查询词典 flow of scalar field

Through the analysis of different cross section flow field in cylinder of two-valve and four-valve diesel engine, the following conclusion can be obtained: The formation of intake swirl of two-valve diesel engine mainly is effected by an intense air flow ring zone near the radius from valve axis to cylinder axis, as the flow progresses down through the cylinder, the ring zone air flow expends to both side and finally forms an unified rigid rotating swirl motion.

2号缸盖的螺旋进气道产生的绕自身气门轴线的动量矩比1号缸盖的大，且切向气道的径向速度在前峰面上的数值比1号缸盖的速度数值大很多，因此，两进气道组合后的动量矩损失也大，所以虽然2号缸盖的两个进气道单独的涡流比都高于1号缸盖的两个进气道，但组合后的合成涡流比却是基本相同的。

This paper explored successfully the qualitative and quantitative analysis of flow field in pipeline imposed on ultrasonic flowmeter. With the installation of the flow conditioner, the non-symmetry flow and swirl flow of disturbant factors were effectively reduced.

本论文成功的探讨管流场对超音波流量计定性与定量的影响，流场因为90度弯头、T型管、…等影响流场稳定的因素存在，若不装整流器，所产生流场的不对称性及涡漩，将会持续到43.5D以上。

Accoding to the gained velocity and pressure fabric, fluids' flow mechanism in the flow channel was researched, and the effects of changes of many parameters such as geometical, material and processing parameters on the flow field's pressure and velocity fabric in the flow channel of pipe die for extrusion were analyzed and discussed.

代入管材常用挤出塑料的参数，利用ANSYS有限元软件进行了三维流场计算，对物料在流道内的流动过程进行了模拟，求出了流场的速度分布和压力分布，研究了物料在机头流道内的流动机理。

That is that information processing of neural networks is viewed as the composition of the two steps: field organization and field action, in which, field organization transformation converts input pattern into relevant structure representation, extracting the underlying architecture features and forms a architecture representation in action transformation space; The field action transformation converts the features representation into expected output. In strategies, we use the dual affine coordinates in dual flat manifold as way of representation of field organization system and field action system, which established a theoretical framework of analysis the coupling mechanism of information processing from the view of point of structure representation and model generation.

在具体人工神经网络结构描述的策略上，利用对偶流形空间上的对偶仿射坐标概念分别表示场组织变换系统和场反应变换系统，建立起从问题的结构表示和模型生成两种观点来分析信息处理的理论框架；分析了有监督和非监督学习人工神经网络模型在神经场变换机理下的形式化描述。

Furthermore, as stresses in the stress field influence the value of seepage coefficient k, which will results in the change of seepage field in the end, while on the other hand, the seepage field also has an effect on the stress field because of seepage forces. Based on the coupling model of seepage field and stress field, a program by finite element method is developed in this paper. And the comparison of results of the program and criterion method with that of test shows that the test results are reasonable, which can be referred to analyze the causes of dangers, evaluate degree of safety of the body and foundation, and design and optimize the measures of seepage control.

此外，考虑到应力场中的应力会改变土体渗透系数进而影响渗流场、而渗流场也因其产生的渗透力会导致应力场发生变化，两者之间存在耦合作用，本文基于渗流场应力场耦合分析的数学模型编制了渗流计算有限元程序CCOSAS1.0，其计算结果和采用规范方法所获得的解答与实测值的对比分析表明，该规律合理且具有一定的代表性，可用以分析险情发生原因、评价堤身堤基安全状况及设计与优化渗流控制措施。

The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.

本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。

From the formula for the field strength of a point charge,by means of the transformation of the field strength tensor in the special theory of relativity,the laws of electrostatic field and magnetic field of steady current s are derived in this paper to give the students a better understanding of the consistency of electric field and magnetic field.

从点电荷的场强公式出发，根据狭义相对论中场强张量的变换，推导出了静电场和稳恒电流磁场的诸定律，使学生对电场和磁场的统一性有了更为深刻的认识。

In the quasi-static area, the field distribution is almost the same as the static field; in the high frequency section, many high order modes occur, but the field uniformity is relatively better, and the field distribution is mainly the vertical polarization field; in the out of the vertical polarization area, the effect of high order modes is very serious so that the field distribution lost the property of vertical polarization.

在准静态区，场分布基本上与静态场相同；在高频区，出现了明显的高次模，但场均匀性较好，场分布主要是垂直极化场；在非垂直极化区，高次模影响非常严重，场分布失去了垂直极化的特性。

The use designs the digital cocurrent current supply and the probe head removable intelligence magnetic field measuring instrument to the Helmholtz coil magnetic field key point is the spool thread magnetic field strength survey, drew up the actual field intensity and the theory field intensity graph, has confirmed the magnetic field principle of superposition.

利用所设计出来的数字直流电流源与探头可更换的智能磁场测量仪对亥姆霍兹线圈磁场重点是轴线磁场强度的测量，绘制出了实测场强与理论场强的图表，验证了磁场叠加原理。

Then direct against the concrete conditions of the oil field of Xinjiang, influencing the important factor that the oil gas operated the cost in the oil field of Xinjiang to be analyzed at first, then analyzing in the face of the domestic and international oil field before combining provide the oil field oil gas in Xinjiang and operate concrete method and measure that the cost controls, and combine the change law of petroleum gas cost in the past 10 years of big company of foreign petroleum Oil field Company oil gas cost control what time does it get helpful enlightenment out of about Xinjiang, providing the incentive mechanism of operating the cost of oil gas of oil field company of Xinjiang to design finally.

然后针对新疆油田的具体情况，首先对影响新疆油阳油气操作成本的重要因素进行了分析，然后结合前面对国内外油田的分析给出新疆油田油气操作成本控制的具体方法和措施，并结合国外石油大公司在近十年的石油天然气成本的变化规律对新疆油田公司油气成本控制提出了几点有益的启示，最后给出了新疆油田公司油气操作成本的激励机制设计。

The results are in agreement with the previous work and offer a theoretical basis for the application of Zinc blende CdTe.

计算结果与其他文献结果吻合较好，为闪锌矿型CdTe的应用提供了理论依据。

In addition, around 300 tigers live in unprotected area in Sumatra.

此外，生活在苏门答腊的大约300只老虎未受到保护。