Bubble size distribution estimation via void rate dissipation in gas saturated liquid. Application to ultrasonic cavitation bubble fields
Bubble size distribution estimation via void rate dissipation in gas saturated liquid. Application to ultrasonic cavitation bubble fields
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DOI：
10.1051/epjap:2002047
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发表时间：
2002-07-01
影响因子：
1
通讯作者：
Frohly, J
中科院分区：
文献类型：
--
作者：
Labouret, S;Frohly, J
本文介绍了一种超高频方法，它可以用来研究气泡半径小于平衡半径的气泡云的气泡尺寸分布。它是基于分析的空隙率耗散声照射后，被切断的气泡溶解方面。该方法的实验评估已在空气饱和的水中进行，在308 kHz的稳态声场中产生的空化气泡云。的尺寸分布实现范围从19 μ m到59 μ m，并允许遵循声压和照射持续时间对它们的影响。考虑到气泡聚结发生在气泡上升过程中的声辐射结束后，原始分布已定性细致入微的自由气泡聚结的概率模型的开发。
A hyper-frequency method enabling to investigate into the bubble size distribution of a bubble cloud in which bubble radii are lower than the equilibrium one is displayed. It is based on analysing the void rate dissipation after the acoustic irradiation is switched off in terms of bubble dissolution. The experimental evaluation of this method has been performed in air saturated water with cavitation bubble cloud generated in a 308 kHz stationary acoustic field. The size distributions achieve range from 19 mum to 59 mum and allow to follow the influences of both the acoustic pressure and the irradiation duration on them. By taking into account the bubble coalescences occurring during the bubble rise after the end of the acoustic irradiation, the raw distributions have been qualitatively nuanced thanks to the exploitation of a probabilistic model of free bubble coalescence.