Comportement de bulles de cavitation dans un champ acoustique stationnaire
2013
This paper focuses on the study of acoustic cavitation induced micro bubbles in a standing waveguide filled with water. It is shown that the cylindrical geometry of the system used in this study allows the micro bubbles to self organize into particular patterns. At high pressure amplitudes, the cavitation bubbles tend to aggregate into well known cluster patterns and at relatively low pressure amplitudes, the cavitation micro bubbles aggregate into ring patterns. This study highlights that the shape of these ring patterns is directly related to the Bjerknes force distribution in the resonator. It is also shown that cavitation bubbles may exhibit spiraling behavior around this ring pattern. Mots clefs : Cavitation ; acoustique ; trajectoire
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