14th European Sonochemistry Society meeting (ESS 14) will be held at Avignon, France during July, 2014.
The details about this conference will be updated in the future.
Sunday, 11 November 2012
1st Meeting of the Asia-Oceania Society of Sonochemistry
Conference website
http://sono.chemistry.unimelb.edu.au/aoss/
1st Meeting of the Asia-Oceania Society of Sonochemistry will be held at University of Melbourne, Australia during July 10-12, 2013.
Important dates :
Abstract submission dateline: Feb 28, 2013
Acceptance notification: March 31, 2013
The organizing committee of the society invites international sonochemists to the
first meeting of the Asia-Oceanic Society of Sonochemistry to be held in The
University of Melbourne, Melbourne Australia during July 10-12, 2013. The
meeting aims to provide a platform for academic presentations and discussions on
the following fields:
• Cavitation, Sonochemistry & Sonoluminescence
• Sonoprocessing (e.g.: Dairy, Food, etc.)
• Materials Science (e.g.: Colloids and Nanomaterials, etc.)
• Environmental Sonochemistry
• Ultrasound in Medical Applications
• Other Related Areas
The program will include plenary lectures, oral
as well as poster presentations.
http://sono.chemistry.unimelb.edu.au/aoss/
1st Meeting of the Asia-Oceania Society of Sonochemistry will be held at University of Melbourne, Australia during July 10-12, 2013.
Important dates :
Abstract submission dateline: Feb 28, 2013
Acceptance notification: March 31, 2013
The organizing committee of the society invites international sonochemists to the
first meeting of the Asia-Oceanic Society of Sonochemistry to be held in The
University of Melbourne, Melbourne Australia during July 10-12, 2013. The
meeting aims to provide a platform for academic presentations and discussions on
the following fields:
• Cavitation, Sonochemistry & Sonoluminescence
• Sonoprocessing (e.g.: Dairy, Food, etc.)
• Materials Science (e.g.: Colloids and Nanomaterials, etc.)
• Environmental Sonochemistry
• Ultrasound in Medical Applications
• Other Related Areas
The program will include plenary lectures, oral
as well as poster presentations.
Thursday, 18 October 2012
A bubble journal: Bubble Science, Engineering & Technology
Bubble Science, Engineering & Technology
ISSN 1758-8960, Online ISSN: 1758-8979
Publisher: Maney publishing
Established in 2008
2 issues per year
Journal website
http://www.ingentaconnect.com/content/maney/bub
Editor:
Professor Mohan J Edirisinghe (University College London, UK)
Co-editor:
Professor Carlos Martinez (Purdue University, USA)
Introduction of Journal (directly adapted from their website)
Bubble Science, Engineering and Technology is a unique multidisciplinary resource which publishes high quality innovative research on the generation, properties and applications of bubbles in the life and physical sciences, engineering and medicine.
There is rapidly growing interest in the production and control of bubbles in numerous disciplines. Suspensions of stable gas microbubbles play a vital role in the food, cosmetics and pharmaceutical industries, as well as in biotechnology, environmental engineering, and minerals and materials processing. In molecular biology, microbubbles are central to the mesoscale self-assembly of smart materials, microfabrication and DNA-driven assembly. Microbubbles have also shown great promise in therapeutic applications such as targeted drug delivery, gene therapy, thrombolysis and ultrasound surgery, and are the most effective type of contrast agent available for ultrasound radiography.
Recent developments in processing, diagnostics and therapeutics have generated a greatly increased need for advanced preparation technologies that provide a high degree of control over microbubble characteristics. Achieving these objectives requires multidisciplinary collaboration and Bubble Science, Engineering and Technology provides an effective resource for researchers in bubbles research to facilitate these interactions.
Friday, 25 May 2012
A list of conferences on cavitation and bubble dynamics
This list will be updated. The conference is ordered by their date.
14th European Sonochemistry Society meeting (ESS 14) (July, 2014, Avignon, France)
8th International Symposium on Heat Transfer (Oct 21-24, 2012, Tsinghua University, China)
2014
14th European Sonochemistry Society meeting (ESS 14) (July, 2014, Avignon, France)
2013
1st Meeting of the Asia-Oceania Society of Sonochemistry (July 10-12, 2013, University of Melbourne, Australia)
2013 International conference on multiphase flow (May, 2013, Jeju Island, South Korea)
2012
8th International Symposium on Heat Transfer (Oct 21-24, 2012, Tsinghua University, China)
26th IAHR Symposium on Hydraulic Machinery and Systems (August 19-23, 2012, Tsinghua University, Beijing, China)
10th International conference on hydrodynamics (Oct 1-4, 2012, Saint-Petersburg, Russia)
10th International conference on hydrodynamics (Oct 1-4, 2012, Saint-Petersburg, Russia)
http://www.ichd2012.org/
The Conference is held by Krylov Shipbuilding Research Institute (KSRI) – one of the major Shipbuilding and Hydrodynamic research centers in the world.
Important dates
Receipt of abstracts 1st of March, 2012
Notification of provisional acceptance 25 of March, 2012
Receipt of full length paper 20th of May, 2012
Notification of final acceptance 1st of June, 2012
Early registration 20th of May, 2012
The Conference is held by Krylov Shipbuilding Research Institute (KSRI) – one of the major Shipbuilding and Hydrodynamic research centers in the world.
Important dates
Receipt of abstracts 1st of March, 2012
Notification of provisional acceptance 25 of March, 2012
Receipt of full length paper 20th of May, 2012
Notification of final acceptance 1st of June, 2012
Early registration 20th of May, 2012
Bubbles in micro- or zero- gravity
Bubbles in micro- or zero- gravity show some striking behaviors. Such experiments are often conducted on the International Space Station or parabolic flights.
During April, 2012, Don Pettit, a NASA astronaut, conducted an experiment by injecting bubbles into bubbles on the International Space Station. Without gravity, the rim between bubbles becomes very thick and can also last for a long time. Don Pettit also used laser to reflect different layers of bubbles.
The bubbles made by Don Pettit are usually referred as antibubble, which is is a thin film of air surrounding liquid.
In 2010, Japanese astronaut Naoko Yamazaki mixed red tropical fruit juice with soap and blew shiny red bubbles. Because of zero-gravity environment, color pigments can spread evenly around a bubble in space. But on the earth, due to the gravity, the bubble will be colorless with the same recipe.
"Flash&Splash" team, officially affiliated with the Cavitation Research Group at EPFL (École Polytechnique Fédérale de Lausanne, Switzerland), has conducted a series of experiments of fundamental research on bubbles on the parabolic flights. Water drops with centimetric diameters were produced by the micro-gravity platform (Obreschkow et al., 2008, p.15). An electrode was used to generate cavitation bubbles. The shock wave propagation in this confined water drops was visualized and studied. Bubble collapse under variable gravity was also compared.
During April, 2012, Don Pettit, a NASA astronaut, conducted an experiment by injecting bubbles into bubbles on the International Space Station. Without gravity, the rim between bubbles becomes very thick and can also last for a long time. Don Pettit also used laser to reflect different layers of bubbles.
Bubble experiment made by Don Pettit on the International Space Station. From Youtube. Also reported by DailyMail.
The bubbles made by Don Pettit are usually referred as antibubble, which is is a thin film of air surrounding liquid.
A schematic show of antibubble. Source
In 2010, Japanese astronaut Naoko Yamazaki mixed red tropical fruit juice with soap and blew shiny red bubbles. Because of zero-gravity environment, color pigments can spread evenly around a bubble in space. But on the earth, due to the gravity, the bubble will be colorless with the same recipe.
"Flash&Splash" team, officially affiliated with the Cavitation Research Group at EPFL (École Polytechnique Fédérale de Lausanne, Switzerland), has conducted a series of experiments of fundamental research on bubbles on the parabolic flights. Water drops with centimetric diameters were produced by the micro-gravity platform (Obreschkow et al., 2008, p.15). An electrode was used to generate cavitation bubbles. The shock wave propagation in this confined water drops was visualized and studied. Bubble collapse under variable gravity was also compared.
Parabolic flights by Airbus A300 zero-g managed by European Space Agency (ESA). From Flash & Splash. Link Also refer to Obreschkow et al. (2008, Fig.1a).
Cavitation bubbles inside water drops in microgravity. Obreschkow et al. (2007). Download link
Cavitation bubbles in variable gravity. From EPFL webiste Link. Also refer to Obreschkow et al. (2011).
Based on the data of bubble sonoluminescence collected on parabolic research aircraft of NASA, Tom Matula (Applied Physical Laboratory, University of Washington, USA) concluded that the sonoluminescence intensity increases in microgravity.
References
Matula, T.J. (2000). Single-bubble sonoluminescence in microgravity, Ultrasonics, Volume 38, Issues 1–8, March 2000, Pages 559–565.
Obreschkow, D. et al. (2011). Universal Scaling Law for Jets of Collapsing Bubbles, PRL 107, 204501 (2011). pdf
Obreschkow, D. et al. (2008). Microgravity experiment: The fate of confined shockwaves, Proceedings o WIMRC cavitation forum 2008, July,7-9, Coventry, UK, pp.15-19.
Obreschkow, D. et al. (2007). Cavitation bubbles inside water drops in microgravity, APS DFD Movie contest.
Supersonic phenomenon in the kitchen
According to a recent study (Gekle, et al., 2010), one can make a supersonic air jet flow by just dropping a solid object into water in the kitchen. The "jet" to scientists usually refers to a high-speed flowing column of material (e.g. air or water). The jet is quite common in daily life e.g. water out of a hose for cleaning. The aircraft is usually pushed forward by a supersonic air flow out from the back of engine, termed turbo-jet.
When we drop a heavy solid object into a liquid (e.g. a marble into a bowl of water), three jets will be generated during the process (Lathrop, 2010): one of upward supersonic air jet, an upward water jet and a downward water jet toward the object (e.g. marble in this case). When the air escaping through the "neck" formed during this process, it can be greatly accelerated even to supersonic flow by the pressure difference between the collapsing cavity and outer space (Gekle, et al., 2010).
In Gekle, et al. (2010), a carefully controlled disk is used. The disk is pushed into the water with certain speed and the whole process was recorded using high-speed camera. The physical process is similar like those described above. Fine smoke particles were used to measure the speed of the air flow. Disk with different shapes were also used to study the collapse of non-symmetric cavities (Enriquez et al., 2010).
You can try it in your own kitchen!
When we drop a heavy solid object into a liquid (e.g. a marble into a bowl of water), three jets will be generated during the process (Lathrop, 2010): one of upward supersonic air jet, an upward water jet and a downward water jet toward the object (e.g. marble in this case). When the air escaping through the "neck" formed during this process, it can be greatly accelerated even to supersonic flow by the pressure difference between the collapsing cavity and outer space (Gekle, et al., 2010).
The impact of a heavy object on a fluid surface causes a sequence of events leading to the creation of three jets. From Lathrop (2010). Link
In Gekle, et al. (2010), a carefully controlled disk is used. The disk is pushed into the water with certain speed and the whole process was recorded using high-speed camera. The physical process is similar like those described above. Fine smoke particles were used to measure the speed of the air flow. Disk with different shapes were also used to study the collapse of non-symmetric cavities (Enriquez et al., 2010).
Supersonic air flow. From Gekle et al. (2010, Fig.1).
Collapse of non-symmetric cavities. From Enriquez et al. (2010). Link
Recorded sequences from the top of disk during collapse of non-symmetric cavities. From Enriquez et al. (2010). More information is available on the website of Physics of Fluids Group, University of Twente, Netherlands. Link
Recorded sequences from the top of disk during collapse of non-symmetric cavities. From Enriquez et al. (2010). More information is available on the website of Physics of Fluids Group, University of Twente, Netherlands. Link
You can try it in your own kitchen!
References
J. Eggers and E. Villermaux, Rep. Prog. Phys. 71, 036601 (2008).
Enriquez, O.R. et al. (2010). Collapse of nonaxisymmetric cavities, Phys. Fluids 22, 091104. Link
J. Eggers and E. Villermaux, Rep. Prog. Phys. 71, 036601 (2008).
Enriquez, O.R. et al. (2010). Collapse of nonaxisymmetric cavities, Phys. Fluids 22, 091104. Link
D. P. Lathrop, Making a supersonic jet in your kitchen, Physics 3, 4 (2010). Link
S. Gekle, I. R. Peters, J. M. Gordillo, D. van der Meer, and D. Lohse, Phys. Rev. Lett. 104, 024501 (2010).
S. Gekle, J. M. Gordillo, D. van der Meer, and D. Lohse, Phys. Rev. Lett. 102, 034502 (2009).
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