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首页> 外文期刊>Journal of Aerospace Sciences and Technologies >ACOUSTIC FIELD IN A DUCT RESULTING FROM VORTEX SHEDDING FROM MULTIPLE RESTRICTORS
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ACOUSTIC FIELD IN A DUCT RESULTING FROM VORTEX SHEDDING FROM MULTIPLE RESTRICTORS

机译：多个限制器的涡旋切碎产生的管道中的声场

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摘要

This paper reports an experimental investigation of the acoustic field in a duct due to vortex shedding from multiple restrictors. The spacing between two restrictors was varied very closely in these experiments. It was observed that high amplitude acoustic field was established in the duct when the restrictors were closely spaced and that the highest amplitude of acoustic oscillations occurred for a certain specific spacing of the restrictors depending upon other conditions. It was also observed that the dominant frequencies locked on to the different possible natural acoustic modes that could be established in the duct.
机译：本文报告了由于多个限流器产生的涡流而引起的导管内声场的实验研究。在这些实验中，两个限流器之间的间距变化非常接近。观察到，当限制器紧密间隔时，在管道中建立了高振幅的声场，并且取决于其他条件，对于限制器的特定特定间隔，发生了最大的声振荡振幅。还观察到，主导频率锁定在管道中可能建立的不同可能的自然声学模式上。

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