Gust loads alleviation of flying wing aircraft based on jet flow control

Mei Yang; Shi Zhiwei; Zhang Weiyuan; Liao Xueqi; Guo Pengyu; Xia Yuhang

doi:10.7638/kqdlxxb-2024.0140

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Gust loads alleviation of flying wing aircraft based on jet flow control

更新时间：2026-05-28

- Gust loads alleviation of flying wing aircraft based on jet flow control
- Vol. 44, Issue 1, Pages: 85-95(2026)
- 作者机构：
  
  南京航空航天大学航空学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2024.0140
  CLC： V211.3
- Published：2026
- 稿件说明：
移动端阅览
梅洋, 史志伟, 张维源, 等. 基于射流流动控制的飞翼布局飞行器阵风载荷减缓研究[J]. 空气动力学学报, 2026, 44(1): 85−95.

Mei Yang, Shi Zhiwei, Zhang Weiyuan, et al. Gust loads alleviation of flying wing aircraft based on jet flow control[J]. 2026, 44(1): 85-95.
梅洋, 史志伟, 张维源, 等. 基于射流流动控制的飞翼布局飞行器阵风载荷减缓研究[J]. 空气动力学学报, 2026, 44(1): 85−95. DOI： 10.7638/kqdlxxb-2024.0140

Mei Yang, Shi Zhiwei, Zhang Weiyuan, et al. Gust loads alleviation of flying wing aircraft based on jet flow control[J]. 2026, 44(1): 85-95. DOI： 10.7638/kqdlxxb-2024.0140.

摘要

针对飞翼布局飞行器静稳定性较差的特点，通过控制面偏转应对阵风载荷的方法因受机械传动系统限制，存在操纵效率低、控制效能有限等问题。为此，本文采用CFD数值模拟方法，开展基于射流流动控制的阵风载荷减缓技术研究。首先对飞翼布局飞行器的阵风响应特性进行分析，在此基础上采用壁面射流和环量射流分别抑制阵风诱导的气动力载荷，并提出一种基于压力反馈的阵风载荷减缓控制方案。结果表明：阵风扰动主要影响飞行器上翼面前缘压力分布，导致气动力特性改变；施加壁面射流和环量射流均能有效控制阵风载荷，其中环量射流在现有激励器参数和布局配置下表现出更优的控制效率；在基于压力反馈的闭环控制下，环量射流可使阵风诱导的升力系数增量均方根值降低63.1%，俯仰力矩系数增量均方根值降低72.1%，验证了该方法的有效性。

Abstract

Due to the limitations of mechanical actuation systems

methods involving control surface deflections to address gust loads suffer from low maneuvering efficiency and limited control effectiveness. Considering the poor static stability characteristics of flying-wing aircraft

a study was conducted on gust load alleviation using jet flow control

based on Computational Fluid Dynamics (CFD) simulations. Initially

the gust response characteristics of the flying wing aircraft were analyzed. Building upon this analysis

both wall jet and circulation control were employed to mitigate the aerodynamic loads induced by gusts. Additionally

a gust load alleviation control strategy based on pressure feedback was proposed. The results indicate that gusts predominantly alter the pressure distribution on the leading edge of the upper wing surface

thus affecting aerodynamic loads. Both wall jet and circulation control were found to be effective in controlling loads; however

the circulation control demonstrated higher efficiency in alleviating gust-induced loads under the current actuator parameters and configurations. In this study

a pressure feedback-based closed-loop control system was designed

which automatically adjusts the jet according to the intensity of the gusts to achieve load alleviation. Under closed-loop control based on pressure feedback

the root mean square value of the increment in lift coefficient induced by gusts was reduced by approximately 63.1%

and the root mean square value of the increment in pitch moment coefficient was reduced by approximately 72.1%.

关键词

Keywords

references

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