In order to do some work for resolveing this paradox,as a begin,an aerodynamics test was executed on compressor blade profile and cylinder in plane cascade tunnel.
本文在不同的平面叶栅风洞中对圆柱及二维扩压叶栅进行了吹风实验,利用传声器、热线热膜以及动态压力传感器等动态测试仪器,对圆柱和二维扩压叶栅后旋涡脱落情况进行了试验研究。
Based on the concept of Fortran and VB language mixed programming, a method of using Dynamic Link Library to exchange data between the different languages is introduced, and a visualized processing system of cascade wind tunnel test included the functions of calculating, displaying, and analyzing is developed.
通过VB与Fortran的混合编程,利用动态链接库技术在不同语言间实现数据交换,开发了集计算、显示及分析为一体的叶栅风洞实验数据可视化处理系统。
By using the software,the relationships between the features of exciting forces and structural parameters of blade cascade are analyzed.
在研究汽轮机叶片气流激振力的来源与性质的基础上,建立了静叶尾迹流产生的气流激振力计算模型,开发出了基于Matlab的气流激振力计算与分析软件,以探讨叶片气流激振力特性随叶栅结构参数的变化关系。
Calculations of turbine stationary blade cascades were carried out,and also calculations of moving blades under different rotational speed conditions.
采用数值模拟的方法对旋转涡轮叶片表面的气膜冷却效率进行了研究,同时对涡轮静叶栅和动叶片在不同的旋转速度下分别进行计算,分析不同转速、吹风比和冷却气流喷射角度对气膜冷却的影响。
The paper reports on the application of genetic algorithm in the optimizing design of blade cascades of turbomachinery, introduces an optimizing design model which uses mean square deviation for minimizing the difference between the actual and the ideal suction side pressure of the cascade as the object function and the geometry parameters of the cascades as the variables.
该文将遗传算法应用于透平机械叶栅的优化设计 ,建立起以极小化叶栅背弧实际压力与理想压力均方差为目标函数 ,以叶栅几何参数为变量的优化设计模型。
The Variabledomain variational FEM is used to design 2 D subsonic cascades.
本文给出了亚声速平面叶栅反命题计算的势函数变域变分有限元解法。
The outlet flowfield and static pressure on blade surfaces of the classical turbine stator cascades with straight and -10°?-20° bowed blades were measured in the linear cascade wind tunnel.
在平面透平叶栅风洞中 ,测量了一种典型透平静叶型直叶片叶栅和叶片弯曲角分别为 - 1 0°、- 2 0°的反弯曲叶片叶栅的出口流场和叶片表面静压 。
In this paper,experiments were carried out on static cascades used in 300MW steam turbine modified by Harbin Turbine Co.
本文对哈尔滨汽轮机有限责任公司 30万kW汽轮机静叶栅的两套改型方案进行了实验验证 ,通过对实验结果的详细分析 ,得出了决定后部加载叶型气动性能的三个主要因素 ,即前缘圆直径 ,吸力面出口逆压段梯度与逆压梯度大小的合理匹配、尾缘圆直径。