文章基本信息

标题：Study on the Evaluation of Sound Speed in Ducts with Tube Banks
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作者：Kunihiko ISHIHARA ; Takanori MIYAMOTO ; Yuka YOSHIDA 等
期刊名称：Journal of Environment and Engineering
电子版ISSN：1880-988X
出版年度：2010
卷号：5
期号：2
页码：339-352
DOI：10.1299/jee.5.339
出版社：The Japan Society of Mechanical Engineers
摘要：As tube banks are set in a duct in a boiler and a heat exchanger, the resonance phenomenon or the self sustained tone are generated due to the interference between vortex shedding and acoustic characteristics of the duct. It is necessary to know the resonance frequency of the duct, namely sound speed, for avoiding any trouble that may arise. In general, it is said that the sound speed decreases in the duct with tube banks and an evaluation formula is given. However, this formula is obtained to apply to the perpendicular direction of the flow. We wanted to know whether this formula would be able to be applied to the flow direction and to various arrays of patterns or not. In this paper, the applicability limit of this expression is discussed by using FEM analysis and experiments.
关键词：Sound and Acoustic;Noise Control;Prediction;Wave;Sound Speed;Tube Bank