Results 31 to 40 of about 135,816 (271)

Numerical simulation of a collapsing bubble subject to gravity [PDF]

open access: yes, 2016
© 2016 AIP Publishing LLC. The present paper focuses on the simulation of the expansion and aspherical collapse of a laser-generated bubble subjected to an acceleration field and comparison of the results with instances from high-speed videos.
Brennen C. E.   +13 more
core   +1 more source

Jet formation from bubbles near a solid boundary in a compressible liquid. Numerical study of distance dependence

open access: yes, 2020
A small, spherical bubble of high internal pressure is inserted into water at constant ambient pressure as a model of a laser-induced bubble. Its subsequent dynamics near a flat solid boundary is studied in dependence on the distance of the bubble to the
Koch, Max   +3 more
core   +2 more sources

Influence of the accommodation coefficient on nonlinear bubble oscillations [PDF]

open access: yes, 2010
This paper numerically investigates the effect of mass transfer processes on spherical single bubble dynamics using the Hertz–Langmuir–Knudsen approximation for the mass flux across the interface.
Dopazo, Cesar   +2 more
core   +1 more source

Numerical Study on Taylor Bubble Rising in Pipes

open access: yes한국해양공학회지, 2021
Slug flow is the most common multi-phase flow encountered in oil and gas industry. In this study, the hydrodynamic features of flow in pipes investigated numerically using computational fluid dynamic (CFD) simulations for the effect of slug flow on the ...
Seungchul Shin   +5 more
doaj   +1 more source

Eulerian-Lagrangian method for simulation of cloud cavitation [PDF]

open access: yes, 2017
We present a coupled Eulerian-Lagrangian method to simulate cloud cavitation in a compressible liquid. The method is designed to capture the strong, volumetric oscillations of each bubble and the bubble-scattered acoustics.
Colonius, Tim, Maeda, Kazuki
core   +3 more sources

Effects of arc bubble behaviors and characteristics on droplet transfer in underwater wet welding using in-situ imaging method

open access: yesMaterials & Design, 2019
The effects of arc bubble behaviors and characteristics on droplet transfer are observed with an in-situ X-ray imaging method. The changes in the force acting on the droplet are analyzed at three distinct stages of arc bubble in one life cycle.
Hao Chen   +5 more
doaj   +1 more source

Acoustophoretic trapping of particles by bubbles in microfluidics

open access: yesFrontiers in Physics, 2023
We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González   +3 more
doaj   +1 more source

Numerical simulation of the backscattering of pressure waves from a bubble interface

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The direct numerical simulations are conducted for the backscattering of incident pressure waves from a bubble with the ghost fluid method in order to understand the formation of secondary cavitation in the high intensity focused ultrasound (HIFU). It is
Moeko TANAKA   +2 more
doaj   +1 more source

Non-spherical collapse of an air bubble subjected to a lithotripter pulse [PDF]

open access: yes, 2008
In order to better understand the contribution of bubble collapse to stone comminution in shockwave lithotripsy, the shockinduced and Rayleigh collapse of a spherical air bubble is investigated using numerical simulations, and the free-field collapse ...
Bailey, Michael R.   +3 more
core   +1 more source

Numerical simulations of non-spherical bubble collapse [PDF]

open access: yes, 2009
A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a ...
Colonius, Tim, Johnsen, Eric
core   +1 more source

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