Results 21 to 30 of about 187,035 (226)

Numerical Study of the Pulsation Process of Spark Bubbles under Three Boundary Conditions

open access: yesJournal of Marine Science and Engineering, 2021
In this study, a compressible three-phase homogeneous model was established using ABAQUS/Explicit. These models can numerically simulate the pulsation process of cavitation bubbles in the free field, near the flat plate target, and near the curved ...
Chunlong Ma   +5 more
doaj   +1 more source

The collapse of single bubbles and approximation of the far-field acoustic emissions for cavitation induced by shock wave lithotripsy [PDF]

open access: yes, 2011
Recent clinical trials have shown the efficacy of a passive acoustic device used during shock wave lithotripsy (SWL) treatment. The device uses the far-field acoustic emissions resulting from the interaction of the therapeutic shock waves with the tissue
Turangan, C.K.   +7 more
core   +1 more source

Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model

open access: yesJournal 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

Effects of Polydispersity in Bubbly Flows [PDF]

open access: yes, 2010
This thesis concerns the dynamics of bubbly flows with a distribution of equilibrium bubble sizes. The main goal is to formulate the physical and numerical models of continuum bubbly flows that enable us to efficiently compute the average mixture ...
Ando, Keita
core   +1 more source

Numerical Investigations on Temperature Distribution and Evolution of Cavitation Bubble Collapsed Near Solid Wall

open access: yesFrontiers in Energy Research, 2022
The internal temperature distribution and evolution in cavitation bubble can be investigated numerically by a thermal lattice Boltzmann method. The simulation results are consistent with the calculational results of the Rayleigh-Plesset equation and the ...
Minglei Shan   +5 more
doaj   +1 more source

Modelling of the cavitation bubbles dynamics [PDF]

open access: yes, 2021
The goal of this study is to apply a numerical model for cavitation bubble dynamics that is based on the existing Rayleigh-Plesset equation (RPE). Physical background and derivation of the RPE are given, as well as the basic phenomena associated with ...
Elezović, Merim
core  

Laser Induced Breakdown and Bubble Cavitation [PDF]

open access: yes, 2018
This work presents the results of an experimental investigation of laser induced cavitation. We find that the breakdown plasma can be randomly split in different branches depending on the laser energy and on the focusing angle.
Francisco Alves Pereira   +6 more
core   +1 more source

Research on the Cavitation Flow Characteristics and Transport Mechanism of Rotating Cascades [PDF]

open access: yesJournal of Applied Fluid Mechanics
In 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

An equivalent method of jet impact loading from collapsing near-wall acoustic bubbles: A preliminary study

open access: yesUltrasonics 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

open access: yesUltrasonics 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

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