混流式水轮机

如何控制水轮机导水机构端面狭小间隙是高水头混流式水轮机导水机构预装中的普遍问题。

How to control small clearance of the end faces of the distributor of water turbine is a general problem during assembling in advance the distributor for high head Francis turbine .

基于CFD的混流式水轮机性能预估

Numerical Performance Prediction for a Francis Turbine Based on CFD Simulation

混流式水轮机转轮CAD

Rotary wheel CAD of the mixed flow style hydroturbine

混流式水轮机转轮X型叶片的水力特性

Hydraulic Performance of X-type Blade Used in France Turbine

基于CFD灯泡混流式水轮机转轮水力设计的研究

Research on Hydraulic Design of Bulb-francis Turbine Runner Based on CFD

混流式水轮机中旋涡流的LES法预测

Numerical Prediction of Vortex Flow in Francis Turbine for LES

500m水头段高水头混流式水轮机的选型设计

Application of Vertical Mixed Flow Turbine within Head Range 500 m

在给定叶片速度矩Vθr分布、厚度分布和转轮轴面流道几何形状的条件下，实现了混流式水轮机转轮的全三维有旋流动设计。

The design of Francis runner in the three-dimensional rotational flow can be performed according to the V θ r distribution 、 flow channel and the blade with given thickness distribution .

三峡水轮机额定出力710MW，转轮直径达10m，是目前世界上出力最大、尺寸最大的混流式水轮机。

At the Three Gorges Project the turbine has a rated output of 710 MW and the runner has a diameter of 10 m.

对ns＝260m·kW的混流式水轮机引水部件流场测试结果作了介绍。

He measurement results of flow field on the diversion components of the Francis turbine with specific speed of 260 are reported .

贯流式水轮机的比转速ns比混流式水轮机的高，在相同水头和相同直径的条件下，能通过较多流量，发出较大的功率。

Because the specific speed of bulb turbine is higher than that of the francis turbine , the discharge and power of bulb turbine are larger when head and the diameter is same .

基于k-ε紊流模型和三维时均N-S方程，进行了混流式水轮机全流道的三维定常湍流计算。

Numerical simulation of three dimensional turbulent flow through a Francis turbine was conducted on the basis of Reynolds equations closed by k - ε turbulence model with general coordinates .

基于雷诺时均N-S方程和标准k-ε双方程湍流模型，对混流式水轮机全流道的三维定常湍流的48个工况点进行了计算。

Based on Reynolds equations closed by k - ε turbulence model with general coordinates , numerical simulation of three-dimensional turbulent flow through a Francis turbine was conducted for 48 different operation points .

基于N-S方程和标准k-ε紊流模型，用数值模拟的方法分析了混流式水轮机活动导叶和转轮的匹配关系。

Based on N-S equation and the standard k - ε turbulence model , the numerical simulations of flow field through three different specific speed Francis turbines including the guide vanes and the runner were performed .

本文的主要创新点1、采用AutoCAD所提供的混流式水轮机叶片二维截面木模图，将其导入Pro/E生成三维立体图形，数据之间传递较为方便，表达准确直观。

The main innovations of this paper : 1 . AutoCAD provides two-dimensional section of a Francis turbine blade wooden model diagram , to import Pro / E generates three-dimensional graphics , data transfer between the more convenient , accurate and intuitive expression . 2 .

介绍采用UGCAD/CAM及其强大的二次开发平台，解决混流式水轮机叶片热模压成型工艺中急需解决的叶片展开、压模设计及数控加工等关键技术问题。

Based on the powerful UG CAD / CAM , the solutions of the key technique problems of the extending blade , die and mould design and NC machining in forming technology for the hydraulic turbine blade are introduced in this paper .

作为算例，建立了某水电站混流式水轮机模型综合特性曲线的可视化三维图形，并运用等值线法还原为等效率线与模型综合特性曲线进行对比。Iso的相序。

As a case study , this paper constructs a 3D visualization model for Francis a hydro-turbine synthetic characteristic curve of a hydropower station , which is changed into an iso-efficiency curve by isoline method , and compared with synthetic characteristic curve of the model .

应用CFD技术对混流式水轮机的内部流场进行模拟分析，对可能影响水轮机运行性能的若干因素进行研究，可以为改善水轮机的水力稳定性能提供依据。

Within the great progress of CFD technique , numerical simulation of the whole turbulent flow-field through a turbine can be processed . On the base of analyzing factors influencing the hydraulic properties , some ideas for enhancing design of the turbine may be offered .

其研究思想是：基于S1和S2两类相对流面理论，本文建立了混流式水轮机转轮内部流动的准三维计算与叶片设计的模型。

Which design idea is : Based on the relative stream surface and two types of theory , this paper set up a Francis turbine runner of the quasi-ternary internal mobile computing and blade design of the universal model .

本文介绍了一种稳定性较高的混流式水轮机转轮流场准三元计算方法，该方法通过S1流面的积分方程法与S2流面的有限元法迭代计算得到转轮内部流态。

A stable quasi_3D calculation method of Francis runner flow field is shown in this paper , which is combined with the integrated differential equation method ( IDEM ) of S1 stream surface and finite_element method ( FEM ) of S2 stream surface to get the flow field of runner .

混流式水轮机窄高型尾水管的应用研究

Research on the Application of High Narrow Draft-Tubes of Francis Turbines

混流式水轮机叶片流固耦合动力特性研究

Dynamic Characteristic Study of Francis Hydro Turbine Blades in Fluid-Structure Interaction

大型混流式水轮机的疲劳设计

Study on Fatigue Design of Large Francis Turbines , Power Engineering

大型混流式水轮机焊接残余应力分布的研究

Study on Welding Residual-stress Distribution of Runner of Large Hydraulic Turbine

焊接顺序对混流式水轮机转轮焊接应力的影响

Effect of welding sequence on welding stress of Francis Turbine Runner

带半叶片的混流式水轮机转轮的流场计算

The Flow Field Calculation in Francis Turbine Runner with Half Vanes

混流式水轮机转轮简化模型焊接应力场的数值模拟

Simulation on welding stress field of Francis turbine runner simplified model

大型混流式水轮机的应用现状与技术发展

Present status and technical development of application of large Francis turbine

混流式水轮机分瓣转轮组装焊接工艺导则

Technological guide for erection and welding of split runner of Francis turbine

一种稳定的混流式水轮机转轮流场准三元计算方法

A Stable Quasi-3D Calculation Method of Francis Runner Flow Field