大型客机增升装置噪声机理与噪声控制综述  

Review of the mechanism and noise control of high-lift device noise

作　　者：李伟鹏[1] LI Weipeng(School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China)

机构地区：[1]上海交通大学航空航天学院,上海200240

出　　处：《空气动力学学报》2018年第3期372-384,409,共14页Acta Aerodynamica Sinica

基　　金：国家自然科学基金(11772194);国家"973"课题(2014CB744802;2014CB744804)

摘　　要：增升装置噪声是大型客机起降阶段总体噪声水平的重要组成部分。本文综述分析了增升装置噪声机理与噪声控制方法,指出了当前增升装置噪声研究中存在的几个关键难题。开展了高可靠性大涡模拟数值计算,利用相平均、本征正交分解、动态模态分解和相关性分析等方法,对缝翼噪声、襟翼尾缘噪声和襟翼侧缘噪声机理进行了深入研究,增强了对增升装置噪声机理的认识,研究结果有助于指导高效噪声控制方法设计。High-lift device noise has been identified as a major noise source during aircraft approach and landing.Reviews on the noise generation mechanism and noise control methods of the high-lift device noise are conducted.Challenges in understanding the physical mechanism of the noise generation and implementing effective noise control has been pointed out.We performed high-fidelity large-eddy simulations for flow past the slat,flap trailing-edge and flap side-edge separately.Based on phase-averaging analysis,proper orthogonal decomposition（POD）,dynamic mode decomposition（DMD）,and two-point correlations,we increase insights on the underlying physics of the high-lift device noise.The results are expected to guide the design of high efficient noise control approaches.

关 键 词：增升装置噪声 噪声机理 噪声控制 

分 类 号：O127.1[理学—数学] V221[理学—基础数学]