spiral casing

The Calculation on Compensation Values of Spread Spiral Casing

金属蜗壳展开补偿计算

On the equation of nozzle curve of spiral casing in water power electrical station

水电站蜗壳进口曲线方程

Different geometry of stay vanes applied to reduce loss is discussed in the paper, so as to compensate lack of spiral casing and improve hydraulic efficiency.

本文探讨了通过沿圆周分布不同形状的固定导叶来降低损失，以克服此种蜗壳自身的不足，提高转轮的水力效率。

Reason Analysis and Treatment of Weld Crack in Water Drain Valve Base of Spiral Casing in Longtan Hydropower Station

龙滩电站蜗壳排水阀阀座焊接裂纹产生原因及处理

Analysis and Discussion on Giant Spiral Casing Embedded with Soft Cushion Layer Estimation of Permeability of Bedding Materials and Leakage through Concrete-face in CFR Dam

巨型水电站采用垫层蜗壳的分析与探讨混凝土面板堆石坝垫层透水性和面板裂缝渗漏的估算

This paper summarizes soft development and technology of spreading of elliptical spiral casing based on approximate elliptical spiral casing ( major and small circle casing).

主要介绍椭圆蜗壳按近似椭圆蜗壳（即大小圆蜗壳）展开的软件开发与制作工艺过程。

Renovation on Spiral Casing of Twin-screw Pump and Application

双螺杆泵螺旋套的改造与应用效果

Experimental studies were carried out in a model turbine with a complete spiral casing.

实验是在一带蜗壳的模型导水机构装置上进行的。

In order to simulate the residual stress and deformation of large-scale spiral casing of water turbine, the welding heat source model and the temperature field of multipass welding are studied in this paper.

为了对大型水轮机蜗壳的焊接残余应力和变形进行数值模拟，本文首先对焊接热源模型及多层多道焊的温度场进行了研究。

Numerical simulation of internal flow through the spiral casing of centrifugal pump

离心泵压水室内部流动数值模拟

A Hydraulic Design Method of Sheet Metal Spiral Casing of Water Turbine

水轮机金属蜗壳水力设计方法研究

Strength and stiffness analysis of spiral casing with different embedded manners

水轮机蜗壳不同埋设方式的流道结构刚强度分析

In the article, spiral casing structure simulated by three-dimensional computerization takes on high imitation, utility, higher economic benefits, meanwhile it will resolve actual project problems.

本论文就是采用该方法对蜗壳结构进行三维仿真，计算成果说明该方法具有很高的仿真性、使用性及较高的经济效益，可以有效地解决工程实际问题。

Research and Design of Eight Profiles of Flow Duct in Spiral Casing of Centrifugal Pumps

离心泵蜗壳八个断面的设计研究

CFD Analysis of Flow Inside Spiral Casing and Stay Vanes of Waterpower Recycle Equipment

水能回收装置引水部件内部流场的CFD分析

Hydraulic design of spiral casing with non-circular section and its verification with CFD analysis

全蜗壳的非圆形断面水力设计及其CFD分析验证

Numerical simulation of three-dimensional turbulent flow through a turbine spiral casing with stay ring and guide vanes

混流式水轮机蜗壳与座环三维中湍流场的数值模拟

Influence of Changing Temperature on Reinforcing Bars of Spiral Casing Structure in a Hydropower Station

温度变化对水电站蜗壳结构配筋的影响

Influence of rock resistance and temperature difference on the spiral casing structure of large-sized hydropower station

岩石抗力和内外温差对大型水电站蜗壳结构的影响

Long with increase of unit capacity and work head for hydraulic turbine, upgrade of steel plate strength used for spiral casing is needed.

随着水轮机单机容量和使用水头的提高，对蜗壳钢板的强度要求也相应提高，因此，研究高强度蜗壳钢板势在必行。

The computation domains of spiral casing and impeller have been respectively decomposed by structured grid. 3 、 Based on numerical simulation for whole centrifugal pump, numerical calculation is applied for the 3-D incompressible turbulent flow about three pairs of centrifugal pump impellers with long and short blades.

基于整机数值模拟，对3副长短叶片的离心泵进行了三维湍流数值模拟研究。

The Research of Numerical Simulations on Internal Flows Through the Spiral Casing and Stay Vanes

水轮机蜗壳和固定导叶内部流动的数值模拟研究