Results 31 to 40 of about 28,654 (256)
Journal of Fluid Science and Technology, 2010 We developed a numerical simulation code and a method of estimation for predicting the cavitation erosion in pumps. Cavitation erosion is closely related to cavitation intensity based on bubble dynamics.
Masashi FUKAYA +2 more
doaj +1 more source
Research on the Cavitation Flow Characteristics and Transport Mechanism of Rotating Cascades [PDF]
Journal of Applied Fluid MechanicsIn this study, a numerical simulation combining the Detached Eddy Simulation (DES) model with the Zwart Gerber Belamari (Z-G-B) cavitation model is used, along with a visualization experiment, to analyze cavitation flow within a rotating cascade.
Y. Y. Wang, W. G. Zhao, X. D. Han
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Cavitation Nuclei Population and Event Rates [PDF]
, 1998 To model the processes of cavitation inception, noise and damage, it is necessary to generate a model of the cavitation event rate which can then be coupled with the consequences of the individual events to produce a complete synthesis of the phenomenon.
Brennen, Christopher E., Liu, Zhenhuan
core +1 more source
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
doaj +1 more source
Single-bubble and multi-bubble cavitation in water triggered by laser-driven focusing shock waves
, 2018 In this study a single laser pulse spatially shaped into a ring is focused into a thin water layer, creating an annular cavitation bubble and cylindrical shock waves: an outer shock that diverges away from the excitation laser ring and an inner shock ...
De Colle, F. +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
openaire +4 more sources
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
openaire +3 more sources
Observations and scaling of travelling bubble cavitation [PDF]
, 1995 Recent observations of growing and collapsing bubbles in flows over axisymmetric headforms have revealed the complexity of the ‘micro-fluid-mechanics’ associated with these bubbles (van der Meulen & van Renesse 1989; Briancon-Marjollet et al.
Brennen, C. E. +2 more
core +1 more source