Results 251 to 260 of about 235,420 (293)
Some of the next articles are maybe not open access.
Bubble and bubble cloud dynamics
AIP Conference Proceedings, 2000Cavitation bubbles are formed from small air bubbles, so-called nuclei, with the surrounding pressure reduction caused by the flow, and then, the bubbles shrink and collapse with the surrounding pressure rise. Such volumetric changes of bubbles are calculated in detail and it is found that they are significantly influenced by the internal phenomena ...
openaire +1 more source
The dynamics of the aspheric encapsulated bubble
The Journal of the Acoustical Society of America, 2013Based on hydrodynamics and elastic mechanics, a model is proposed for the aspheric encapsulated bubble (AEB) in liquid driven by a spherical ultrasound. The aspheric component of the bubble surfaces includes any complicated shape as a perturbation of the spherical symmetry. For example, the simple ovoid encapsulated bubble is studied numerically in the
Weihang, Shao, Weizhong, Chen
openaire +2 more sources
Dynamics of gas bubbles in monolayers
Physical Review A, 1990We present a study of the temporal evolution of a two-dimensional bubble pattern in the liquid-gas coexistence region of monolayers. Using fluorescence microscopy of pentadecanoic acid or dipalmitoyl phosphotidylcholine on the surface of water, we study the coarsening of the pattern for several days.
, Berge, , Simon, , Libchaber
openaire +2 more sources
Dynamics of bubbles in general relativity
Physical Review D, 1987This is a systematic study of the evolution of thin shell bubbles in general relativity. We develop the general thin-wall formalism first elaborated by Israel and apply it to the investigation of the motion of various bubbles arising in the course of phase transitions in the very early Universe including new phase bubbles, old phase remnants, and ...
, Berezin, , Kuzmin, , Tkachev
openaire +2 more sources
Dynamics of two-dimensional bubbles
Physical Review E, 2015The dynamics of two-dimensional bubbles ascending under the influence of buoyant forces is numerically studied with a one-fluid model coupled with the front-tracking technique. The bubble dynamics are described by recording the position, shape, and orientation of the bubbles as functions of time.
Saúl, Piedra +2 more
openaire +2 more sources
Bubble dynamics and spontaneous compactification
Physical Review D, 1989As a laboratory for studying dimensional reduction in inhomogeneous spacetimes, we consider several five-dimensional models in which a bubble of a spacetime with a small compact dimension is sewn to a spacetime with all five dimensions macroscopic. Obliging the five-dimensional metric to be well behaved at the domain boundary constrains the parameters ...
, Blau, , Guendelman
openaire +2 more sources
Nonlinear bubble dynamics of cavitation
The Journal of the Acoustical Society of America, 2012A theoretical framework for studying cavitation dynamics is revived. It consists of a nonlinear sound wave equation in an acoustic cavitation environment together with the bubble motion equation. The nonlinear sound wave equation considers time delayed bubble-bubble interaction.
openaire +2 more sources
Dynamics of bubble-bubble interactions experiencing viscoelastic drag
Physical Review E, 2019The subject of the present theoretical study is the dynamics of bubble-bubble interactions in a viscoelastic medium. First, new equations for calculating the viscoelastic drag exerted on bubbles during their translational motion in a viscoelastic medium are derived.
Ekaterina, Zilonova +2 more
openaire +2 more sources
Bubble dynamics investigation in a slurry bubble column
AIChE Journal, 2008AbstractThe application of four‐point optical probe has been for the first time extended to a slurry system in a 10.2‐cm ID column. Bubble dynamics (local gas holdup, bubble chord length, bubble velocity, bubble frequency, and specific interfacial area) were investigated using an air–water‐catalyst system under atmospheric pressure. With an increase in
Chengtian Wu +2 more
openaire +1 more source
Bubble Dynamics for Explosive Microthermal Dual Bubbles
Journal of Microelectromechanical Systems, 2007Bubble dynamics of explosive microthermal dual bubbles including the growth and collapse process are investigated experimentally in detail. The dual bubbles are generated with supplied heat flux of 1.61 GW/m2 on two 30 times 60 mum2 heaters. The heaters are separated by different distances ranging from 25 to 125 mum.
I-Da Yang +3 more
openaire +1 more source