secondary flow

Influence of gravity on secondary flow of particle phase in a square duct;

直方槽道中重力对颗粒相二次流的影响

The secondary flow in Newtonian fluid flow in annulus with the inner cylinder executing a planetary motion;

流体在内管做行星运动的环空中流动的二次流

The main advances on the secondary flow in electrostatic precipitators;

关于电除尘器内二次流的典型研究

Typical cross sections of the flow field were studied by the secondary current velocity vector-graph and contour of stream-wise velocity.

为了揭示复式断面横流环境中三维圆形水平射流的特性,运用Micro ADV测速系统对射流流速比为12的横流紊动射流进行了实验研究,给出了射流典型横断面二次流速度的矢量图和主流速等值线图。

The Launder and Ying algebraic Reynolds stress turbulent model with hybrid finite analytical method was applied to simulate the secondary current in the compound channel.

采用三维超声测速仪对非对称复式断面明渠水流流场特性进行试验研究,采用L-Y雷诺应力模型对水面和固壁边界条件进行有效地处理,结合混合有限分析法数值模拟了复式断面明渠二次流流动,和实验资料的对比验证了数值计算和边界处理技术的合理可靠性。

The Launder & Ying algebraic Reynolds stress turbulent model with hybrid finite analytical method is applied to simulate the secondary current and solute transport in the compound channel.

运用L-Y雷诺应力模型及对水面和固壁边界条件进行有效的处理,结合混合有限分析法数值模拟了复式断面明渠二次流流动及污染物的运移,探讨了沿自由水面横向和垂向的浓度及雷诺传质分布规律,分析了二次流对浓度扩散和紊动传输的影响。

Sep arated flow line and second flow are successfully captured in this experiment.

流动显示技术是流体力学和空气动力学研究中常用的重要实验手段,把流动显示实验方法中的油流显示技术应用到轴流风机内部流动研究中,成功地捕捉到了轴流风机中的流动分离线及其二次流动的流动现象。

This essay analyses the second flow phenomenon and its stability effect.

分析了二次流现象及稳定化效应，并结合二次流产生的条件，从理论上论证了二次流场稳定时的流场特性，这也是二相流体中颗粒沉降的最佳流场。

The development of second flow in impeller along streamline direction is studied and the forming reason for internal flow field characteristics of impeller is also analyzed.

用CFD手段对某小流量离心压缩机级流量系数进行了数值模拟,得出了叶轮内部流动的细节,考察了叶轮内部二次流沿流向的发展,并分析了叶轮内部流场特征的形成原因。

Under the hypothesis of steady uniform flow,the depth-integrated turbulence time-averaged momentum equation for the main flow direction is simplified by considering the effect of the vegetation on the flow as the drag force item as well as the secondary flows.

通过恒定均匀流的假设,对主流方向上的沿水深积分的紊流时均运动微分方程式进行简化得到了相应的控制方程,其中引入植被对水流作用的拖曳力项,并考虑二次流的影响。

Characteristics of boundary-layer separation, and mechanisms of secondary flows due to bending and non-circular cross-section effects in the pipe were examined.

本文通过试验量测了鹅颈型管道水流的三维流速分布 (不同层面和断面的纵向、垂向及横向流速分布 )与断面压力分布 ,剖析了鹅颈型管道的三维水流结构 ,揭示出鹅颈型管道边界分离的特点及二次流 (弯曲二次流及非圆形断面二次流 )的形成机理 ,提出了鹅颈型管道固有的水流型态 ,水力特性及概

The vortices structures of secondary flows and their developments in the cascade passage under the-33°and-8° incidences are studied in detail by the numerical simulation, analysis, and comparison.

本文应用TVD格式和Baldwin－Lomax代数紊流模型求解三维NS方程，对一个透平直列叶栅流场在两个不同的负冲角工况下进行了数值模拟，给出了叶栅马蹄涡及其分离鞍点、通道涡、角涡等二次流涡系的结构及其产生发展过程，并对不同工况下的涡系结构及冲角的影响作了详细的分析和比较。

Effect of the second airflow on the three-dimensional velocity distribution in the gasifier was analyzed.

介绍了一种新的分级气流床气化炉,并利用激光颗粒动态分析仪对分级气化炉模型内的流场进行了速度测量,分析了二次气流对气化炉内三维速度分布的影响。

Furthermore,the secondary flow structure is investigated.

在此基础上,研究其内部二次流动结构,得出了叶道内尾迹区域的存在与发展同二次流动有很密切的关系,尾迹区域的形成主要是叶片表面低能流体径向流动形成的。

Preliminary analysis of the aerodynamic characteristics of the island shaped blade,secondary flow and development of vortex and impact of tip clearance were conducted.

利用三维数值模拟方法对向心涡轮内部流动进行数值模拟,分析了岛型导叶的气动特点、通道中的二次流动和各个涡系的发展以及不同叶尖间隙对流动的影响。

The numerical simulation technique is used to investigating the secondary flow in the different swept height blade cascades of a turbine last stage.

采用数值模拟技术详细地研究了不同掠高的某蒸汽轮机末级前掠叶片叶栅内部的二次流动。

The Choice of Turbulence Models in Numerical Simulation of Secondary Flow in Bypass Crossover Sub of Horizontal Wells

水平井喷砂器内二次流数值仿真中湍流模型

The Secondary Flow in the Flow of Power-law Fluid in Annulus with the Inner Cylinder Executing a Planetary Motion;

幂律流体在内管做行星运动的环空中流动的二次流

An Experimental Investigation by Using Curved Blade to Control Secondary Flow in Compressor Cascade;

弯曲叶片控制扩压叶栅二次流动的实验研究

Two-Dimensional Numerical Simulation of the Two-Phase Flow in Rectanangular Secondary Settling Tanks

平流二次沉淀池两相流二维数值模拟

This increases the short-circuit current on the secondary side;

这样就增加了二次侧的短路电流。

Large eddy simulation of secondary eddy for impinging jet

冲击射流二次生成涡的大涡模拟研究

Discussion on link of secondary logistics and growth of profits;

二次物流优化与企业效益增长的关系

Thoughts on reducing transportation cost of secondary logistics.;

降低成品油二次物流运输成本的思考

Computation of three-dimensional flow field in secondary gas injection for thrust vectoring nozzle

气体二次喷射矢量喷管三维流场计算

The Arrangement of Secondary Air in Small and Middle Size CFB Boiler

中小型循环流化床锅炉二次风的布置

Hazards of Open Secondary Circuit of Current Transformer and Corresponding Countermeasures

电流互感器二次侧开路的危害及对策

The "Second Revolution" and the End of Talent Group in Yuan-Li Watershed

“二次革命”与沅澧流域人才群的终结

Inverse Convection-diffusion Problems of Plumes and Second Contamination

高炉和二次污染物的对流扩散反问题

Among them, HVR involved m0st in puLmonary artery valve (33 cases, 64．8% ), secondly in tricuspid valve (12 cases, 35. 3 % ), thirdly in mitralvalve (6 cases, 11. 7% ).

三尖瓣返流12例（35．3％）； 其次，二尖辩运流仅6例（11．7％）；

Analysis of Overload Current in a Current Transformer and Secondary Terminal Voltage

电流互感器过载电流及二次端子电压分析

The 2~(nd) Harmonic Current Produced by Convertor Transformer and its Experimental Research

换流变压器产生的二次谐波电流及其实验研究

Two-Dimensions Numerical Simulation of the Soiid-Liquid Two-Phase Flow in Rectangular Secondary Settling Tanks;

平流二次沉淀池的二维固液两相流数值模拟研究

Effect of Secondary Air Jets on Hydrodynamics of a Square Circulating Fluidized Bed

二次风射流对方形循环流化床气固流动特性影响的研究