Results 31 to 40 of about 8,020 (214)
Ultrasonics Sonochemistry, 2021 Cavitation damage is a micro, high-speed, multi-phase complex phenomenon caused by the near-wall bubble group collapse. The current numerical simulation method of cavitation mainly focuses on the collapse impact of a single cavitation bubble.
Xiang Lu +4 more
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Radial oscillation and translational motion of a gas bubble in a micro-cavity
Ultrasonics Sonochemistry, 2022 According to classical nucleation theory, a gas nucleus can grow into a cavitation bubble when the ambient pressure is negative. Here, the growth process of a gas nucleus in a micro-cavity was simplified to two “events”, and the full confinement effect ...
Xianmei Zhang +8 more
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Acta Physica Sinica, 2023 In this work, the interaction among multiple bubbles in a cavitation field is investigated by combining the experimental observation of small bubbles hovering around large bubbles. A model composed of three bubbles is developed, and the dynamic behavior of cavitation bubble is analyzed.
Chen-Yang Huang +7 more
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Shockwaves from air bubbles within pits induced by nearby cavitation bubbles
Ultrasonics SonochemistryThe cavitation intensity in near-boundary regions was significantly affected by the smoothness of boundaries. Micro pits on these boundaries may harbor smaller air bubbles or gas nuclei, and cavitation bubbles within cavitation clouds or cavitation ...
Jie Li +5 more
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Sterilization of Biofilm in Foam Using a Single Cavitation Bubble [PDF]
MATEC Web of Conferences, 2020 This article presents the sterilization of bacteria using cavitation bubbles. Cavitation generated by ultrasound creates a cavitation cloud. Therefore is more advantageous to generate the cavitation bubbles by laser-induced breakdown, because it is ...
Schovanec Petr +7 more
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Nonspherical laser-induced cavitation bubbles [PDF]
Physical Review E, 2010 The generation of arbitrarily shaped nonspherical laser-induced cavitation bubbles is demonstrated with a optical technique. The nonspherical bubbles are formed using laser intensity patterns shaped by a spatial light modulator using linear absorption inside a liquid gap with a thickness of 40 microm.
Lim, K.Y. +5 more
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The dynamics of cavitation bubbles in a sealed vessel
Ultrasonics Sonochemistry, 2022 A model of cavitation bubbles is derived in liquid confined in an elastic sealed vessel driven by ultrasound. In this model, an assumption that the pressure acting on the sealed vessel due to bubble pulsations is proportional to total volume change of bubbles is made. Numerical simulations are carried out for a single bubble and for bubbles.
Yang Shen +5 more
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Impact-driven cavitation bubble dynamics
Experiments in Fluids, 2022 Abstract The dynamics of a single cavitation bubble exposed to a transient acceleration is studied experimentally. A single cavitation bubble is seeded with a pulsed laser in a free-falling and impacting water-filled test tube. After impact, a pressure wave containing compression and rarefaction phases is generated and interacts with ...
Hengzhu Bao +4 more
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The Dynamics of Cavitation Bubbles [PDF]
Journal of Applied Mechanics, 1949 Abstract Three regimes of liquid flow over a body are defined, namely: (a) noncavitating flow; (b) cavitating flow with a relatively small number of cavitation bubbles in the field of flow; and (c) cavitating flow with a single large cavity about the body.
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Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
wiley +1 more source