P3. Direct observation of the diameter distribution of cavitating bubbles in SDS surfactant solutions(Poster Presentation)
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概要
- 論文の詳細を見る
High-speed shadowgraphy of cavitation bubbles was observed in SDS surfactant solutions at various concentrations at ultrasonic frequencies of 37 kHz, 87 kHz and 123 kHz. Maximum diameter of cavitation bubbles was estimated from the movies at the frame rate of a million per second. The histogram of the maximum diameter showed significant decrease in the number of large-size bubbles in surfactant solutions compared to in water. This decrease was pronounced at higher frequencies at 1 mM SDS solutions. The concentration dependence indicated that the decrease was most marked at 5 mM at the frequency of 87 kHz. The results were elucidated in terms of the inhibition of bubble coalescence, which are in agreement with previous works by Ashokkumar's group.
- 日本ソノケミストリー学会の論文
- 2011-10-15
著者
-
Choi Pak-kon
Department Of Physics Meiji University
-
Deno Shota
Department of Physics, Meiji University
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