Results 21 to 30 of about 57,276 (263)

Gas Bubble Evolution in Polycrystalline UMo Fuels Under Elastic-Plastic Deformation: A Phase-Field Model With Crystal-Plasticity

open access: yesFrontiers in Materials, 2021
In monolithic UMo fuels, the interaction between the Al cladding and large gas bubble volumetric swelling causes both elastic-plastic and creep deformation.
Shenyang Hu   +2 more
doaj   +1 more source

A derivation of the stable cavitation threshold accounting for bubble-bubble interactions

open access: yesUltrasonics Sonochemistry, 2017
The subharmonic emission of sound coming from the nonlinear response of a bubble population is the most used indicator for stable cavitation. When driven at twice their resonance frequency, bubbles can exhibit subharmonic spherical oscillations if the acoustic pressure amplitude exceeds a threshold value.
Matthieu, Guédra   +2 more
openaire   +2 more sources

Fluid–structure interactions between a near-field underwater explosion bubble and a suspended plate

open access: yesAIP Advances, 2022
During near-field underwater explosions, the structural response induced by the shock wave and bubble load significantly affects the bubble collapse and jet characteristics.
Shi-Yu Tong   +3 more
doaj   +1 more source

Bubble-bubble interaction: A potential source of cavitation noise

open access: yesPhysical Review E, 2009
The interaction between microbubbles through pressure pulses has been studied to show that it can be a source of cavitation noise. A recent report demonstrated that the acoustic noise generated by a shrimp originates from the collapse of a cavitation bubble produced when the shrimp closes its snapper claw.
openaire   +3 more sources

Strong interactions bubble/bubble and bubble/flow [PDF]

open access: yes, 1994
The study of bubble dynamics in non-uniform flow fields is fundamental to the ability to predict or explain any cavitation effects in real flow fields. In this presentation we describe our recent contributions towards the fundamental understanding of bubble dynamics in non-uniform flow fields when large bubble deformations and bubble interactions are ...
openaire   +1 more source

Wall effect on interaction and coalescence of two bubbles in a vertical tube

open access: yesAIP Advances, 2020
While most studies on bubble dynamics are carried out in unconfined geometries, less attention has been paid to investigate confined bubbles and wall effects.
Yuteng Gui   +3 more
doaj   +1 more source

Three-Dimensional Image Measurement of Bubble-Bubble Interaction

open access: yesJournal of the Visualization Society of Japan, 2004
This paper concerns with experimental measurement of bubble-bubble interaction in a free-rising bubbly flow using three-dimensional Particle Tracking Velocimetry (3-D PTV). An accurate labeling method is employed to measure correctly the center of gravity for individual bubble so that the relative velocity vector in a swarm of bubbles is captured with ...
MURAI, Yuichi   +2 more
openaire   +2 more sources

Effect of direct bubble-bubble interactions on linear-wave propagation in bubbly liquids [PDF]

open access: yesPhysical Review E, 2014
We study the influence of bubble-bubble interactions on the propagation of linear acoustic waves in bubbly liquids. Using the full model proposed by Fuster and Colonius [J. Fluid Mech. 688, 253 (2011)], numerical simulations reveal that direct bubble-bubble interactions have an appreciable effect for frequencies above the natural resonance frequency of
Fuster, Daniel   +2 more
openaire   +4 more sources

Bubble Sweep-Down of Research Vessels Based on the Coupled Eulerian-Lagrangian Method

open access: yesJournal of Marine Science and Engineering, 2020
To explore the reason for the bubble sweep-down phenomenon of research vessels and its effect on the position of the stern sonar of a research vessel, the use of a fairing was investigated as a defoaming appendage.
Wei Wang   +5 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

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