Acoustic streaming pattern induced by longitudinal ultrasonic vibrationin an open channel using particle imaging velocimetry

Acoustic streaming, which is induced in an open channel by a cylindrical exciter vibrating at 30 kHz , is experimentally investigated using particle imaging velocimetry. Induced streaming pattern and velocity field for the channel gap of 18 mm are presented. The symmetric distinctive steady rotation...

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Bibliographic Details
Published in:Applied physics letters 2006-10, Vol.89 (18), p.183505-183505-3
Main Authors: Loh, Byoung-Gook, Lee, Dong-Ryul, Kwon, Kijung
Format: Article
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Summary:Acoustic streaming, which is induced in an open channel by a cylindrical exciter vibrating at 30 kHz , is experimentally investigated using particle imaging velocimetry. Induced streaming pattern and velocity field for the channel gap of 18 mm are presented. The symmetric distinctive steady rotational flow with local eddies is observed. The maximum streaming velocity measured stands at 0.16 cm ∕ s with a vibration amplitude of 50 μ m at an excitation frequency of 30 kHz .
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2374683