查询词典 numerical analysis

As one kind of means for quantitive forecast and analysis, the numerical simulation technique can provide necessary theory basis and guidance scheme for the implement of this technology.

作为一种定量预测、分析手段，定向羽状水平井开采的数值模拟可为该技术提供必要的理论依据和指导方案。

In this paper, some basic CFD problems are studied, including ENO/WENO schemes, CFD systematic analysis, object-oriented programming method and zone divided parallel algorithm. These methods enriched and advanced the CFD algorithms, and then these algorithms were applied in numerical applications of the scarfed reversal nozzle and the open cavity. This promotes the speed of the CFD algorithm combine with the project applications.

本文通过对ENO／WENO格式、CFD计算系统分析、面向对象的程序设计方法以及分区并行计算等一些基本问题的研究，进一步丰富和发展了CFD的分析方法，并将所研究的CFD技术应用于斜切反喷管和空腔流动的计算分析中，推动了CFD技术进步同工程应用的紧密结合。

In this paper numerical simulation on the mechanical expanding process of line pipe is made by means of elastic-plastic FEM analysis software-MARC. The influence of sectorial angle on deformation characters is especially analyzed, and some useful results are gained.

本文运用大变形弹塑性有限元分析软件MARC，对管线钢管机械扩径过程进行了数值模拟，著重分析了扩径模具的扇形角对扩径过程的影响，得到了一些有益的结论。

First, the analytical formula of the spheriform water-bearing structures advanced detection in the whole space is deduced. Based on the analysis of large forward modeling results with finite element numerical simulation method, the apparent resistivity data in 3-D space with tunnel is translated into the data of advanced detection in the whole space with comparison method.

首先，推导出了无限全空间中球体含水构造直流电法超前探测的解析解公式，并在利用有限元数值方法进行正演分析的基础上，借助&比较法&将含隧道腔体的三维空间中超前探测视电阻率数据转换为无限全空间中的数据，并探讨了由MN电极附近电阻率不均匀所造成的干扰以及识别和去除这种干扰的方法。

To arrange the prestressed tendons and anchor devices on the web of box girder conveniently, a theoretical analysis, numerical calculation and model test on local stresses in concrete under anchor devices were performed separately using a typical segmental model, a subrange model and a similar model for the scheme design of Hutiaomen major bridge.

为便于箱梁腹板预应力筋及锚具的布置，结合虎跳门连续刚构桥的方案设计，对特征节段模型、子区域模型和试验模型锚下混凝土局部应力分别进行了理论分析、数值计算和试验研究。

These results in the chapter two are on the basis of theocratical analysis and numerical simulations such as condition for SNB and Hopf bifurcation, bifurcation diagram, trajectories, Lyapunov exponent, Floquet multipliers, dimension of attractor and so on.

本章的结论是根据理论分析和数值模拟的结果，这包括给出SNB和Hopf分支条件，分支图，轨线模拟，Floquet乘子的计算，Lyapunov指数和吸引子的维数的计算等。

The transient electromagnetic installation conmmonly sued in detection of water-accumulating gob in coal mines is configuration of central loop—fixed loop sources,systematic theoric analysis and numerical modeling were made in the paper in term of rim effect.

瞬变电磁法探测煤矿积水采空区常用的装置为大定源-中心回线组合方式，由此产生的边框效应问题本文进行了系统的理论分析和数值模拟。

Theorical analysis and numerical results demonstratethe performance of the new method.

理论分析和数值实验结果表明了此模型的有效性。

The field survey, sampling, testing and collection of the geological and hydrogeological data were done for the description of evolutional geological structure and sedimentation and division and definition of water-bearing system and hydrogeological age and hydro-pressure system and study of the vadose field and chemical field. By establishing the rammer numerical model, the sandy mudstone thickness recovery model, water-rock interaction particle translative simulation and hydrogeochemical simulation, and using geological statistics, analogism and complex analysis method, water circulation and water exchange of each layer in each study stage have been researched, The results show the regularity of the vadose field evolution in different stages.

本项以野外调查、采样测试和搜集的地质、水文地质大量第一性资料为依据，在论述盆地的地质构造演化、沉积演化的基础上，以含水系统、水文地质期和水压系统类型的划分和定位为研究的切入点，渗流场、化学场为研究主线，通过建立压实数学模型、砂泥岩恢复厚度数学模型、水岩作用物质成分转移的实验模拟、水文地球化学模拟、地质统计法、类比法、综合分析法等方法，模拟计算了各研究层在各研究时期水循环特点和水交替强度，揭示了各研究层渗流场在地史进程中形成演化的规律性。

At the same time, carrying through numerical simulation on temperature field under three kinds of cases by ADINA-T in ADINA software, it makes a sensitive analysis to key points in tympanites roadbed and makes a conclusion that the side close to river valley is easier to produce highway tympanites than the side close to another.

通过运用有限元计算程序ADINAT对翻浆路基处于三种工况下温度场的数值模拟，对关键点进行敏感性分析，位于路堤同一深度，工况一中剖面Ⅰ—Ⅰ节点的温度相对剖面Ⅱ—Ⅱ节点的温度均低0.045K；工况二中剖面Ⅰ—Ⅰ节点的温度相对剖面Ⅱ—Ⅱ节点的温度均高0.023K；工况三中剖面Ⅰ—Ⅰ节点的温度相对剖面Ⅱ—Ⅱ节点的温度均高0.022K。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。