汽车工程学报2016，Vol.6Issue(6)：437-441,5.DOI:10.3969/j.issn.2095-1469.2016.06.08
简单抗性消声器气流再生噪声研究
Study on Regeneration Noise of Simple Reactive Muffler
摘要
Abstract
The regeneration noise mechanism and influence factors of simple reactive muffler were studied from the point of view of sound source type based on CFD and Virtual.Lab. The results show that flow regeneration noise is primarily caused by the dipole and quadrupole source and it becomes larger when the flow velocity and offset distance of outlet pipe are increased. The quadrupole is the main source of flow regeneration noise in the reactive muffler when compared with the dipole, especially in the low frequency region.Finally the conclusion drawn from the comparison of simulation results of the two methods shows that the two source types are irrelevant. The paper provides a new idea to calculate the flow regeneration noise.关键词
消声器/偶极子/四极子/气流再生噪声Key words
muffler/dipole source/quadrupole source/regeneration noise分类
交通工程引用本文复制引用
高小新,匡芳,褚志刚..简单抗性消声器气流再生噪声研究[J].汽车工程学报,2016,6(6):437-441,5.基金项目
重庆市重大应用及发展计划项目 （）
