跨声速风洞试验段低噪声壁板模型的声学试验

Acoustical experiment of low noise wall models for testing section in transonic wind tunnels

摘要: 介绍了跨声速风洞试验段低噪声壁板模型的声学试验。实验结果表明：(1)斜孔所产生的边缘音是最主要的声源；(2)用加网和加隔片都是抑制边缘音的有效方法；(3)文献1介绍的低噪声壁板的设计方法具有实用性。

Abstract: Acoustical Experiment of Low noise Wall models for testingsection in transonic Wind tunnels is introduced in this paper. The Experimental results are provided to show that: (1) edgetone generated by slanted hole configuration is main sound source, (2) Scr