Please use this identifier to cite or link to this item:
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5301Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Campos-Pozuelo, Cleofé | - |
| dc.creator | Granger, C. | - |
| dc.creator | Vanhille, Christian | - |
| dc.creator | Dubus, Bertrand | - |
| dc.date | 2008-06-25T09:35:02Z | - |
| dc.date | 2008-06-25T09:35:02Z | - |
| dc.date | 2007-12 | - |
| dc.date.accessioned | 2017-01-31T01:48:32Z | - |
| dc.date.available | 2017-01-31T01:48:32Z | - |
| dc.identifier | XIX Congreso Internacional de Acústica (ICA2007) | - |
| dc.identifier | http://hdl.handle.net/10261/5301 | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5301 | - |
| dc.description | Ponencia presentada en el XIX Congreso Internacional de Acústica (ICA2007), Madrid, 2-7 Sep 2007.-- PACS: 43.25.Yw. | - |
| dc.description | The nonlinear self-focusing of the pressure field with onset of cavitation is experimentally and theoretically analysed in the kHz range. Self-focusing in the cavitation field has already been reported above 500 kHz and it was attributed to the non-uniformity of bubble density. In this case, bubble density remains small, non-linearity is weak and focal distance remains much larger than the acoustic wavelength in the liquid. | - |
| dc.description | In this work, inertial cavitation field radiated by a 20 kHz sonotrode-type transducer is considered. A cone like bubble structure is established. This structure is very repetitive and selfconstructs in any container when a piston like emitter is used. The acoustic field is directly evaluated by using a BR&K. hydrophone and averaged pressure waveforms are analysed. The number of chosen samples is high enough to have stable measured pressure results (including nonlinear distortion). A self-focusing effect is observed with a focal distance comparable to the acoustic wavelength in the liquid. Models accounting for the high bubble density and strong non-linear effects are proposed. Theoretical predictions are compared to experiments and discussed. | - |
| dc.description | Peer reviewed | - |
| dc.format | 7285 bytes | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Sociedad Española de Acústica | - |
| dc.relation | ICA2007 | - |
| dc.relation | NLA-01-006-IP | - |
| dc.rights | openAccess | - |
| dc.subject | Cavitation field | - |
| dc.subject | Nonlinear acoustics | - |
| dc.subject | Pressure field | - |
| dc.subject | Nonlinear self-focusing | - |
| dc.subject | Bubbly media | - |
| dc.subject | Acoustic wavelength | - |
| dc.subject | kHz range | - |
| dc.subject | Modelisation | - |
| dc.title | Experimental observation of nonlinear self-focusing in the cavitation field | - |
| dc.type | Comunicación de congreso | - |
| Appears in Collections: | Digital Csic | |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.