内埋武器舱动态流动特性及降噪控制方法研究

瓮哲; 王霄; 刘超; 富佳伟; 陈同银; 赵卓林; 毛磊

doi:10.7638/kqdlxxb-2022.0030

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内埋武器舱动态流动特性及降噪控制方法研究

专栏——内埋武器舱 | 更新时间：2026-05-28

- 内埋武器舱动态流动特性及降噪控制方法研究
- Unsteady flow characteristics and noise reduction control methods of a geometrically complex weapons bay
- 空气动力学学报 2022年40卷第3期页码：169-174
- 作者机构：
  
  中国航空工业集团公司沈阳飞机设计研究所,沈阳,110035
- 作者简介：
  
  瓮哲（1989-），女，河北保定人，高级工程师，研究方向：空气动力学. E-mail：wengzhe0613@126.com
  王霄*（1981-），男，辽宁锦州人，研究员，研究方向：空气动力学. E-mail：alenwx@126.com
- 基金信息：
- DOI：10.7638/kqdlxxb-2022.0030
  中图分类号： V211.4
- 纸质出版：2022
- 稿件说明：
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瓮哲, 王霄, 刘超, 等. 内埋武器舱动态流动特性及降噪控制方法研究[J]. 空气动力学学报, 2022, 40(3): 169−174.

WENG Zhe, WANG Xiao, LIU Chao, et al. Unsteady flow characteristics and noise reduction control methods of a geometrically complex weapons bay[J]. 2022, 40(3): 169-174.
瓮哲, 王霄, 刘超, 等. 内埋武器舱动态流动特性及降噪控制方法研究[J]. 空气动力学学报, 2022, 40(3): 169−174. DOI： 10.7638/kqdlxxb-2022.0030

WENG Zhe, WANG Xiao, LIU Chao, et al. Unsteady flow characteristics and noise reduction control methods of a geometrically complex weapons bay[J]. 2022, 40(3): 169-174. DOI： 10.7638/kqdlxxb-2022.0030.

摘要

流动经过武器舱会产生诸如边界层分离、剪切层失稳、气动噪声等一系列复杂流动特征，进而可能对舱内设备和结构造成破坏。本文以近真实复杂内埋武器舱为研究对象，通过高精度数值仿真获取内埋武器舱动态流动特性；根据流场特性，分析武器舱内噪声产生机理，提出了前缘扰流片、导波管以及前缘吹气三种流动控制方案。通过高速风洞试验，系统分析了舱门开度、内埋武器挂载等因素对武器舱内噪声水平的影响，并且对不同扰流装置的降噪效果进行了测试分析。结果表明：内埋武器舱内流动以小尺度湍流结构为主；前舱在舱门小开度时总声压级较高，随开度增加后舱总声压级增大，舱门开到一定程度后，舱内总声压级分布基本一致。舱内挂载武器减弱流动对各壁面的拍击强度，使得舱内各壁面总声压级降低。三种控制方式均能够抬高剪切层，减弱武器舱内的能量注入，进而对武器舱内总声压级产生一定的降噪效果。在本文研究范围内，前缘扰流片的降噪效果最为显著，降噪幅值达5 dB。

Abstract

Flow past a weapon bay has a number of complex flow characteristics

such as the boundary layer separation

shear layer instabilities

acoustic noise

which may cause damage to the internal equipment or structure of the weapon bay itself. In this study

a complex weapon bay was developed to incorporate more realistic weapon bay features

and the unsteady flow characteristics inside the weapon bay were obtained using a high-precision numerical method. The noise generation mechanism was unveiled

based on which three types of flow control schemes

i.e. the leading-edge spoiler

the still-pipe

and the leading-edge air blowing

were proposed. Influence of the weapon-bay door opening angle and the embedded weapon on the noise level was systematically investigated using high-speed wind tunnel tests

and the noise reduction effects of different control devices were analyzed. The results show that

flow inside the weapon bay is dominated by small scale turbulent structures. The overall sound pressure level (OASPL) of the front cabin is relatively high when the door opening is small

and that of the rear cabin increases as the opening degree increases. After the door is opened to a certain extent

the OASPL distribution in the cabin remains the same. Embedding weapons lowers the OASPL in the weapon bay by weakening the slap intensity of the flow on each wall. All three control methods show significant reduction of OASPL by lifting up the shear layer and reducing the injected energy into the weapon bay. Based on the present study

the leading-edge spoiler is most effective in noise reduction

which can reduce the amplitude of OASPL by more than 5 dB.

关键词

Keywords

references

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