Multibubble sonoluminescence enhancement by fluid flow
Multibubble sonoluminescence enhancement by fluid flow
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DOI：
10.1016/j.ultras.2006.05.022
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发表时间：
2006-12-22
期刊：
影响因子：
4.2
通讯作者：
Hayashi, Shigeo
中科院分区：
文献类型：
--
作者：
Hatanaka, Shin-ichi;Mitome, Hideto;Hayashi, Shigeo
在适当的条件下，强迫流体流动可以引起多泡声致发光的增强。循环器的定向流的效果类似于搅拌器的旋转流的效果。增强的机理是两种流动都阻止了空化泡的聚并和聚集，这是导致SL淬灭的原因。在较高的超声功率下，鲁米诺水溶液中的声致化学发光（SCL）强度随流速的增加比在蒸馏水中的显着。而在低超声功率范围内，SL和SCL的强度随流速的增加而减小。因此，存在与超声功率和频率相关的最佳流速。(c)2006年由Elsevier B出版。诉
Forced fluid flow can cause the enhancement of multibubble sonoluminescence (SL) under suitable conditions. The effect of directional flow with a circulator is similar to that of rotating flow with a stirrer. The mechanism of the enhancement is that both flows prevent cavitation bubbles from coalescing and clustering, which are responsible for the quenching of SL. The intensity of sonochemiluminescence (SCL) in an aqueous luminol solution increases with flow speed at higher ultrasonic powers more significantly than that of SL in distilled water. However, in the range of low ultrasonic power, the intensities of SL and SCL decrease with flow speed. Therefore, an optimum flow speed exists in relation to ultrasonic power and frequency. (c) 2006 Published by Elsevier B. V.