固流体

In the numericalstudy, three-dimensional elastodynamics equations and Morison equation are applied tosimulate the time histories of dynamic response of submarine pipelines suspended over flatbeds sucessfully. The three-dimensional interaction of pipeline and internal flow isnumerically simulated by applying the iterative computation to the fluid-structure interfacesand using the elastodynamic equation and the incompressible fluid N-S equation andcontinuity equation.

在数值研究方面，本文利用三维弹性动力学方程，结合莫里森方程，较好地模拟了规则波浪作用下近壁悬跨弹性海底管线动力响应过程，结合不可压缩流体N-S方程和连续方程，进行管线及其内部流体的三维流固耦合数值计算，基于数值计算结果探讨内流管线系统的动力特性和管内流体特征。

At the latter consolidation stage, it was assumed that the water flow only depended on water pressure and was not influenced by the air. Then the independent continuity equation of water was set up to solve variation of water pressure with time. Besides, the water and air were regarded as mixed fluid, and the continuity equation of mixed fluid was set up.

在其后的固结过程中，假定水的流出仅仅取决于水压力，不受气的影响，单独建立水的连续性方程，解水压力随时间的变化；又将水和气看成混合的可压缩流体，建立混合流体的连续性，解混合流体压力随时间的变化。

The results are identical with the variation of the factual size of particles. By the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of Circulating Fluidized Beds riser.We successfully apply the two-fluid model and kinetic theory of granular flow studying the two dimensional dense gas-solid flow characteristics in the large scale circulating fluidized beds and the cold experimental system with PIV.

在对高浓度气固两相流的研究中，根据FLUENT软件现有的条件和解决工程实际问题的需要，采用单气固相双流体欧拉模型，采用模拟紊流固粒流中普遍接受的方法"颗粒流的运动理论(kinetic theory of granular flow)"，对大尺度循环流化床进行了二维数值模拟，与他人数值模拟结果和实验结果进行了对比，检验模型的准确性。

In the same time, the paper used simulating and calculating busibess software of large scale fluid engineering to simulate and study the experimental device, and this paper combine the mechanical drawing software Solidworks and Gambit which is pretreatment software of simulating and calculating of fluid to plot out cell, and also adopted the two-fluid of gas and solid of Eulerian model, so it conquered the limitation of unideal simulating results because of the difficulty of geometrical modelling and the unhappy choice of model.

同时本文运用大型流体工程仿真计算商业软件Fluent对实验台进行了模拟研究；联合使用了机械制图软件solidworks和流体仿真计算前处理软件gambit进行了网格划分，采用了气固双流体欧拉模型，克服了以往由于几何建模困难和模型选择不当问题而导致模拟结果不理想的局限。

Under the new boundary conditions related to viscous fluid, the variational equation of beam bundle fluid-solid coupling system related to viscous fluid is reached.

3在流体有粘的假设下，本文为随后的数值分析做了一些基础性的工作，在有粘流体相应的边界条件下，得到了粘性流体下管束流固耦合系统的变分方程。

The experimental products include crystal phase quartz, feldspar (alkila-feldspar, albite, K-feldspar), zinnwaldite and topaz, a melt phase and a trace vapour. The solid products were been studied by optics method, electron microprobe and X-ray analysis. The results show that liquidus temperature raises slightly and solidus temperature falls down obviously and that the upper temperature limit raises for the stability field of quartz and topaz, and falls down for the stability field of alkila-feldspar as F contents in crease.

实验淬火产物包括结晶相石英，长石(碱性长石，钠长石、钾长石)，铁锂云母和黄玉及玻璃相和微量流体，对固相淬火产物进行了系统和详细的显微观察及电子探针和x射线分析，研究了F对钠长花岗岩液、固相线温度、相关系和相组合的影响和含F钠长花岗岩的结晶序列和熔体演化、F在流体和熔体之间的分配及F对花岗质熔体结构的影响，对含黄玉矿物组合进行了一系列热力学矿物平衡计算，获得如下重要结论

Numerical simulation of micropolar fluids elastic lubrication with mixed friction in mechanical seal;2. The basic line contact elasto-hydrodynamic lubrication equations for micropolar fluids were developed on the basis of the theory of micropolar fluids.

应用微极流体理论，考虑流体的可压缩性，建立线接触微极流体动力润滑的基本方程，进行固液两相流体稳态流动弹流润滑数值分析，获得了润滑油膜压力、形状以及摩擦力分布，分析了微极参数对润滑性能的影响，并与不可压缩流体结果进行比较。

Based on equations of continuity and momentum balance in the liquid-solid circulating moving bed reactor,a stress distribution model was established to study stress distribution and flow patterns in the reactor,which took into account weight of liquids,buoyancy of liquids to solids,supporting force of wall in conical bed and friction force of wall.

为研究循环移动床反应器的应力分布和颗粒流动状态，建立了由流体相及固相质量连续方程和动量守恒方程组成的循环移动床反应器模型，考虑了流体质量、流体对固相产生的浮力、锥形床边壁对颗粒的支撑作用以及壁面摩擦力的影响。

Besides being affected by ferromagnetic basic carrier liquid viscosity and magnetic solid granule in ferromagnetic liquid, ferromagnetic fluid viscosity is primarily concerned with additive magnetic field intensity and temperature.

分析了影响磁流体粘度的因素并导出了其可控参数与磁流体粘度系数间的函数关系；说明磁流体粘度除了受磁流体基载液粘度和磁性固相纳米颗粒的影响外，还与附加外磁场强度和温度有关，其中外磁场强度 H的影响要大于温度 T的影响，并指出了三种可能的控制外磁场强度的方

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐