流体力学

Lasers characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

Laser's characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

For there is no concrete mathematical expression to describe its complicate inner working process and theoretical calculation, and the movement of piston is a kind of nonlinear variable accelerated motion, we have to resort to computer technique to do theoretical research work.

油压夯管锤是高能量输出的油压马达，其工作性质是建立在流体力学、液压传动、运动学、动力学、机械学、波动力学等多学科基础上的流体机械，其内部工作过程和理论计算比较复杂，没有显示的数学表达式，而活塞的运动又是一种非线性的变加速的运动过程，因而，其理论研究必须借助电子计算机。

The main purpose of this thesis is to simulate the accretion disk of a protostellar.

这篇论文的主要目的是用流体力学方法模拟在一个原恒星的吸积盘中加入一颗行星后吸积盘的演化过程。

This paper focuses on the application of hydrodynamics and magnetohydrodynamics to solar oscillations and accretion process and outflow in star formation.

本文着重讨论了流体和磁流体力学在日震学方面和恒星形成中吸积和外流这两方面的应用。

To analyze the thermal safety of Al/AgO battery in torpedo tube after launching failure, numerical simulation of the conjugate forced convection heat transfer was conducted in the condition of launch failure and battery activation by using the computational fluid dynamics software FLUENT.

为分析鱼雷发射失效后Al/AgO电池在发射管中的热安全性，基于计算流体力学方法，应用计算流体力学软件FLUENT，对鱼雷发射失效后Al/AgO一次电池激活情况下管内强制对流耦合传热进行了数值模拟。

But the rheologic study of LCP is just about ten years.

由于本构方程理论是液晶高分子流变学及其流体力学的理论基础，所以建立和发展适合液晶高分子的本构方程是研究液晶高分子流体力学和流变学的首要任务。

Allthe models satisfy the precision and strength requirements.6 CFD is employed to simulate the application of tube with static mixer in anindustrial furnace, in which a tube model library containing the geometricalmodel and physical model in common use is build.7 Disturbed flow in tube with static mixer is demonstrated in an experimentsystem designed and manufactured by the author. Fluid field is measured byuse of seven-hole probe method. An experimental system are designed and builtfor this purpose.

建立了一个由模型的几何、物理参数组定义的常用模型的模型库，提高计算效率，缩短放大研究周期。6、提出了基于速度的流场扰流效果的评价方法，将之应用于流场设计和扰流元件结构优化的评价中，获得了量化的评价结果。7、设计、制造流动显示实验系统，验证静态混合式炉管对流体的扰动效果：采用七孔探针流体力学实验方法，在流体力学实验测量系统中，对静态混合式炉管模拟流场的三维速度分布和流体、压力降等进行测量。

Qualitative results are obtained by using this method in fluid fielddesign and structure optimization of disturbing elements.5 Experimental models are made efficiently and accurately by RPM method. Allthe models satisfy the precision and strength requirements.6 CFD is employed to simulate the application of tube with static mixer in anindustrial furnace, in which a tube model library containing the geometricalmodel and physical model in common use is build.7 Disturbed flow in tube with static mixer is demonstrated in an experimentsystem designed and manufactured by the author. Fluid field is measured byuse of seven-hole probe method. An experimental system are designed and builtfor this purpose.

建立了一个由模型的几何、物理参数组定义的常用模型的模型库，提高计算效率，缩短放大研究周期。6、提出了基于速度的流场扰流效果的评价方法，将之应用于流场设计和扰流元件结构优化的评价中，获得了量化的评价结果。7、设计、制造流动显示实验系统，验证静态混合式炉管对流体的扰动效果：采用七孔探针流体力学实验方法，在流体力学实验测量系统中，对静态混合式炉管模拟流场的三维速度分布和流体、压力降等进行测量。

Based on the integration of the results of acoustic andfluid dynamic analysis, this paper points out that synthetical acoustic and fluiddynamic performance of muffler can be obtained by using square expansion chamber,by stringing together several podgy expansion chambers, by applying noise absorbingmaterial on chamber walls, by making chambers and pipers co-axial, by adding filletson the end of intruding pipes, and by making the diameter of outlet pipe a little greaterthan the diameter of the inlet pipe.

通过综合流体力学和声学有限元两方面的分析的结果，指出了采用方形扩张腔，采用多个短粗扩张腔串联，扩张腔壁面附吸声材料，使各管道同轴，在插入管端口加上圆角，并且令出口插入管管径略微大于入口插入管管径可以使消声结构获得最佳的声学和流体力学综合性能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。