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。
Acoustical Experiment of Low noise Wall models for testing section 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) Screen and spllitter plates successfully suppress the edgetone, (3) The design way in reference [1] for low noise wall is very useful.
出处
《空气动力学学报》
CSCD
北大核心
2001年第1期62-65,共4页
Acta Aerodynamica Sinica
