前置部分叶高增压转子风扇气动性能研究  

Investigation on Aerodynamic Performance of Fan With Partial-height Booster

作　　者：周创鑫 李紫良 赵胜丰[1,2,3] 黄松 卢新根 ZHOU Chuang-Xin;LI Zi-Liang;ZHAO Sheng-Feng;HUANG Song;LU Xin-Gen(Key Laboratory of Light-Duty Gas-Turbine,Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Innovation Academy for Light-duty Gas Turbine,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院工程热物理研究所/轻型动力重点实验室,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院轻型动力创新研究院,北京100190

出　　处：《工程热物理学报》2021年第6期1413-1422,共10页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51836008)。

摘　　要：在航空发动机更高推重比的需求牵引下,风扇需进一步提高其通流能力和内涵增压能力。本文以某宽弦复合掠跨音风扇为研究对象,对前置部分叶高增压转子风扇开展了深入细致的性能和流动机理研究。结果表明:高通流风扇中串列转子叶片的周向相对布局对风扇性能有决定性影响,在λ_(s)=20%周向布局下,风扇最大通流能力在外径、效率以及裕度基本不变的前提下增大5.83%,同时峰值效率点下总压比提升8.38%,压比提升主要来源于内涵压比的提升。研究证实前置部分叶高增压转子风扇有效提升了风扇级的性能水平,展现出巨大应用前景。To further improve the thrust to weight ratio in an aircraft engine,the flux capacity and core pressurization capacity of the fan should be enhanced.In this study,detailed investigations were conducted to detect the underlying flow mechanisms in the partial-height booster and its effects on the aerodynamic performance of a highly loaded transonic fan.Result shows that the clocking arrangement of tandem rotor in high-throughflow fan determined the overall performance.At 20%clocking arrangement,compared with the baseline fan,the maximum flux capacity and the total pressure ratio of the fan with partial-height booster were increased by 5.83%and 8.38%at peak efficiency point,respectively,whereas the casing diameter,efficiency,and stall margin nearly remained unchanged,and the increase of pressure ratio was mainly attributed to the increase of core pressure ratio.Research demonstrates that the fan with partial-height booster effectively increased the performance of the original fan and shows potentials in the application.

关 键 词：轴流压气机 风扇 串列转子 数值模拟 流动机理 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]