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Dynamics of cavitation bubbles
Canadian Journal of Physics, 1976The dynamics of an adiabatic gas–filled bubble in a viscous liquid is studied when subjected to a tension wave produced by a shock wave reflected off the water surface. Below a critical bubble size the water does not cavitate. Numerical solutions show that cavitation causes severe prolongation and attenuation of the original tension wave.
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Single cavitation bubble luminescence
AIP Conference Proceedings, 2000Experimental studies at the Cavendish Laboratory [1] and the Drittes Physikalisches Institut, Gottingen [2] have shown the emission of light from the vigorous collapse of a cavitation bubble near a rigid boundary. The Gottingen studies, using laser produced bubbles, indicate that a rapid increase in the emission of light occurs beyond a critical “stand-
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Determination of cavitation bubble lifetimes using bubble-bubble coalescence data
The Journal of the Acoustical Society of America, 2008The effect that surface-active solutes, such as aliphatic alcohols and sodium dodecylsulfate, have on the extent of bubble coalescence in liquids under different sonication conditions has been investigated by measuring the volume change of the solution following a period of sonication.
Franz Grieser +2 more
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MATHEMATCAL THEORY OF CAVITATION BUBBLE DYNNAMICS
Australian Journal of Statistics, 1988This essay is a summary of some of the mathematical developments used to help elucidate the mechanisms responsible for cavitation damage to hydraulic equipment. The theory presented in this paper is entirely deterministic, although one should be aware of the stochastic character of the cavitation inception process and the inherent randomness of ...
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Shock waves from cavitation bubbles
The Journal of the Acoustical Society of America, 1999Cavitation bubbles are produced in water by focused laser light with pulse durations in the 100-fs and 10-ns range. Special attention is paid to the shock waves during breakdown and first collapse of the bubble or bubbles generated. The special focusing properties of femtosecond pulses lead to cylindrical shock waves from elongated breakdown channels ...
Werner Lauterborn +5 more
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Single-bubble large-scale cavitation
The Journal of the Acoustical Society of America, 1999Recent successes in experimental and theoretical studies of single-bubble sonoluminescence (SBSL) suggest the possibility of achieving high energy densities in the collapsed bubble. Scaling analyses and efficient ways for cavitation enhancement are discussed, with particular attention to the geometrical size of the system components and ambient ...
Vadim A. Simonenko +4 more
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Size Distribution of Cavitation Bubbles
2015Acoustic cavitation is defined as the formation of a vapor cavity and bubbles in response to an acoustic field. One can generalize this definition to encompass any observable activity involving a bubble or a population of bubbles stimulated into motion by an acoustic field (Apfel in Methods in Experimental Physics 19:355–411, 1984). There are two basic
Shanshan Xu, Xiaodong Liu, Mingxi Wan
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On bubble cavitation and dissolution
International Journal of Heat and Mass Transfer, 1983Equilibrium equations of a bubble-droplet system are derived. The stability of a bubble-droplet system is examined and it is shown that the system possesses not only a dissolution limit, known previously, but also a cavitation limit. The results support that of thermodynamic analysis which demonstrated that both limits exists for a system without a ...
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When Bubble Cavitation becomes Sonofusion
Journal of Condensed Matter Nuclear Science, 2012xperimentally, excess heat, Qx, and 4He are the measured fusion products of transient high-density sonofusion, SF. A possible path to DD fusion is explained by piezo driven cavitation bubbles, where the critical parameters are temperature, pressure, acoustic input, and frequency that control, for a picosecond, the low-energy nuclear reactions that ...
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Bubble evolution and transport in PEM water electrolysis: Mechanism, impact, and management
Progress in Energy and Combustion Science, 2023Junliang Zhang
exaly