Results 11 to 20 of about 7,237 (288)
A numerical model for cloud cavitation based on bubble cluster [PDF]
Theoretical and Applied Mechanics Letters, 2017 The cavitation cloud of different internal structures results in different collapse pressures owing to the interaction among bubbles. The internal structure of cloud cavitation is required to accurately predict collapse pressure.
Tezhuan Du +3 more
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Cavitation Bubble Cloud Break-Off Mechanisms at Micro-Channels [PDF]
Fluids, 2021 This paper provides new physical insight into the coupling between flow dynamics and cavitation bubble cloud behaviour at conditions relevant to both cavitation inception and the more complex phenomenon of flow “choking” using a multiphase compressible ...
Paul McGinn +4 more
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Bubble Trails, Bursts, Rings, and More: A Review of Multiple Bubble Types Produced by Cetaceans [PDF]
Animal Behavior and Cognition, 2019 Reports of cetacean bubble production spanning several decades have begun to document occurrences and possible functions of this unique behavior. These observations can be grouped by their physical features into three main categories: bubble trails ...
Kelsey R. Moreno , Riley P. Macgregor
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Bubble cloud characteristics and ablation efficiency in dual-frequency intrinsic threshold histotripsy. [PDF]
Phys Med Biol, 2023 Histotripsy is a non-thermal focused ultrasound ablation method that destroys tissue through the generation and activity of acoustic cavitation. Intrinsic threshold histotripsy generates bubble clouds when the dominant negative pressure phase of a single-
Edsall C +3 more
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Histotripsy Bubble Cloud Contrast With Chirp-Coded Excitation in Preclinical Models. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2022 Histotripsy is a focused ultrasound therapy for tissue ablation via the generation of bubble clouds. These effects can be achieved noninvasively, making sensitive and specific bubble imaging essential for histotripsy guidance.
Wallach EL +4 more
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Synchrotron X-ray imaging of the onset of ultrasonic horn cavitation
Ultrasonics Sonochemistry, 2023 High-power ultrasonic horns operating at low frequency are known to generate a cone-shaped cavitation bubble cloud beneath them. The exact physical processes resulting in the conical structure are still unclear mainly due to challenges associated with ...
Luc Biasiori-Poulanges +4 more
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A new cavitation model considering inter-bubble action
International Journal of Naval Architecture and Ocean Engineering, 2021 The process of cavitation involves generation, growth, coalescence, and collapse of small bubbles and is tremendously influenced by bubble–bubble interactions.
Yazhen Shi +4 more
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On the thermodynamic behaviors and interactions between bubble pairs: A numerical approach
Ultrasonics Sonochemistry, 2021 Thermodynamic behaviors and interactions between bubble pairs are important to better understand the cavitation phenomena. In this study, a compressible two-phase model, accounting for thermal effects to investigate the thermodynamic behaviors and ...
Jianyong Yin +4 more
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Nonlinear effects in the dynamics of clouds of bubbles [PDF]
The Journal of the Acoustical Society of America, 1991 This paper presents a spectral analysis of the response of a fluid containing bubbles to the motions of a wall oscillating normal to itself. First, a Fourier analysis of the Rayleigh-Plesset equation is used to obtain an approximate solution for the nonlinear effects in the oscillation of a single bubble in an infinite fluid.
S, Kumar, C E, Brennen
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Linearized dynamics of spherical bubble clouds [PDF]
Journal of Fluid Mechanics, 1989 The present work investigates the dynamics of the one-dimensional, unsteady flow of a spherical bubble cloud subject to harmonic far-field pressure excitation. Bubble dynamics effects and energy dissipation due to viscosity, heat transfer, liquid compressibility and relative motion of the two phases are included. The equations of motion for the average
D'AGOSTINO, LUCA, BRENNEN C. E.
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