摘要
经过多年的发展,空气工质压气机已经开发了一系列的适用于从低速到高速的叶型。氦气具有很高的音速,并且经过高负荷设计后的氦气压气机叶栅通道与空气压气机明显不同,因此开发一套适用于高负荷氦气压气机的低损失叶型就显得十分必要了。本文研究了一种适用于高负荷氦气压气机的叶型,并采用数值模拟的方法将其与CDA叶型进行了比较。研究结果表明:高负荷氦气压气机叶型的总压损失系数较CDA叶型降低了3%,而喘振裕度提高了3%。
After many years development, the air compressor has formed a set of blade type (airfoil) which is suitable for air compressor design from low speed to high speed. Helium has a high sonic speed, and newly devised the expansion and contraction structure of the helium cascade after highly loaded design is obviously different from the structure of the air compressor. Therefore, it is necessary to develop a set of helium blade (helium- foil) with low dissipation loss for highly loaded helium compressor. In this paper, a type of helium-foil is presented. The performances of this helium-foil are compared with the CDA by numerical simulation. The results show that the total pressure loss coefficient of the helium -foil is 5%lower than that of theCDAand the surge margin of the helium-foil compressor is 3% higher than that of the CDA.
作者
田志涛
郑群
姜斌
段昱
Zhi-tao Tian;Qun Zheng;Bin Jiang;Yu Duan
出处
《风机技术》
2019年第1期22-28,I0008,共8页
Chinese Journal of Turbomachinery
基金
National Natural Science Foundation of China(51476039)
Ph.D.Student Research and Innovation Fund of the Fundamental Research Funds for the Central Universities(HEUGIP201805)
Fundamental Research Funds for the Central Universities of China(HEUCF180305)and(HEUCFP201847)
