噪声与振动控制2012，Vol.32Issue(3)：113-117,5.DOI:10.3969/j.issn.1006-1355.2012.03.026
封闭空间低频气流调制器喉道的声波特性
Acoustic Characteristics of the Throat of the Low-frequency Airflow Modulator within Closed Space
董明荣 1陈克安 1孙德玉 1方厚林1
作者信息
- 1. 西北工业大学航海学院环境工程系,西安710072
- 折叠
摘要
Abstract
The gas chamber pressure, throat flow rate and the acoustic characteristics of an airflow modulator were analyzed by using the theory of fluid mechanics and aeroacoustics. The computation results are compared with the experimental results. The changes of the throat acoustic amplitude with gas supply pressure, gas supply flow rate and working frequencies were given. The results show that the computation results can agree with the experimental results, and the throat acoustic amplitude can be improved with the increase of the gas supply pressure and flow rate.关键词
声学/气流调制器/喉道/低频Key words
acoustics / airflow modulator/ throat/ low-frequency分类
通用工业技术引用本文复制引用
董明荣,陈克安,孙德玉,方厚林..封闭空间低频气流调制器喉道的声波特性[J].噪声与振动控制,2012,32(3):113-117,5.
