Results 31 to 40 of about 58,280 (299)

3D Reconstruction of a Single Bubble in Transparent Media Using Three Orthographic Digital Images

open access: yesApplied Sciences, 2020
This work proposed a method to reconstruct the 3D bubble shape in a transparent medium utilizing the three orthographic digital images. The bubble was divided into several ellipse slices.
Yiping Zhang   +3 more
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

Low-Reynolds-number gravity-driven migration and deformation of bubbles near a free surface [PDF]

open access: yes, 2011
International audienceWe investigate numerically the axisymmetric migration of bubbles toward a free surface, using a boundary-integral technique. Our careful numerical implementation allows to study the bubble(s) deformation and film drainage; it is ...
Abramowitz M.   +14 more
core   +3 more sources

Dynamic Response of Nanoscale He Bubbles in Single Crystal Al during Release from a High-Pressure State

open access: yesMetals, 2022
Previous researches have presented some knowledge about the shock loading and unloading of the nanoscale He bubble. However, the He bubble will undergo a long high-pressure adiabatic relaxation process after being shocked.
Weidong Wu, Jianli Shao
doaj   +1 more source

Bubble dynamics in time-periodic straining flows [PDF]

open access: yes, 1990
The dynamics and breakup of a bubble in an axisymmetric, time-periodic straining flow has been investigated via analysis of an approximate dynamic model and also by time-dependent numerical solutions of the full fluid mechanics problem.
Kang, I. S., Leal, L. G.
core   +1 more source

Acoustically excited interaction of gas bubbles in a liquid with centers located on a plane

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2020
The hydrodynamic interaction of weakly non-spherical gas bubbles in a liquid was made in the case of the bubbles located in the antinode of an intense ultrasonic standing wave, where the pressure varies harmonically.
A.I. Davletshin
doaj   +1 more source

Intermittency of Bubble Deformation in Turbulence

open access: yesPhysical Review Letters
The deformation of finite-sized bubbles in intense turbulence exhibits complex geometries beyond simple spheroids as the bubbles exchange energy with the surrounding eddies across a wide range of scales. This study investigates deformation via the velocity of the most stretched tip of the deformed bubble in 3D, as the tip extension results from the ...
Xu Xu   +5 more
openaire   +3 more sources

Sonoluminescence and collapse dynamics of multielectron bubbles in helium [PDF]

open access: yes, 2004
Multielectron bubbles (MEBs) differ from gas-filled bubbles in that it is the Coulomb repulsion of a nanometer thin layer of electrons that forces the bubble open rather than the pressure of an enclosed gas.
A. P. Volodin   +13 more
core   +1 more source

An elasto-visco-plastic model for immortal foams or emulsions [PDF]

open access: yes, 2007
A variety of complex fluids consist in soft, round objects (foams, emulsions, assemblies of copolymer micelles or of multilamellar vesicles -- also known as onions). Their dense packing induces a slight deviation from their prefered circular or spherical
Asipauskas   +37 more
core   +5 more sources

Deformation of an elastic cell in a uniform stream and in a circulatory flow [PDF]

open access: yes, 2013
The deformation of a circular, inextensible elastic cell is examined when the cell is placed into two different background potential flows: a uniform stream and a circulatory flow induced by a point vortex located inside the cell. In a circulatory flow a
Blyth, M. G., Parau, E. I.
core   +1 more source

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