弯掠优化对高负荷跨声速串列转子的影响分析

推进技术 ›› 2018, Vol. 39 ›› Issue (1): 23-32.

弯掠优化对高负荷跨声速串列转子的影响分析

宋召运,刘波,张鹏,茅晓晨

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:宋召运，男，博士生，研究领域为压气机气动热力学。
基金资助:
国家自然科学基金(51676162)；先进航空发动机协同创新中心资助。

Analysis of Optimization of Lean and Sweep Influence on Highly Loaded Transonic Tandem Rotor

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

Published:2021-08-15

摘要/Abstract

摘要： 为了研究三维弯掠优化对串列转子性能的影响，设计了一套基于NURBS参数化方法和Kriging代理模型的串列转子三维弯掠优化系统。以一高负荷跨声速串列转子为研究对象，分别研究了掠形优化、弯形优化和复合弯掠优化对串列转子性能的影响。结果表明:三维弯掠优化可以改善串列转子的性能，与原型串列转子相比，前掠转子、正弯转子和复合弯掠转子在近设计点的效率分别提高了1%，1.03%，1.47%，正弯转子的稳定裕度增加了23%，但前掠转子和复合弯掠转子稳定裕度有少许下降。在高负荷跨声速串列转子的弯掠优化造型中，前掠造型能改善串列转子叶中和叶尖的性能，叶根性能有所下降，正弯造型能改善串列转子大部分叶展的性能，弯掠优化造型提升高负荷跨声速串列转子效率的原因是弯掠优化降低了转子通道正激波的波前马赫数，而激波位置基本不变。

关键词: 高负荷；跨声速转子；串列转子；前掠转子；正弯转子

Abstract: To study the effects of the optimization of 3D sweep and lean on the performance of tandem rotor， an automatic optimization system of 3D sweep and lean of tandem rotor was developed based on Kriging model and NURBS method. The optimization system is validated by optimizing a highly loaded transonic tandem rotor. The effects of sweep optimization， lean optimization and composite optimization of lean and sweep on the performance of the tandem rotor were respectively discussed. The results show that the optimization of 3D sweep and lean can improve the performance of tandem rotor. Compared with original tandem rotor， at design condition， the efficiency of forward sweep rotor， positive lean rotor and the composite of lean and sweep rotor were improved by 1%， 1.03% and 1.47%， respectively. The stability margin of positive lean rotor was raised by 23%， while the stability margin of forward sweep rotor and the composite of lean and sweep rotor had a little decrement. Besides， forward sweep blade can improve the aerodynamic performance of the tip and the middle section of highly loaded transonic tandem rotor， but deteriorate the aerodynamic performance of the hub. Positive lean blade can enhance the aerodynamic performance of most span of tandem rotor. The reason for sweep and lean optimization enhancing the efficiency of tandem rotor is that sweep and lean optimization reduces the shock Mach number of rotor passage normal shock， but does not change the position of normal shock.

Key words: Highly loaded；Transonic rotor；Tandem rotor；Forward sweep rotor；Positive lean rotor

宋召运,刘波,张鹏,茅晓晨. 弯掠优化对高负荷跨声速串列转子的影响分析[J]. 推进技术, 2018, 39(1): 23-32.

SONG Zhao-yun,LIU Bo,ZHANG Peng,MAO Xiao-chen. Analysis of Optimization of Lean and Sweep Influence on Highly Loaded Transonic Tandem Rotor[J]. Journal of Propulsion Technology, 2018, 39(1): 23-32.

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