The problem is studied firstly that the performance characteristics of pump be affected specifically by the four kinds of geometrical parameters of impeller, i. e. number of blade, outlet blade angle, tangential blade thickness and centre angle in this article using the orthogonal experimental method. 作者运用正交试验法,进行了叶片数,叶片出口安放角、圆周厚度和包角等四种叶轮几何参数对离心泵能量性能影响的试验研究。
Plane cascade tests were carried out for the cascade under four inlet flow angles and three outlet isentropic Mach numbers, and the important parameters such as surface pressure on blade, outlet flow angle and cascade losses were measured. 对喷嘴叶栅进行了四个进口气流角、三个出口等熵马赫数条件下的平面叶栅吹风试验,测取了型面压力分布、出口气流角以及叶栅损失等重要气动特性参数。
This paper studies the influence of flow in centrifugal impeller and outlet blade angle on the performance of centrifugal pumps. 本文研究了离心叶轮内的流动及不同叶片出口角对离心泵性能的影响。
The important procedure of designing higher pressure ratio, wider operation range, and better efficiency centrifugal compressor is to investigate the influence towards the compressor performance with changing some parameters, such as outlet blade angle and the width of blade tip clearance. 采用离心压气机性能仿真数学模型研究某些几何参数,如叶片顶部间隙,叶轮叶片出口角变化对压气机性能产生的影响,是当今设计高压比、宽工作范围、高效离心压气机的关键步骤。