查询词典 axial-flow turbine

A test model of four co-rotating disks was developed as the simplified version of a typical internal cooling system of a gas turbine compressor. The investigation was on the distribution of local heat transfer coefficient and the averaged nusselt number of the downstream main disk. Experimental analysis may lead to following conclusions: the distribution is not of monotony and multi-peaks were found along the disk surface,Nu increases with the decrease of the rotational reynold number Re(subscript w,Nu increases with the axial reynold number and the grasholf number.

针对航空发动机多级压气机盘腔的冷却问题，对具有轴向通流的三腔模型进行了系统的研究，通过对局部换热特性与平均换热特性的分析，可以表征旋转盘的热应力水平和相对冷却效果，结果表明表征旋转盘热应力水平的局部换热特性在旋转盘的半径上呈多峰分布，表征相对冷却效果的平均换热特性与旋转雷诺数Re、进气雷诺数Re以及格拉晓夫数Gr有关，当Re及Gr增加时，平均努塞尔数Nu随之增加，而Re的增加使之减小。

Rotate speed of 1 hydraulic turbine group measures a principle measurement unit of group rotate speed is like this hydraulic turbine graph 1 place is shown, it is comprised by sensor of 65 micro computer instrument, among them 64 sensor distributing to go up in 4 symmetrical runner shaft, the 65th sensor is in axial center nodical.

该水轮机组转速测量安装如图1所示，它由六十五个微型机械传感器组成，其中六十四个传感器漫衍在对称的四个转轴上，第六十五个传感器在轴的中心交点。

In addition, it is well known that axial force coefficient denotes the pressure drop across the turbine to a great extent.

因此，如果知道了轴向力系数，就可由透平的运动状态获得透平前后的压降。

Structure of aero- engine case under the effect of combined axial pressure and end twist;2. The integration of CAD parametric modeling,finite element method,classical strength calculation theory with modern optimal design techniques produces a complete and systematic design procedure for performing parametric optimal design of turbine disk, engine case and turbine shaft.

开发了基于大型有限元分析软件Ansys的燃气涡轮发动机辅助设计系统，该系统将CAD参数建模技术、工程有限元数值计算方法、经典强度计算理论与现代优化设计技术相结合，实现了涡轮盘、机匣和涡轮轴典型零件的参数优化设计的完整设计流程，建立了结构优化设计平台；并通过机匣的结构优化设计实例，验证了燃气涡轮发动机辅助设计系统的有效性。

Turbine Cascade; Curving Blade; Axial Fan; Experimental and Numerical Simulation

透平叶栅；弯曲叶片；轴流风机；实验和数值模拟

The distuibution of axial plane stubs and stub crossing points are non-uniform and quantity of them is not equal when the blade is made by using traditional design method of turbine. These are not benefit with calculating wood model and drawing. In this paper, to make blade wooden patterns is using blade mean camberline. This makes the wooden patterns meet the demand of the design and meet the shape of the runner blade. And this can agree with requirements of hydro and mechanical analysis and making the model of blade by using the numerical control machine. It has reference value to whole design of turbine.

针对传统方法设计水轮机叶片时，获得的轴面截线和截线交点疏密不均、个数不等、不利于叶片木模的计算和绘形的缺点，文中利用叶片叶型骨线数值生成叶片木模图，使新的木模图能够更好的体现设计要求和符合实际转轮叶片的形状，并能满足进一步的水力和机械分析以及数控机床制作模型叶片的需要，对水轮机的整体设计具有参考价值。

Motor part of a "3 hit machine" design, the main axis short, three bearings in the turbine above all, greatly improve the efficiency and life of unit is the axial plane of the replacement Product.

电机部分采用&3型击机&的设计，主轴短，三个轴承都在水轮机上面，大大提高机组的效率和寿命，是轴流机的更新换代产品。

Turbine shaft stretching; axial turbine blade set; Francis turbine; impulse turbine; oblique strike turbine; low Hydrogenerator; high-pressure hydro-generator; Bulb turbine; Kaplan turbine ; hydroelectric generating units

湖南汉龙水电设备有限公司是由有五十多年生产历史的国有企业改制而成的、经湖南省工商行政管理局核准登记注册、国家定点生产中小型水轮发电机组的专业厂家，中国电器工业协会水电分会会员。

The new mechanism considers the radial eccentricity and the axial pitch angle of turbine rotors.

通过MATLAB进行数值积分和图形处理，得到了反映流体激振力与涡轮径向偏心距和轴向偏斜角关系的一组图形。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。