Integrated attack angle and crosswind characteristics of nacelle-and-fan based on airworthiness compliance

被引：0
|
作者：
Fu W. [1 ]
Guo C. [2 ]
Sun P. [1 ]
Tao L. [1 ]
机构：
[1] College of Safety Science and Engineering, Civil Aviation University of China, Tianjin
[2] Marine Engineering College, Dalian Maritime University, Liaoning, Dalian
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2024年 / 39卷 / 03期
关键词：
airworthiness compliance; fan; inlet distortion; nacelle inlet; surge/stall;
D O I：
10.13224/j.cnki.jasp.20220180
中图分类号：
学科分类号：
摘要：
By taking turbofan engine as the research object， the characteristics and flow field of nacelle and fan integration under the conditions of 0°， 15°， 25° attack angle and 90° crosswind of ±10，±20 m/s and ±30 m/s were studied by numerical simulation. The results showed that with the increase of attack angle， the negative effect of the reverse crosswind on the performance of the nacelle inlet and fan was greater under the same wind speed. According to the airworthiness clause requirements of maneuverability， wind speed and surge/stall characteristics， when the attack angle was 25°， the forward and reverse crosswind ranges that the nacelle and fan integration performance can withstand were about 0− 23 m/s and 0− 18 m/s， respectively， and when the crosswind speed was ±30 m/s， the allowable maneuvering attack angle ranges were about 0°− 3° and 0°− 2°，respectively. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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