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	Acoustic trapping of particle in the near field of a resonant periodically structured stiff plate
	Cai, Feiyan; Meng, Long; Xin Cheng; Hairong Zheng
	2011
会议名称	Ultrasonics Symposium (IUS), 2011 IEEE International
会议地点	美国
英文摘要	We report the numerical analysis of the acoustic radiation forces exerted on a cylindrical brass particle near the surface of periodically structured brass plate. The radiation force is calculated by using the time-averaged momentum-flux tensor obtained with the finite-difference time-domain method. The result indicates that when the resonance of the structured plate occurs, this configuration has an interesting trapping effect, which essentially arises from the gradient force induced by vortex velocity field near the surface of structured plate. The radiation force is found to be larger than the corresponding gravity with source irradiance 22.4e4Pa at resonance frequency for the radius of brass cylinder around 0.1mm-1.6mm with a distance 0.11mm from the plate. This artificial structure may be of interest for acoustic manipulation and sorting in various complex mechanical systems.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/3518]
专题	深圳先进技术研究院_医工所
作者单位	2011
推荐引用方式 GB/T 7714	Cai, Feiyan,Meng, Long,Xin Cheng,et al. Acoustic trapping of particle in the near field of a resonant periodically structured stiff plate[C]. 见:Ultrasonics Symposium (IUS), 2011 IEEE International. 美国.

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