模拟实验

This paper measured the constitutive relation of soil in the condition of the low stain-rate by Split Hopkinson Press Bar technology. It offers the reference for study in high stain-rate in the future. And simulated the explosion between soil and concrete by finite element dynamic analysis software LS-DYNA3D. Finished the numerical simulation for power of exploding between soil and concrete in different position of detonator and different scale model. Set out the curves of displacement, velocity, acceleration and pressure of different position. Obtained the destructibility of concrete target in different explosion condition. It offers data reference for theory studying and engineering designing.

本文首先利用分离式Hopkinson压杆实验技术测定了土在低应变率下的本构关系，为以后进行较高应变率下的研究提供了参考；后面着重利用三维显式非线性有限元动力分析软件LS-DYNA3D对土壤混凝土介质中的爆炸进行了数值模拟，采用土壤混凝土分层介质模型，完成了不同装药位置、不同缩比模型的混凝土模型中爆炸威力的数值模拟，测定了不同情况下的压力曲线及典型位置的质点位移、速度、加速度和压力，得出了混凝土靶在各种不同爆炸条件下的破坏情况，为理论研究和工程设计提供了数据参考。

The Large eddy Simulation is used to simulate the flow field and cavitation on an Orifice Energy dissipator. The characteristics of cavitation was analyzed. The calculated and the measured pressure distribution and the cavitation were in agreement.

采用大涡模拟方法对消能孔板流场及空化现象进行了数值模拟，研究分析了消能孔板空化特性，计算所得的压力分布及空化特性与减压模型实验结果进行了比较，二者符合良好。

The downslope height of gas/water contact with different permeability, different gas injection rate and different actuating pressure gradient with gas flooding are calculated.

实验拟合了气驱水启动压力梯度，计算了不同渗透率、不同注气量、不同气驱水启动压力梯度下的气水界面下移高度，应用CMG数值模拟软件，进行了注气抑制底水锥进的模拟研究。

The combination is proposed in this paper to supply some necessary parameters for simulation of Eastman waste water process.

针对过程模拟参数的来源不足问题，本文给出了模拟计算和实验分析相结合进行设计的思路。

The discharge mechanism of the avalanche in these gases has been analyzed. The variation patterns and impact factors of their effective ionization coefficients, electron drift velocities and diffusion coefficients have been given. The transportation of electrons is closely related to that of ions.

为验证模拟结果的正确性，本文采用PT法获得的SF〓／N〓、SF〓／CO〓和SF〓／Kr的实验结果和模拟结果进行对比，分析了它们的电子崩发展特点，给出了其有效电离系数、电子漂移速度和扩散系数的变化规律以及影响因素。

In order to overcome the wet etching disadvantage and to minimize the additional waste chemical treatment cost, therefore the purpose of this thesis is to study the customization of the batch type plasma dry etcher for power diode process, to analysis the etching mechanism and build up the simulation model for the distribution of plasma power density that will be fitted with the measurement data.

在此前提下，本论文将以客制化的多片式电浆蚀刻机为研究主体，分析其蚀刻机制并建立电浆能量密度的分析模拟模型，并以实验数据做比对，藉此建立模型模拟数据的可信度。

The application of flamelet model based on level set in premixed turbulence combustion;2. A methane turbulent non-premixed flame has been simulated numerically by the combination of laminar flamelet model and presumed probability density function.

将小火焰模型和假定的PDF方法相结合，模拟甲烷湍流射流扩散火焰，稳态火焰面结构由层流小火焰数据库得到，采用详细化学反应机理描述甲烷的氧化和NO以及碳烟的生成，数值模拟结果和实验数据吻合较好，说明小火焰模型可以较准确地计算出扩散湍流火焰中的燃烧过程。

The deep UV lithography is also studied by using corrected Fresnel diffraction model.

进行了深度紫外光刻模拟，并对模拟结果进行了实验结果验证。

The hydraulic loading system is developed and used to study the frost heaving characteristics of the subgrade soils under dynamic loading in closed system and open system . On the base of these work, the conclusions are as follows:1. Because of the the fine-grained fill, the frost deformations of Beijing-Baotou railway subgrade and Baotou-Lanzhou railway subgrade are holistically irregular, and great discrepancies exist among the frost heavings of subgrade at different sections.

本文根据冻害较严重的京包铁路、包兰铁路的气候、地质条件的调查和路基冻胀变形监测，结合路基土的性质对京包铁路、包兰铁路的冻害给出了评价；为了模拟振动荷载作用下土的冻胀，研制了液压动力加载系统；在室内采用实验方法对列车动荷载作用下包兰线路基粉质土在开敞、封闭系统下的冻胀特性进行模拟。

Comparisons of flow curves, microstructure evolution, distribution of average grain size and number of grain side in final microstructure show that the simulated results agree very well with the experimental ones, suggesting that the present CA model is feasible to study the DRX process of AZ91 alloy.

对比分析应力—应变曲线、组织演变、稳态组织中的平均晶粒尺寸及晶粒边数分布，模拟结果与实验结果的良好一致性表明本文作者提出的元胞自动机模型可以用于AZ91合金动态再结晶过程的模拟研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷