Cavitation field from a horn—A new model

The cavitation field from a horn-type transducer is experimentally probed by the optical method.Based on these observations,we propose a model of the field which hypothesizes that most violent caviation bubbles originate from the vibrating surface and there-from fast drift to the near liquid region....

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Bibliographic Details
Published in:Science China. Physics, mechanics & astronomy mechanics & astronomy, 2011, Vol.54 (1), p.74-78
Main Authors: Ying, ChongFu, Bai, LiXin, Li, Chao, Deng, JingJun
Format: Article
Language:English
Subjects:
Acoustic waves
Astronomy
Bubbles
Cavitation
Classical and Continuum Physics
Observations and Techniques
Optics
Physics
Physics and Astronomy
Research Paper
Transducers
传感器
光学探测
屏蔽作用
换能器
液相区
空化场
表面气泡
迁移过程
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Summary:The cavitation field from a horn-type transducer is experimentally probed by the optical method.Based on these observations,we propose a model of the field which hypothesizes that most violent caviation bubbles originate from the vibrating surface and there-from fast drift to the near liquid region.These bubbles are chiefly responsible for the practical applications of cavitation for a large power input to the transducer.During migration they become weakened.Cavitation bubbles are also produced in the liquid region by the acoustic wave directly emitted by the transducer,but these bubbles are weak due to the shielding effect of the bubbles clinging to the transducer vibrating surface.Consequently,only weak cavitation bubbles exist in the far liquid region.
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-010-4179-7