The detection and control of stable and transient acoustic cavitation bubbles
Muthupandian Ashokkumar, Judy Lee, Yasuo Iida, Kyuichi Yasui, Teruyuki Kozuka, Toru Tuziuti, Atsuya Towata
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | ROYAL SOC CHEMISTRY | Published : 2009
Acoustic cavitation plays a significant role in many applications that include therapeutic medicine, sonochemsitry and materials processing. The type of cavitation bubbles generated, namely transient or stable (repetitive transient), is important for optimizing the efficiency of these applications. We report on a multibubble sonoluminescence (MBSL)-based experimental technique for the detection and the control of type of cavitation at low and high ultrasound frequencies. It is observed that the use of a horn-type sonicator operating at 20 kHz primarily generates transient cavitation bubbles, as reported earlier. However, the use of plate type transducers at low frequencies (25 and 37 kHz) ge..View full abstract
Awarded by Ministry of Education, Culture, Sports, Science and Technology, Japan
This work was supported by a Grant in Aid for Scientific Research (17310086) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. M. A. acknowledges the award of AIST Visiting Fellowship.