航空声学风洞的声学设计研究  

Research of acoustic design for aeroacoustic wind tunnel

作　　者：李鹏[1] 汤更生[1] 余永生[1] 吕波[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验流体力学》2011年第3期82-86,共5页Journal of Experiments in Fluid Mechanics

摘　　要：随着航空运输业的发展,飞机的噪声问题日益引起人们的关注。开展航空声学试验研究的地面试验设备主要是航空声学风洞。笔者阐述了航空声学风洞声学设计的基本要求、应考虑的主要问题,提出了航空声学风洞声学设计的方法等。并将这些研究成果应用于引导风洞研制中,得到了在开口试验段风速80m/s时,气流外2m测点处背景噪声76.5dB(A)的结果。Along with the development of air transportation, the noise problems of airplane lead to more attention with each passing day. The main ground testing equipments for research of aeroacoustic tests are aeroacoustic wind tunnel. In this paper, the basic demands has been described,the main problems in the aeroacoutic wind tunnel design has been considered, and the acoustic design methods of aeroacoustic wind tunnel has been pointed out. After reviewing the aero-acoustic design consideration,a pilot tunnel has been built. The background noise level with an open test section reveal an overall SPL of 76.5dB （A） （along 2m sideline） at flow speed of 80m/s.

关 键 词：航空声学 航空声学风洞 声学设计 噪声降低 气动噪声 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程] V216.5