the finite difference schemes is presented in the paper.
本文提出了一种设计有限差分格式的通用方法。 - To achieve the thermal stresses analysis of complicated castings, a method of transferring the finite difference meshes into finite element meshes was presented. Furthermore, the stress analysis was carried out by FDM/ FEM integrated system.
提出了有限差分网格向有限元网格转换的方法，进而在该有限元模型基础上采用FDM/FEM集成铸件热应力分析系统实现了铸件的热应力分析。 - When applying the method of Finite Difference Time domain ( FDTD) technique combined with Thompson transformation to calculate electromagnetic scattering problems of complex objects, the selection of difference schemes has an effect directly on the accuracy of numerical solution.
在微分&Thompson变换结合时域有限差分（FDTD）技术计算复杂目标的电磁散射特性的方法中〔1〕，差分格式的构造和选取与解的精度存在着密切关系。 - A new method of multiresolution finite difference for wave equation
多尺度有限差分方法求解波动方程 - Numerical calculation is based on the basic wave equations with the method of finite difference time domain in oblate spheroidal coordinate system.
本文对流体运动的基本方程组在时域上用有限差分法作数值计算，讨论了几个不同口径的凹口球形声源的声传播情况。 - This paper gives a derivation of equivalent well-block radii for different situations ( such as pseudostationary flow, non-inter well-block) by means of analytic solution and method of finite difference.
本文通过精确解和差分方程相结合的方法，导出了拟稳定渗流以及井格块不是内格块时井格块的等效半径； - Williams based on the method of finite difference.
Williams用有限差分法所得者作了比较。 - Numerical Methods for Pseudohyperbolic Equations Based on Combining the Method of Characteristic with Finite Difference Procedures
一类伪双曲型方程的特征-差分方法 - Using the method of the finite difference, the computational equations of the building have been dispersed, and the heat transmission of building envelop is discussed.
运用有限差分方法，研究了建筑屋面在铺设湿多孔材料条件下的传热问题和一般屋面的传热问题，对屋面传热的动态数值计算方程组进行离散。 - Method of Finite Difference in Calculation of Flood Regulation
调洪演算的有限差分法 - The results of the analysis indicate that the method of one direction finite difference has the following advantages: higher accuracy of calculation, requiring smaller storage capacity of the computer, and higher speed of calculation as well as easier treament of the boundary conditions of two ends.
分析结果，单向差分法具有计算精度高、要求计算机的内存容量少和计算速度快的特点，同时，两端边界条件的处理也比较容易。 - As solving, adopting method of finite difference for percolating model, finite element method ( FEM) for rock-change model while explicit alternation for fluid-solid coupling model and a stress field resulted from the change of pore pressure by oil/ gas production is obtained.
然后对渗流数学模型采用有限差分法求解，而岩土变形数学模型则采用有限元法求解，并采用显式交替求解方式将二者结合起来的储层流固耦合油藏数值模拟求解技术求解； - Analysis of Shells Using the Weighted Residual and Method of Finite Difference With Variable Mesh
用变步长差分法和加权残数法解薄壳 - Using the method of finite difference to discrete the governing equation, the elastic-plastic dynamic response of a simply-supported steel beam subjected to stepped loading and fire loading was investigated.
利用有限差分离散控制方程进行数值分析，研究了火侵袭时简支钢梁在阶跃载荷作用下的弹塑性动力响应。 - First, we calculate the field distribution near the end of slotted open-ended coaxial-line probe with resonant cavity structure by the numerical method of finite difference time domain ( FDTD), and study the relationship between reflection coefficient of probe and effective permittivity.
通过数值计算方法电磁场时域有限差分（FDTD）深入研究了开槽谐振腔同轴探头的末端场分布特点，同时计算了探头反射系数随假定稀溶液复介电常数实部、虚部变化关系； - The near field distribution of uncoated and metal coated fiber optic probes were characterized by the method of three dimensional finite difference time domain ( FDTD).
采用三维时间域有限差分（FDTD）方法研究了扫描近场光学显微镜中光纤微探针的近场分布特性。 - By using the method of the finite difference, the press field of static pressure thrust air bearings with pressure groove under column coordinate was stimulated.
采用有限差分法，对柱坐标系下带均压槽的圆形空气静压止推轴承的压力场进行了二维数值仿真。 - In comparison with the results calculated by Galerkin method of weighted residuals and finite difference method shows that the existing ODE solver can conveniently be taken for accurate and reliable solution of the eigenproblem of stability.
得到的结果与加权余量法和有限差分法结果进行比较，吻合得很好，表明稳定特征值问题能够凭借ODE求解器的功效得以精确、可靠、方便地求解。 - It is shown that this approach much more efficient than the conventional one, such as energy method, moment-area method, method of superposition and finite difference method.
这种方法优于传统的能量法，力矩面积法，叠加法，差分法等方法。 - The solution of Reynolds Average N-S Equation, the flow field governing equation, employs two-step projection method in scheme of finite difference.
用有限差分格式和笛卡尔网格实现计算域的空间离散，流场控制方程采用雷诺方程，并用二步映射法求解。 - At present the numerical simulation of electromagnetic method of finite difference method, finite element method, boundary element law, integral equation method, and so on were commonly used in the exploration.
目前电磁法勘探中常用的数值模拟方法主要有：有限差分法、有限单元法、边界单元法和积分方程法等。