基于LES的串列叶片气动及声学特性

doi:10.12066/j.issn.1007-2861.2696

上海大学学报(自然科学版) ›› 2026, Vol. 32 ›› Issue (1): 67-82.doi: 10.12066/j.issn.1007-2861.2696

• 力学与土木工程 • 上一篇

基于LES的串列叶片气动及声学特性

文础毅^1,2, 唐小龙^1,2, 丁珏^1,2, 杨小权^1,2, 翁培奋^1,2

1. 上海市应用数学和力学研究所, 上海 200444;
2. 上海大学力学与工程科学学院, 上海 200444

收稿日期:2024-07-17 发布日期:2026-03-16
通讯作者: 唐小龙(1988-),男,博士,研究方向为计算流体力学、气动噪声机理与控制等. E-mail:tangxl@shu.edu.cn
基金资助:
国家自然科学基金资助项目(12102247);国家科技重大专项资助项目(J2019-II-0006-0026)

Large eddy simulation of aerodynamic and aeroacoustic performances of tandem blades

WEN Chuyi^1,2, TANG Xiaolong^1,2, DING Jue^1,2, YANG Xiaoquan^1,2, WENG Peifen^1,2

1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 200444, China;
2. School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China

Received:2024-07-17 Published:2026-03-16

摘要/Abstract

摘要： 建立了串列叶片模型,基于大涡模拟(large eddy simulation,LES)耦合FfowcsWilliams and Hawkings (FW-H)方程对其气动及声学特性进行了研究,并对叶片间距变化带来的噪声响应展开了分析.结果表明:①亚声速中等雷诺数(Ma=0:21,Re=7×10⁵)下的串列叶片,其噪声主要来源于下游叶片且表现为宽频特性;②受叶尖下洗和叶根上洗流的影响,串列叶片相互作用产生的噪声源主要汇聚于叶片中段;③随着叶片间距增大,上游叶片尾迹发展更充分且与下游叶片作用时间间隔增大,导致串列叶片总声压级(sound pressure level,SPL)增大,声能量向低频转移.

关键词: 串列叶片噪声, 大涡模拟, FW-H积分, 叶尖间距

Abstract: To explore the aerodynamic and aeroacoustic performance of a newly designed tandem blade configuration, numerical simulations were conducted using large eddy simulation (LES) combined with the Ffowcs-Williams and Hawkings (FW-H) integral. The performance responsed to the change of blade spacing was also discussed. The results showed that under subsonic and moderate Reynolds number conditions (Ma = 0.21, Re = 7×10⁵), the noise generated by tandem blades mainly originated from the aft blade and it carried a broadband characteristic. Influenced by the downwash and upwash flows from the blade tip and root, the noise generated by tandem blades tended to be concentrated near the blade mid-span. As the blade spacing increased, the wake behind the fore blade became stronger as a result of enhanced energy accumulation, and the time delayed between the upstream and downstream blades became longer. This led to an increase in the total sound pressure level (SPL) and a shift of the acoustic energy toward lower frequencies.

Key words: tandem blade noise, large eddy simulation (LES), Ffowcs-Williams and Hawkings (FW-H) integral, blade spacing

中图分类号:

文础毅, 唐小龙, 丁珏, 杨小权, 翁培奋. 基于LES的串列叶片气动及声学特性[J]. 上海大学学报(自然科学版), 2026, 32(1): 67-82.

WEN Chuyi, TANG Xiaolong, DING Jue, YANG Xiaoquan, WENG Peifen. Large eddy simulation of aerodynamic and aeroacoustic performances of tandem blades[J]. Journal of Shanghai University（Natural Science Edition）, 2026, 32(1): 67-82.

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基于LES的串列叶片气动及声学特性

Large eddy simulation of aerodynamic and aeroacoustic performances of tandem blades

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