| Presentation | 2012-08-27 Sonoluminescence and bubble dynamics in viscous liquids Pak-Kon Choi, Yuuta Takeuchi, Takaaki Yamada, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multibubble sonoluminescence pulses of Na and continuum emissions were measured from NaCl-ethylene glycol solution saturated with Xe at 28 kHz. The Na emission consisted of multiple-peak pulses and single pulses. The intrinsic pulse width estimated from single pulses was 0.37 ns, which differs from 10-165 ns obtained by previous work. High-speed shadowgraphs of bubble dynamics and high-speed movies (32,000 fps) of sonoluminescence were observed. The observations suggest that the multiple-peak pulse is due to the superposition of single peaks resulting from bubbles fragmented from a characteristic bubble which repeats the fragmentation and coalescence. Characteristic spatial distribution of sonoluminescence was observed in aqueous solution of glycerol using a horn-type transducer. The distribution of sonoluminescence exhibited a sphere and a wedge shape at low and high acoustic pressures, respectively. The results of acoustic emission were used to interpret the difference in bubble dynamics in water and viscous liquid. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sonoluminescence / Na emission / bubble dynamics / ethylene glycol / glycerol / viscous liquid |
| Paper # | US2012-35 |
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| Committee | US |
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| Conference Date | 2012/8/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Ultrasonics (US) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sonoluminescence and bubble dynamics in viscous liquids |
| Sub Title (in English) | |
| Keyword(1) | Sonoluminescence |
| Keyword(2) | Na emission |
| Keyword(3) | bubble dynamics |
| Keyword(4) | ethylene glycol |
| Keyword(5) | glycerol |
| Keyword(6) | viscous liquid |
| 1st Author's Name | Pak-Kon Choi |
| 1st Author's Affiliation | Department of Physics, Meiji University() |
| 2nd Author's Name | Yuuta Takeuchi |
| 2nd Author's Affiliation | Department of Physics, Meiji University |
| 3rd Author's Name | Takaaki Yamada |
| 3rd Author's Affiliation | Department of Physics, Meiji University |
| Date | 2012-08-27 |
| Paper # | US2012-35 |
| Volume (vol) | vol.112 |
| Number (no) | 186 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |