流体的

This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.

本项研究以热力采油的主要机理为基础，充分考虑在粘性力、重力和毛管力作用下油水气三相流动，考虑温度对各种流体和固体介质物性的影响，考虑每一组分中汽液两相的相平衡，考虑热在地层中的传导、对流和辐射以及上下盖层的热损失，利用热力学第一定律、质量守恒定律和流体迁移定律，建立了正确可靠的注蒸汽数学模型；在对数学模型进行空间离散时，利用控制有限体积积分法，对以往的九点差分近似作了合理的改进，使其具有较高的差分近似精度：结果表明，该公式的近似精度要比以往文献中所给的九点差分近似精度高，可以认为，在油藏数值模拟中，如果遇到非均质情况，使用这种九点差分近似更合理。

The activated or leached process and their influence elements are studied by 1DREACT software package of coupled mass/heat transfer and chemical reaction dynamics of water-rock interaction, according to the geological and geochemical characters of fine disseminated gold deposits.(1) Water-rock reaction time is not the important influence element of activating gold;(2) At first, activating capability of hydrothermal solution increases with the increasing of total sulfur activity; after lga〓≥-4, the content of activated gold in solution is mainly related to original content of gold in wall rock, and does not visibly dependent on total sulfur activity.(3) It is a complicated nonlinear process of influence of activating gold capacity of hydrothermal solution with the change of temperature, in general, 220 ℃ is most favorable to gold activation.(4) The influence of oxygen fugacity on gold activation has a multiple functions coupling nonlinear effect, in general, Igfo〓=-41 is most favorable to gold activation.(5) Solubility of gold in fluid decreases with the increasing of velocity of flow, the product of velocity and aurous solubility reaches maximum when velocity is 0.2～0.5m〓m〓. yr〓, i. e. this scope of velocity is most favorable to gold activation.

利用1DREACT水-岩相互作用反应-输运耦合动力学软件包，根据微细浸染型金矿床地质地球化学特征，计算机模拟研究了金的活化、浸取过程及其影响因素，发现：(1)金活化过程中水-岩反应时间不是其主要制约因素；(2)热液对金的活化能力开始随总硫活度的增高而增高，当lg a〓≥-4后，热液中活化金的含量将主要与围岩中金的初始丰度有关，而对总硫活度无明显依赖关系；(3)温度对热液浸金能力的影响是一个复杂的非线性过程，总体而言，220℃最有利于金的活化；(4)氧逸度对金活化的影响呈现出一种多因素叠加的非线性效应，总体而言，lgfo〓＝-41最有利于金的活化与浸取；(5)流体中金的浓度随流体流速的加快而降低，流速与金浓度的乘积在流速为0.2～0.5m〓m〓。yr〓时达到极大，即0.2～0.5m〓m〓。yr〓的流速范围最有利于本类矿床的金的活化。

We can compute three dimensionalvelocity distribution on a planar domain of flow field based on conventional ParticleImage Velocimetryand 3D reconstruction theory of stereophotogrammetry.

在流场空间两个不完全交叠的体积元(映射为两个摄影机象平面上以同名点为中心的两个相同大小的判读小区域)中的示踪粒子的统计性质都能同样表征这两个体积元公共中心的流体运动的假设下，PIV技术与体视三维重建理论的结合，可以将原PIV技术中二维统计平均的概念扩展为三维统计平均，并且在确定体积元公共中心位置之后，直接实现空间流体体元的三维位移重建。

It show that interstitial fluid pressure changes its sig n twice within one arteriolar vasomotion period and it is therefor not important that interstitial fluid pressure is a little higher or lower than atmospheric p ressure; arteriolar vasomotion can periodically result in lymph formation and in terstitial total pressure plays an important role in this procedure; local regu l ation of microcirculation can meet metabolic need to some extent in the form of dynamic equilibrium.

利用解析法与有限元法相结合的&影响线算法&，求解了第一部分中建立的数学模型，分析了微循环系统动力学的若干重要问题，表明在微动脉自律运动周期内，间质流体压力将两次改变符号，因而某些理论中十分强调的间质流体压力是略高于或略低于大气压力的问题显得并不重要；微动脉自律运动能导致周期性的淋巴形成，间质总应力在这一过程中起着重要作用；微循环局部调节可以以动态平衡的方式在一定范围内满足代谢的需要。

The relation between the movement parameters in the flow field of jig could be obtained by the Navier-stockes equation of fluid dynamics. The fluid in different jig structure dimension and shape could be calculated and diagrammed by use of calculate fluid mechanics and potential motion theory. The flow field and streamline of jig at different case are expressed vividly, which could provide rational basis for selecting and designing jig structure.

由流体运动的Naver-Stockes方程得到跳汰室内的流场运动参数间的关系，用势流理论对运动流场进行研究，通过计算流体力学方法对流体运动参数在结构不同的跳汰机的跳汰室内的流场进行了绘图，形象地把不同结构的跳汰室的流场、流线体现出来，可为合理选择跳汰机结构提供依据。

Fluid pattern is suitable for NMR porosity calibration in Berea sandstone as well as terrestrial sediment sand with little shale content and well sorted. Ceramics reference material is applied to shaly sand with average sorted. Both fluid pattern and solid ceramics material are not suitable for calibration in sandstone sample with high clay content, complex lithology with rich paramagnetic materials.

流体标样适合于贝瑞砂岩、陆相沉积分选好、泥质含量低的砂岩NMR孔隙度的标定；固体陶瓷标样适合于分选中等的泥质砂岩NMR孔隙度的标定；对粘土含量高的砂岩、含顺磁性物质的砂岩和砾岩等复杂岩性岩样，用流体标样和固体陶瓷标样标定都得不到准确的NMR孔隙度值。

During the investigations, some basic research methods and theories such as mending the end section profile of the screw arbor gear applying the conjugate principle, the milling outline for the screw arbor profile cutter by kineto-synthesis method, establishing the dummy variable model of the screw arbor by the CAD method, the theory of the distributing of the fluid pressure on the screw, the precision analyzing and computing screw profile by the dummy model and FEM method are established.

在研究过程中确立了一些基本的研究方法和基本的理论。如应用共轭原理改进螺杆端截面齿曲线的、利用运动合成的方法研究螺杆成形铣刀廓型、应用计算机辅助设计的方法建立螺杆的虚拟模型、应用牛顿流体理论研究螺杆中的流体压力分布、应用有限元分析计算方法对螺杆做精确分析计算。

In some conventional fan revolution speed control methods, variable control of the number of revolutions of a cooling fan is performed by a process comprising steps of detecting an actual temperature of cooling target fluid, ie fluid to be cooled by the cooling fan, such as hydraulic oil and circulating radiator cooling water for cooling an engine (such cooling water is hereinafter referred to as coolant), determining a target fan revolution speed by a system of a proportional integral control unit based on the difference between the actual temperature detected and a target temperature, and changing the fan revolution speed based on the target fan revolution speed so as to bring the actual temperature of the cooling target fluid down to the target temperature.

在一些传统风扇转速控制方法，控制变量的数目革命的一个冷却风扇，是由一个过程组成的步骤检测到一个实际温度冷却目标流体，即流体被冷却，由冷却风扇，如液压石油和散热器循环冷却水用于冷却发动机（如冷却水是以下简称为制冷剂），确定一个目标风扇转速由一个系统的比例积分控制单元基础上的差异，实际温度检测和目标温度，并改变风扇转速的基础上，针对风扇转速，使实际温度的冷却液指标下降到目标温度。

This article mainly is analyzed the empirical datum of the Heat Transfer in the High Gravity Rotary Device of Countercurrent Flow, and discussed the heat transfer influence, example for intake and outtake temperature of cold and thermal fluid, current capacity, rotational speed and so on.

本文对逆流超重机的传热进行了研究，通过查阅大量关于超重力技术和直接接触传热的资料，综合分析出超重力场下的传热属于冷热流体直接接触的对流传热。流体在高速旋转中产生的强大离心力即超重力，使气液的流速及填料得比表面积大大的提高而不液泛。

The development of new micro-analytical techniques, especially the synchrotron XRF, PIXE, LAM-ICP-MS, enables us to measure the concentrations of ore metals in fluid inclusions directly.

随着现代分析技术的发展，特别是同步加速器-XRF、PIXE、LAM-ICP-MS等的出现，使得我们可以直接测定流体包裹体的微量元素组成，取得了富气相的流体包体中Au、Cu、Mo等元素的含量显著的高于液相包体的重要发现。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。