Influence of the bubble-bubble interaction on destruction of encapsulated microbubbles under ultrasound
Lee, JY, Yasui, K, Tuziuti, T, Kozuka, T, Towata, A and Iida, Y (2009) Influence of the bubble-bubble interaction on destruction of encapsulated microbubbles under ultrasound Journal of Acoustical Society of America, 126 (3). pp. 973-982.
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Influence of the bubble-bubble interaction on the pulsation of encapsulated microbubbles has been studied by numerical simulations under the condition of the experiment reported by Chang et al. [IEEE Trans. Ultrason Ferroelectr. Freq. Control48, 161 (2001)]. It has been shown that the natural (resonance) frequency of a microbubble decreases considerably as the microbubble concentration increases to relatively high concentrations. At some concentration, the natural frequency may coincide with the driving frequency. Microbubble pulsation becomes milder as the microbubble concentration increases except at around the resonance condition due to the stronger bubble-bubble interaction. This may be one of the reasons why the threshold of acoustic pressure for destruction of an encapsulated microbubble increases as the microbubble concentration increases. A theoretical model for destruction has been proposed.
|Subjects :||Chemical and Process Engineering|
|Divisions :||Faculty of Engineering and Physical Sciences > Chemical and Process Engineering|
|Date :||September 2009|
|Identification Number :||10.1121/1.3179677|
|Additional Information :||Item not available from this repository|
|Depositing User :||Symplectic Elements|
|Date Deposited :||18 Aug 2016 14:39|
|Last Modified :||18 Aug 2016 14:39|
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