Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound.
Insight is gained into about the processes governing cavitational activity and acoustic streaming induced by high frequency (500 kHz) ultrasound by the use of microelectrodes with short time resolution electrochemical equipment to allow monitoring of the activity of single cavitating bubbles. Curren...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2002
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| _version_ | 1797089255937277952 |
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| author | Maisonhaute, E Javier Del Campo, F Compton, R |
| author_facet | Maisonhaute, E Javier Del Campo, F Compton, R |
| author_sort | Maisonhaute, E |
| collection | OXFORD |
| description | Insight is gained into about the processes governing cavitational activity and acoustic streaming induced by high frequency (500 kHz) ultrasound by the use of microelectrodes with short time resolution electrochemical equipment to allow monitoring of the activity of single cavitating bubbles. Current transients are interpreted as showing the flux of solution towards the electrode surface due to microstreaming. In order to explain the current amplitude, a simplified model is produced. Important parameters such as bubble size and shape on the surface as well as the boundary layer thickness for microstreaming are taken into account. This model leads to the amplitude of the oscillations of the cavitating bubble. Introducing realistic bubble sizes, this amplitude is found to be in the order of 1 micron. The conclusions arising from this work allow a further interpretation of previous observations at millimeter scale electrodes. |
| first_indexed | 2024-03-07T03:01:45Z |
| format | Journal article |
| id | oxford-uuid:b12dc62b-56ba-42d0-a560-7136c3a28c4c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:01:45Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:b12dc62b-56ba-42d0-a560-7136c3a28c4c2022-03-27T04:02:07ZMicroelectrode study of single cavitational bubbles induced by 500 kHz ultrasound.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b12dc62b-56ba-42d0-a560-7136c3a28c4cEnglishSymplectic Elements at Oxford2002Maisonhaute, EJavier Del Campo, FCompton, RInsight is gained into about the processes governing cavitational activity and acoustic streaming induced by high frequency (500 kHz) ultrasound by the use of microelectrodes with short time resolution electrochemical equipment to allow monitoring of the activity of single cavitating bubbles. Current transients are interpreted as showing the flux of solution towards the electrode surface due to microstreaming. In order to explain the current amplitude, a simplified model is produced. Important parameters such as bubble size and shape on the surface as well as the boundary layer thickness for microstreaming are taken into account. This model leads to the amplitude of the oscillations of the cavitating bubble. Introducing realistic bubble sizes, this amplitude is found to be in the order of 1 micron. The conclusions arising from this work allow a further interpretation of previous observations at millimeter scale electrodes. |
| spellingShingle | Maisonhaute, E Javier Del Campo, F Compton, R Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title | Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title_full | Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title_fullStr | Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title_full_unstemmed | Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title_short | Microelectrode study of single cavitational bubbles induced by 500 kHz ultrasound. |
| title_sort | microelectrode study of single cavitational bubbles induced by 500 khz ultrasound |
| work_keys_str_mv | AT maisonhautee microelectrodestudyofsinglecavitationalbubblesinducedby500khzultrasound AT javierdelcampof microelectrodestudyofsinglecavitationalbubblesinducedby500khzultrasound AT comptonr microelectrodestudyofsinglecavitationalbubblesinducedby500khzultrasound |