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A Condition Monitoring for Collapsing Bubble Mechanism for Sonoluminescence and Sonochemistry

Alhelfi, Ali Kadhim Hadi LU and Sundén, Bengt LU (2015) In Journal of Thermal Science and Engineering Apllications 7(2). p.8-021014
Abstract
The acoustic cavitation phenomenon is a source of energy for a wide range of applications such as sonoluminescence and sonochemistry. The behavior of a single bubble in liquids is an essential study for acoustic cavitation. The bubbles react with the pressure forces in liquids and reveal their full potential when periodically driven by acoustic waves. As a result of extreme compression of the bubble oscillation in an acoustic field, the bubble produces a very high pressure and temperature during collapse. The temperature may increase many thousands of Kelvin, and the pressure may approach up to hundreds of bar. Subsequently, short flashes can be emitted (sonoluminescence) and the high local temperatures and pressures induce chemical... (More)
The acoustic cavitation phenomenon is a source of energy for a wide range of applications such as sonoluminescence and sonochemistry. The behavior of a single bubble in liquids is an essential study for acoustic cavitation. The bubbles react with the pressure forces in liquids and reveal their full potential when periodically driven by acoustic waves. As a result of extreme compression of the bubble oscillation in an acoustic field, the bubble produces a very high pressure and temperature during collapse. The temperature may increase many thousands of Kelvin, and the pressure may approach up to hundreds of bar. Subsequently, short flashes can be emitted (sonoluminescence) and the high local temperatures and pressures induce chemical reactions under extreme conditions (sonochemistry). Different models have been presented to describe the bubble dynamics in acoustic cavitation. These studies are done through full numerical simulation of the compressible Navier–Stokes equations. This task is very complex and consumes much computation time. Several features of the cavitation fields remain unexplained. In the current model, all hydrodynamics forces acting on the bubble are considered in the typical solution. Bubble oscillation and its characteristics under the action of a sound wave are presented in order to improve and give a more comprehensive understanding of the phenomenon, which is considered to have a significant role in different areas of science and technology. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to specialist publication or newspaper
publication status
published
subject
keywords
sonoluminescence, bubble dynamics, sonochemistry, ultrasound, acoustic cavitation
categories
Popular Science
in
Journal of Thermal Science and Engineering Apllications
volume
7
issue
2
pages
8 - 021014
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • wos:000363384700014
  • scopus:84994462697
ISSN
1948-5093
DOI
10.1115/1.4029679
language
English
LU publication?
yes
id
92c09797-77c6-44e7-91fd-64669e27e379 (old id 5052188)
date added to LUP
2015-02-25 10:55:05
date last changed
2017-09-24 03:20:30
@misc{92c09797-77c6-44e7-91fd-64669e27e379,
  abstract     = {The acoustic cavitation phenomenon is a source of energy for a wide range of applications such as sonoluminescence and sonochemistry. The behavior of a single bubble in liquids is an essential study for acoustic cavitation. The bubbles react with the pressure forces in liquids and reveal their full potential when periodically driven by acoustic waves. As a result of extreme compression of the bubble oscillation in an acoustic field, the bubble produces a very high pressure and temperature during collapse. The temperature may increase many thousands of Kelvin, and the pressure may approach up to hundreds of bar. Subsequently, short flashes can be emitted (sonoluminescence) and the high local temperatures and pressures induce chemical reactions under extreme conditions (sonochemistry). Different models have been presented to describe the bubble dynamics in acoustic cavitation. These studies are done through full numerical simulation of the compressible Navier–Stokes equations. This task is very complex and consumes much computation time. Several features of the cavitation fields remain unexplained. In the current model, all hydrodynamics forces acting on the bubble are considered in the typical solution. Bubble oscillation and its characteristics under the action of a sound wave are presented in order to improve and give a more comprehensive understanding of the phenomenon, which is considered to have a significant role in different areas of science and technology.},
  author       = {Alhelfi, Ali Kadhim Hadi and Sundén, Bengt},
  issn         = {1948-5093},
  keyword      = {sonoluminescence,bubble dynamics,sonochemistry,ultrasound,acoustic cavitation},
  language     = {eng},
  number       = {2},
  pages        = {8--021014},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Thermal Science and Engineering Apllications},
  title        = {A Condition Monitoring for Collapsing Bubble Mechanism for Sonoluminescence and Sonochemistry},
  url          = {http://dx.doi.org/10.1115/1.4029679},
  volume       = {7},
  year         = {2015},
}