数值

The tanglesome problem,which includes the coupling of detonation of highexplosives,propagation of blast wave and interaction of explosion wave and shellstructures,is resolved by a staged calculation procedure.A numerical simulation tothe elasto-plastic structural response of the double-walled explosion containmentvessels closed with flat head,which has not been reported by other literatures before,was performed.The simulated results are in good agreement with that of theexperiment.The characteristics of the dynamic response of the vessels weresummarized.Some noticeable new phenomena were pointed out.

在数值分析方面，本文对一个包含有装药爆炸、爆炸波传播、爆炸冲击波与结构相互作用的复杂耦合问题，提出了分段解耦的计算方法，并首次完成了带平板封头的双层圆柱形爆炸容器弹塑性结构响应的数值模拟，得出了与实验基本一致的结果，总结了圆柱形爆炸容器弹塑性结构响应的基本特点，并发现了一些值得注意的新现象和新问题。

In this paper, The delta wing of Mach number 0.8 at an attack angle of 21. 8 degree is simulated by our program. Then, using the visualizing program, we map the figures of space streamlines, cross streamlines near the vortex axis, three dimensional vortex lines, cloud atlas for pressure and vortex and targer of particles.

在这一章里，我们先用所建立的计算软件数值模拟了来流马赫数为0.8、攻角为21.8°的三角翼的流场，之后以拓扑分析结果做指导，研制了一套数值显示流场、旋涡结构的软件，用该软件我们绘制了跨音速三角翼背风区涡轴附近截面流线、空间流线、三维涡量线、压力和涡量云图以及粒子屏痕图。

We also using numerical simulations to exam the optical properties of the diffractive structures, and theorically explain how the diffractive can work as a PBS, and also anchoring LC molecules.

在模拟方面，本论文利用三种不同的数值方法(FEM、FDTD、RCWA)进行光学模拟，并与实验进行对照比较，除此之外也将数值模拟视为是设计与改良绕射结构的重要工具。

The calculated results based on the pressure-dependent spall porosities given by Tonk et al and Cochran et al are consistent but different from the calculated results based on Thomason's stress-dependent spall porosity.

Cochran等给出的依赖于压力的层裂空隙度方程所作的一维层裂试验数值模拟结果基本一致，而与基于P.F。 Thomason给出的依赖于应力的层裂空隙度方程所作的相应数值模拟结果有明显差异。

By analyzing the general features of aquifer, a new concept of "the flow transfixion" was introduced, and the interaction between the flow transfixion and the heat transfixion and great significance of the flow transfixion to projects were analyzed.

通过分析含水层储能的一般特点，提出流贯通，分析流贯通和热贯通的相互作用、相互影响及对工程实际的意义，并基于地下水水热运移的基本原理，建立地下水流动数值模型，在此基础上对沈阳某场地水源热泵工程的运行进行流场及温度场的数值模拟分析，给出产生流贯通的依据，进而研究流贯通对热贯通的影响，并为该地区的地下水源热泵工程设计提供一定的参考。

Based on the field investigations of Indiacharcial trema root morphology, one can establish a 2-D numerical model of soil/root system to simulate the pull-out test at field site.

依据山黄麻现地调查之根系形态，吾人可建构含根土之二维数值模型并进行现地根系拉拔抗力试验之数值模拟。

Compared with the result of the soild model, it is found that the two results have great coherence. So it is feasible to take the shell model for numerical analysis of trussed combination arch bridge.

论文最后建立了清水大桥板壳有限元模型并利用该模型对该桥的恒载作用工况进行了数值分析，通过与实体模型的结果对比发现，两种模型的计算结果具有比较好的一致性，因此可以利用板壳模型对预应力桁式组合拱桥进行快速、准确的数值分析。

By usingthe dynamica l programming method, the optima l investment portfolio andconsumption policies for one kind of typica l utility function case areobtained,then we make numerica l simulation for it and get the numerica lsolution.

然后运用动态规划方法，对于一类特殊的效用函数情形，求出了最优投资组合及消费选择的显性解，并进行数值试验，得出了值函数的近似解，最后将值函数的解析解和数值解进行比较，得到了相对误差示意图。

In the simulation of gas flow, the finite volume method is selected. The three-dimensional time averaged N-S equation, the RNG k -ε turbulent model and the mixed mesh are used. Then the Lagrange particle track model and the uniphase coupling method are used to simulate the gas-solid two phase flow field in the centrifugal fan.

在气相流场的数值模拟中采用了有限体积法和混合类型的网格，以三维时均N-S方程和RNGk-ε两方程湍流模型为基础，利用SIMPLE算法，对离心式通风机进行了内部流场的数值模拟。

In the paper the time marching method is used to solve the control equations and a computational analysis of the flow field in a unshrouded impeller is presented.

中文摘要：本文利用数值计算方法对一带分流叶片的离心压气机工作轮内部三维粘性流场进行了数值模拟。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。