Suppression Mechanism of Deep Cavity Noise Using Flow Interference between Cavity and Grooves Located at Different Spacings
文献类型：期刊论文
| 作者 | Lu WS(陆维爽)2; Yang GW(杨国伟)2; Zheng GN(郑冠男)1,2 |
| 刊名 | JOURNAL OF AEROSPACE ENGINEERING
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 38期号:5页码:18 |
| ISSN号 | 0893-1321 |
| DOI | 10.1061/JAEEEZ.ASENG-6095 |
| 通讯作者 | Lu, Weishuang(luweishuang@imech.ac.cn) |
| 英文摘要 | This paper employs the flow control method of the leading-edge groove on a deep cavity and numerically investigates the effect of the spacing between the groove and the cavity on the aerodynamic noise characteristics of the cavity at Mach number (Ma) 0.16. Moreover, the noise reduction mechanism of the deep cavity is further investigated. The spacings between the groove and the cavity are 0.5 times, one time, two times, and three times the groove length. The adopted method is a combination of the detached eddy simulation (DES) and Flowcs Williams-Hawkings (FW-H) equations to obtain the flow and aerodynamic noise characteristics of the cavity. The results showed that the suppression effect of the grooves on the flow noise of the cavity at four positions was different, with the most obvious noise reduction effect occurring when the spacing equaled two times the groove length, followed by when the spacing equals 0.5 time the groove length. However, the noise reduction mechanism of the two is not entirely the same. When the spacing equals 0.5 time the groove length, the groove flow significantly reduces the broadband noise and acoustic resonance noise in the deep cavity but has almost no suppression effect on flow-acoustic feedback noise. When the spacing equals two times the groove length, the groove flow slightly reduces the broadband and acoustic resonance noises and suppresses the flow-acoustic feedback noise. |
| 分类号 | 二类 |
| 资助项目 | Chinese Academy of Sciences[E2XM0404] ; Key Laboratory of Aerodynamic Noise Control of China Aerodynamics Research and Development Center[ANCL20230107] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001529638000016 |
| 资助机构 | Chinese Academy of Sciences ; Key Laboratory of Aerodynamic Noise Control of China Aerodynamics Research and Development Center |
| 其他责任者 | 陆维爽 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/102077]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Lu WS,Yang GW,Zheng GN. Suppression Mechanism of Deep Cavity Noise Using Flow Interference between Cavity and Grooves Located at Different Spacings[J]. JOURNAL OF AEROSPACE ENGINEERING,2025,38(5):18. |
| APA | 陆维爽,杨国伟,&郑冠男.(2025).Suppression Mechanism of Deep Cavity Noise Using Flow Interference between Cavity and Grooves Located at Different Spacings.JOURNAL OF AEROSPACE ENGINEERING,38(5),18. |
| MLA | 陆维爽,et al."Suppression Mechanism of Deep Cavity Noise Using Flow Interference between Cavity and Grooves Located at Different Spacings".JOURNAL OF AEROSPACE ENGINEERING 38.5(2025):18. |
入库方式： OAI收割
来源：力学研究所
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