Results 41 to 50 of about 233,135 (199)

A new model for bubble cluster dynamics in a viscoelastic media

Ultrasonics Sonochemistry
Bubble cluster dynamics in viscoelastic media is instructive for ultrasound diagnosis and therapy. In this paper, we propose a statistical model for bubble cluster dynamics in viscoelastic media considering the radius distribution of bubble nuclei.
Xiaozhuo Shen, Pengfei Wu, Weijun Lin
doaj   +1 more source

Gravitational waves from bubble dynamics: Beyond the Envelope

, 2019
We study gravitational-wave production from bubble dynamics (bubble collisions and sound waves) during a cosmic first-order phase transition with an analytic approach.
Jinno, Ryusuke, Takimoto, Masahiro
core   +1 more source

Bubble dynamics in time-periodic straining flows [PDF]

, 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

Three-dimensional Modeling of the Interaction of a Bubble pair with a Rigid Wall using Boundary Integral Method

Zanco Journal of Pure and Applied Sciences
This study examines the three-dimensional dynamics of two gas bubbles near a horizontal rigid wall, focusing on how inter-bubble distance affects their shape, size, and jet formation.
Imad A. Aziz
doaj   +1 more source

Gas Bubble Dynamics During Methane Hydrate Formation and its Influence on Geophysical Properties of Sediment Using High-Resolution Synchrotron Imaging and Rock Physics Modeling

Frontiers in Earth Science, 2022
Gas bubble in aquatic sediments has a significant effect on its geophysical and geomechanical properties. Recent studies have shown that methane gas and hydrate can coexist in gas hydrate–bearing sediments.
B. N. Madhusudhan, S. K. Sahoo, F. Alvarez-Borges, F. Alvarez-Borges, S. Ahmed, L. J. North, A. I. Best   +6 more
doaj   +1 more source

Looking into DNA breathing dynamics via quantum physics

, 2009
We study generic aspects of bubble dynamics in DNA under time dependent perturbations, for example temperature change, by mapping the associated Fokker-Planck equation to a quantum time-dependent Schroedinger equation with imaginary time.
A. Bohr, D. Bohm, D. Poland, Dvira Segal, Lian-Ao Wu, Stephen S. Wu   +5 more
core   +1 more source

Sonochemistry and bubble dynamics

Ultrasonics Sonochemistry, 2015
The details of bubble behaviour in chemically active cavitation are still not sufficiently well understood. Here we report on experimental high-speed observations of acoustically driven single-bubble and few-bubble systems with the aim of clarification of the connection of their dynamics with chemical activity.
Mettin R, Cairós C, TROIA, ADRIANO
openaire   +3 more sources

Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process

Ultrasonics Sonochemistry
We experimentally, numerically, and theoretically investigate the dynamics of cavitation bubbles in viscous liquids in a tube during a transient process.
Zhichao Wang, Peng Xu, Zibo Ren, Liufang Yu, Zhigang Zuo, Shuhong Liu   +5 more
doaj   +1 more source

Mechanism study of bubble dynamics under the buoyancy effects

Nuclear Analysis, 2023
The motion of a single bubble in a 2-D vertical channel filled with stagnant or moving fluid is simulated for various sets of conditions using the computational fluid dynamics(CFD) method. The volume of fluid (VOF) model is applied to track the interface
Shan-fang Huang
doaj   +1 more source

Pulsars and bubble dynamics [PDF]

International Astronomical Union Colloquium, 1997
AbstractBased on recent observation of the dominance of the flare generated solar wind streams over the co-rotating streams and a significant lowering in the cosmic ray intensity in the abnormal year of the solar activity period, I have predicted the occurrence of discernible changes in magnetic field strength and the thickness of the shell of the ...
openaire   +1 more source