流进

basic flow patterns in 3 types of suction boxes are studied respectively by both numerical calculation and model test, and the essential hydraulic indexes are listed. the boxes, including elbow inlet, bell-like inlet and dustpan-like inlet, are usually applied for vertical pump of low head.

采用数值计算和模型试验的方法分别研究了低扬程立式泵装置常用的肘形钟形和簸箕形等三种形式进水流道的基本流态，给出了表达这三种形式进水流道水力性能的主要指标。

Product brief introduction: GXF is inclined shed fan to be bosomy shape structure, the characteristic with its small imports and exports expedited the velocity of flow of air current, pressure coefficient is tall, shed fan with general axis below the circumstance of equal opportunity order, its discharge pressure all is more than general axis to shed the discharge of fan, pressure.

制品介绍：GXF斜流风机为鼓型构架，其进岀口小的特征加速了气流的流速，压力参数高，同一般的轴流风机一样机号的境況下，其访问数量压力均大于一般轴流风机的访问数量、压力。

GXF-I conduit is inclined sort fan engine order: 2#- 8# wind force: 200 - 25000m3/h total pressure: 54 - 1200Pa characteristic: Use impeller of canister of bosomy form wind, cone-shaped hub, wind pressure tall, wind force big, noise province of report of low, bad news, structure is compact wait for an advantage, horizontal, vertical is installed all but, most apply to straight conduit and pressurization to send a platoon wind, material can use glass reinforced plastics or steel is made, also can make a place with a draught of housetop type, pass in and out can add set muffle application: Industry and civil architectural send a wind the system.

最新供应专业生产供应管道斜流风机。 GXF-I通道斜流风机机号：2#－8#风力：200－25000m3/h全压：54－1200Pa特征：使用鼓型风筒、锥型轮毂叶轮，风压高、风力大、噪声低、耗电省、构架拮据等优势，卧式、立式装置都可以，最适用在直通道和加压送排风，材料可用玻璃钢或者钢制造，亦可作成屋子顶式、进岀风口可加设消音器运用：工业制造业和民用健造的送排风体系。

Apply Genetic Algorithm and CFD technology, in this paper,to calculate the main parameter of WPC96's waterjet propulsor and simulate the flow of the water in waterjet inlet.In addition,analyze the factors that can affect waterjet system efficiency, such as K ,mostly geometry parameters,IVR.

在此基础上运用MATLAB遗传算法和CFD软件——FLUENT对喷水推进器主要参数优化计算以及进水管流场数值模拟进行了研究，并针对影响喷水推进器进水管系统效率的主要参数(如进水速比IVR、喷速比等)进行了分析。

Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins;2. Traditional sediment tank has been improved in three aspects by putting an adjusting flow wall in the entrance of water, a spillway trough on spillway crest along the flow direction, redesigning the flush device and an auxiliary fl ush facility.

通过在沉砂池的进水处加调流墙、在溢流堰上沿水流方向设溢流槽、对排砂装置进行改进以及设置辅助冲砂设施三个方面对传统平流式沉砂池进行了改进，设计提出了一种新型平流式沉砂池，可以大大提高沉砂池的沉淀效率，特别是对细颗粒泥砂的沉淀具有很好的效果。

This paper gives the distribution of the Peynolds stresses, which shows that the flow near the wall at the exit is obviously nonisotropic and the maximal turbulence intensity is enough high to impact on the matching of the intake and the engine. The unsteady characteristics of the flow evince that the flow doesn't separate obviously.

出口截面上雷诺应力分布表明：该进气道出口流场主流方向的紊流强度较大，最大值已达8%以上，这给进／发匹配造成影响；正雷诺应力和剪切应力沿径向和周向的分布特点则说明进气道出口核心流区域流动基本是各向同性的，然而在近壁区却表现为明显的各向异性。

82 Times as high as the flow rate at the inlet; the velocity profile in the lower region is relatively uniform, and changes at the exit from a parabolic shape towards a plug flow as Re increases; The strong circulating flow in the upper region is very favourable to evaporization of heated fluid because it not only forces all the heated fluid to flow through the liquid surface and, therefore, to evaporate effectively, but also causes a large part of fluid to recirculate to the liquid surface and, therefore, to get a second opportunity of evaporization. In addition, the uniform velocity profile in the lower region is also favourable to crystallizing process.

轴向进料蒸发室进口管侧上方有强烈的循环流存在，循环流流量为进口流量的1.48～1.82倍；循环流下部流速分布较均匀，出口区流速在低Re时为抛物线分布，高Re时接近活塞流；强烈循环流的存在不仅迫使加热流体全部流经液面及其附近进行充分蒸发，而且之后还使相当部分流体再次循环回到液面及附近进行二次蒸发，对蒸发操作十分有利；蒸发室下部流速的均匀分布亦有利于蒸发结晶过程。

The 3D-flow field in a bell-shaped suction box of a large pumping station of the South-to-North Water Transfer Project is simulated applying Reynolds-averaged Navier-Stokes equation, the standard turbulent model, and SIMPLEC algorithm.

结合南水北调某大型泵站钟形进水流道的设计，采用雷诺平均纳维-斯托克斯方程和标准湍流模型，运用SIMPLEC算法，模拟了钟形进水流道2种设计方案在对称进水工况和偏流进水工况下的三维流场。

Methods For example simulated habitation cabin on ground, the air flow field distribution of habitation cabin was supplied through 2 modes, step air supply channel and perforated plate, and was analyzed with digital simulation and experiment. In addition, effect of inter-module flow on flow field was studied.

以某地面模拟居住舱为例，采用实验和数值模拟的方法给出梯形送风管道及孔板进风支管出流两种方案下居住舱的流场分布，并预测了舱段间回风对舱内流场的影响。

Through the analysis of intake valve exit three dimensional flow field and its angular momentum flux of four valve diesel engine under different plans, the law of in cylinder air angular momentum flux by the influence of disturbance between two intake ports was discovered.

利用测得的四气门柴油机气门口三维流场，分析了进气门出口流场产生的缸内空气动量矩流率，揭示了四气门柴油机两进气道的相互干扰对缸内空气动量矩流率影响的变化规律。

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