Multibubble Sonoluminescence from a Theoretical Perspective
In the present review, complexity in multibubble sonoluminescence (MBSL) is discussed. At relatively low ultrasonic frequency, a cavitation bubble is filled mostly with water vapor at relatively high acoustic amplitude which results in OH-line emission by chemiluminescence as well as emissions from...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-07-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/26/15/4624 |
| _version_ | 1797525284731224064 |
|---|---|
| author | Kyuichi Yasui |
| author_facet | Kyuichi Yasui |
| author_sort | Kyuichi Yasui |
| collection | DOAJ |
| description | In the present review, complexity in multibubble sonoluminescence (MBSL) is discussed. At relatively low ultrasonic frequency, a cavitation bubble is filled mostly with water vapor at relatively high acoustic amplitude which results in OH-line emission by chemiluminescence as well as emissions from weakly ionized plasma formed inside a bubble at the end of the violent bubble collapse. At relatively high ultrasonic frequency or at relatively low acoustic amplitude at relatively low ultrasonic frequency, a cavitation bubble is mostly filled with noncondensable gases such as air or argon at the end of the bubble collapse, which results in relatively high bubble temperature and light emissions from plasma formed inside a bubble. Ionization potential lowering for atoms and molecules occurs due to the extremely high density inside a bubble at the end of the violent bubble collapse, which is one of the main reasons for the plasma formation inside a bubble in addition to the high bubble temperature due to quasi-adiabatic compression of a bubble, where “quasi” means that appreciable thermal conduction takes place between the heated interior of a bubble and the surrounding liquid. Due to bubble–bubble interaction, liquid droplets enter bubbles at the bubble collapse, which results in sodium-line emission. |
| first_indexed | 2024-03-10T09:11:36Z |
| format | Article |
| id | doaj.art-ede1096ccd2441768f561e9c1ba3725f |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T09:11:36Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ede1096ccd2441768f561e9c1ba3725f2023-11-22T06:00:51ZengMDPI AGMolecules1420-30492021-07-012615462410.3390/molecules26154624Multibubble Sonoluminescence from a Theoretical PerspectiveKyuichi Yasui0National Institute of Advanced Industrial Science and Technology (AIST), Nagoya 463-8560, JapanIn the present review, complexity in multibubble sonoluminescence (MBSL) is discussed. At relatively low ultrasonic frequency, a cavitation bubble is filled mostly with water vapor at relatively high acoustic amplitude which results in OH-line emission by chemiluminescence as well as emissions from weakly ionized plasma formed inside a bubble at the end of the violent bubble collapse. At relatively high ultrasonic frequency or at relatively low acoustic amplitude at relatively low ultrasonic frequency, a cavitation bubble is mostly filled with noncondensable gases such as air or argon at the end of the bubble collapse, which results in relatively high bubble temperature and light emissions from plasma formed inside a bubble. Ionization potential lowering for atoms and molecules occurs due to the extremely high density inside a bubble at the end of the violent bubble collapse, which is one of the main reasons for the plasma formation inside a bubble in addition to the high bubble temperature due to quasi-adiabatic compression of a bubble, where “quasi” means that appreciable thermal conduction takes place between the heated interior of a bubble and the surrounding liquid. Due to bubble–bubble interaction, liquid droplets enter bubbles at the bubble collapse, which results in sodium-line emission.https://www.mdpi.com/1420-3049/26/15/4624vaporous bubblegaseous bubbleOH chemiluminescenceplasmaionization potential loweringNa-line emission |
| spellingShingle | Kyuichi Yasui Multibubble Sonoluminescence from a Theoretical Perspective Molecules vaporous bubble gaseous bubble OH chemiluminescence plasma ionization potential lowering Na-line emission |
| title | Multibubble Sonoluminescence from a Theoretical Perspective |
| title_full | Multibubble Sonoluminescence from a Theoretical Perspective |
| title_fullStr | Multibubble Sonoluminescence from a Theoretical Perspective |
| title_full_unstemmed | Multibubble Sonoluminescence from a Theoretical Perspective |
| title_short | Multibubble Sonoluminescence from a Theoretical Perspective |
| title_sort | multibubble sonoluminescence from a theoretical perspective |
| topic | vaporous bubble gaseous bubble OH chemiluminescence plasma ionization potential lowering Na-line emission |
| url | https://www.mdpi.com/1420-3049/26/15/4624 |
| work_keys_str_mv | AT kyuichiyasui multibubblesonoluminescencefromatheoreticalperspective |