Micro-jet Formation from Cavitation Bubbles
Author Information
Author(s): Jaka Mur, Alexander Bußmann, Thomas Paula, Stefan Adami, Nikolaus A. Adams, Rok Petkovsek, Claus-Dieter Ohl
Primary Institution: Otto-von-Guericke University Magdeburg
Hypothesis
How does the interaction between a spherical and toroidal cavitation bubble affect micro-jet formation?
Conclusion
The study shows that micro-jets can reach velocities up to 1000 m/s due to the interaction of a spherical and toroidal cavitation bubble.
Supporting Evidence
- Micro-jets were observed to form on the upper side of the spherical bubble shortly after the toroidal bubble was initiated.
- Jet velocities reached up to 1000 m/s in the anti-phase scenario.
- The presence of secondary cavitation significantly enhanced the micro-jet formation process.
- After the collapse of the spherical bubble, a rebound phase was observed, leading to an increase in bubble volume.
Takeaway
When two bubbles interact, they can create tiny jets of liquid that move really fast, which could be useful for things like medical treatments.
Methodology
The study used both experimental and numerical methods to investigate the interaction between a spherical and a toroidal cavitation bubble.
Limitations
The study may not fully capture the complexities of bubble dynamics due to the idealized conditions in simulations.
Digital Object Identifier (DOI)
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