对转压气机三维掠动叶优化设计

推进技术 ›› 2013, Vol. 34 ›› Issue (4): 486-492.

对转压气机三维掠动叶优化设计

曹志远,刘波,张国臣,杨小东,陈得胜,李俊

西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072;西北工业大学动力与能源学院,陕西西安 710072

发布日期:2021-08-15
作者简介:曹志远(1985—),男,博士生,研究领域为轴流压气机气动优化设计。E-mail:zylast@126.com
基金资助:
国家自然科学基金(51236006)。

Three Dimensional Swept Rotor Blade Optimization Design for a Counter-Rotating Compressor

School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China;School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072,China

Published:2021-08-15

摘要/Abstract

摘要： 为探索三维掠动叶降低对转压气机二次流损失的潜力,进一步提高对转压气机气动性能,基于近似函数与遗传算法,针对某对转压气机双排转子在整机环境下进行三维掠动叶优化设计,并对优化前后流场进行对比分析。优化成功的得到了双排“S”形掠动叶,结果表明:三维掠动叶有效改善了双排动叶吸力面径向二次流,减小了吸力面低速区,提高了对转压气机性能,优化工况点整机效率提高0.6%,全工况范围内效率均有所提高；三维掠动叶提高对转压气机效率的根本原因是其对径向负荷分配的重新调整,将叶展下方流动较差区域负荷移至叶展上方,改善流场的同时保证对转压气机负荷不变。 

关键词: 压气机;对转技术;三维掠动叶;优化设计;二次流;流动损失;压气机效率 

Abstract: Based on function approximation and genetic algorithm,three dimensional swept rotor blade optimization design was conducted on the rotors of a counter-rotating compressor. The purpose of the paper is to explore the potential of reducing the secondary flow losses and hence to improve the overall performance of the counter-rotating compressor. Two rows of swept rotor blades with the shape of S were obtained from the optimization process, and then numerical simulation was carried out to identify the effectiveness of the optimization. The results demonstrate that three dimensional swept rotor blades effectively reduce both the radial secondary flows and low velocity areas around the suction side of the two rows of swept rotor blades. Furthermore, the efficiency of the counter-rotating compressor is increased by 0.6% at the optimization point, and it is also increased at all the other operating points. The reasons accounting for the efficiency improvement lie in that three dimensional swept rotor blades create a redistribution of the radial blade loadings by transferring the blade loadings from the bottom region with high losses to the top region, and in this way the flow field is improved while maintaining the blade loadings constant. 

Key words: Compressor;Counter-rotating technique; 3D swept rotor blade; Optimization design; Secondary flow;Flow loss;Compressor efficiency

曹志远,刘波,张国臣,杨小东,陈得胜,李俊. 对转压气机三维掠动叶优化设计[J]. 推进技术, 2013, 34(4): 486-492.

CAO Zhi-yuan, LIU Bo, ZHANG Guo-chen, YANG Xiao-dong, CHEN De-sheng, LI Jun. Three Dimensional Swept Rotor Blade Optimization Design for a Counter-Rotating Compressor[J]. Journal of Propulsion Technology, 2013, 34(4): 486-492.

参考文献

[1] Hosny W, Tabakoff W.An Analysis of Losses and Secondary Flow in Turbine Cascade [R].AD-736853,1.
[2] Denton J D.Loss Mechanisms in Turbomachines [R].ASME 93-GT-435.
[3] 钟兢军.弯曲叶片控制扩压叶栅二次流动的实验研究[D].哈尔滨:哈尔滨工业大学,1995.
[4] 张华良.采用叶片弯/掠及附面层抽吸控制扩压叶栅内涡结构的研究[D].哈尔滨:哈尔滨工业大学,2007.
[5] Hah C,Puterbaugh S L, Wadia A R.Control of Shock Structure and Secondary Flow Field Inside Transonic Compressor Rotors Through Aerodynamic Sweep [R].ASME 98-GT-561.
[6] Beini E, Biollo R.On the Aerodynamics of Swept and Leaned Transonic Compressor Rotors [R].ASME 2006-GT-90547.
[7] 陈浮,宋彦萍,冯国泰,等.掠叶片对压气机叶栅流场性能的影响[J].工程热物理学报,2003,24(4):586-588.
[8] Yamaguchi N, Tominaga T, Hattori S, et al.Secondary-Loss Reduction by Forward-Skewing of Axial Compressor Rotor Blading [C].Yokohama:Proceeding of 1991Yokohama international gas turbine congress,1991,2:61-68.
[9] Choon-Man Jang, Abudus Samad, Kwang-Yong Kim.Optimal Design of Swept, Leaned and Skewed Blades in a Transonic Axial Compressor [R].ASME 2006-GT-90384.
[10] 伊卫林,黄鸿雁,韩万金,等.基于数值优化方法的跨声速压气机掠动叶设计[J].推进技术,2006,27(1):33-36.(YI Wei-lin, HUANG Hong-yan, HAN Wan-jin,et al.Design of Swept Rotor of Transonic Compressor by Numerical Optimization [J].Journal of Propulsion Technology, 2006,7(1):33-36.)
[11] 高坤.轴流压气机叶片优化设计及分析[D].西北工业大学,2007.
[12] 刘波,陈云永,项效镕,等.对转压气机数值模拟及实验研究[J].推进技术,2008,29(4):454-457.(LIU Bo, CHEN Yun-yong, XIANG Xiao-rong, et al.Experimental and Numerical Investigation of Dual Stage Counter-Rotatin g Compressor [J].Journal of Propulsion Technology, 2008,9(4):454-457.)