Possibility of upscaling for single bubble sonoluminescence at a low driving frequency
Possibility of upscaling for single bubble sonoluminescence at a low driving frequency
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DOI：
10.1143/jpsj.72.509
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发表时间：
2003-03-01
影响因子：
1.7
通讯作者：
Kwak, HY
中科院分区：
文献类型：
--
作者：
Jeon, JS;Lee, JY;Kwak, HY
实验测试了通过降低驱动频率来放大单泡声致发光的可能性，在水温23.5℃、驱动频率为12.926 kHz、驱动幅度为1.33atm时，气泡的最大气泡半径和膨胀比远小于瑞利-普莱塞特方程的预测值，因此这种方法不能很好地实现SL的放大。在超声场下观察到的气泡行为可解释为气泡相对于外加超声的特征时间的“松弛运动”。
Possibility Of Upscaling for single bubble sonoluminescence by reducing the driving frequency was tested experimentally, The maximum bubble radius and the expansion ratio obtained from an air bubble at a driving frequency of 12.926 kHz and driving amplitude of 1.33 atm at a water temperature of 23.5degreesC are considerably less than the predicted ones by the Rayleigh-Plesset equation so that the upscaling of SL cannot be achieved very much with this method. Observed bubble behavior under ultrasonic field may be explained as "relaxation motion" of a gas bubble to the characteristic time of the applied ultrasound.