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Mechanics of Collapsing Cavitation Bubbles [PDF]

open access: yesUltrasonics Sonochemistry, 2016
A brief survey is given of the dynamical phenomena accompanying the collapse of cavitation bubbles. The discussion includes shock waves, microjets and the various ways in which collapsing bubbles produce damage.
Leen van Wijngaarden
exaly   +6 more sources

Cavitation Bubble Dynamics

open access: yesUltrasonics Sonochemistry, 1997
The dynamics of cavitation bubbles on water is investigated for bubbles produced optically and acoustically. Single bubble dynamics is studied with laser produced bubbles and high speed photography with framing rates up to 20.8 million frames per second. Examples for jet formation and shock wave emission are given.
Claus-Dieter Ohl, Werner Lauterborn
exaly   +3 more sources

Nonlinear dynamics and acoustic emissions of interacting cavitation bubbles in viscoelastic tissues

open access: yesUltrasonics Sonochemistry, 2021
The cavitation-mediated bioeffects are primarily associated with the dynamic behaviors of bubbles in viscoelastic tissues, which involves complex interactions of cavitation bubbles with surrounding bubbles and tissues.
Dui Qin   +4 more
doaj   +3 more sources

The Characterization of Acoustic Cavitation Bubbles – An Overview

open access: yesUltrasonics Sonochemistry, 2011
Acoustic cavitation, in simple terms, is the growth and collapse of preexisting microbubbles under the influence of an ultrasonic field in liquids. The cavitation bubbles can be characterized by the dynamics of oscillations and the maximum temperatures and pressures reached when they collapse.
Muthupandian Ashokkumar
exaly   +3 more sources

Influence of interactions between bubbles on physico-chemical effects of acoustic cavitation

open access: yesUltrasonics Sonochemistry
Ultrasound technology has been extensively used as one of the efficient and economic methodology to achieve the desired outcomes in many applications by harnessing the physico-chemical effects of acoustic cavitation.
Dui Qin   +6 more
doaj   +3 more sources

Study on Unsteady Cavitation Flow and Pressure Pulsation Characteristics in the Regulating Valve

open access: yesShock and Vibration, 2021
A combined numerical-experiment investigation on the unsteady cavitation flow and pressure fluctuation characteristics in the regulating valves is conducted in this paper. The cavitation flow in the regulating valve is an unsteady and periodic flow which
Liu Xiumei   +6 more
doaj   +1 more source

Surface tension of cavitation bubbles

open access: yesProceedings of the National Academy of Sciences, 2023
We have studied homogeneous cavitation in liquid nitrogen and normal liquid helium. We monitor the fluid content in a large number of independent mesopores with an ink-bottle shape, either when the fluid in the pores is quenched to a constant pressure or submitted to a pressure decreasing at a controlled rate.
Marine Bossert   +7 more
openaire   +5 more sources

On the gas pressure inside cavitation bubbles

open access: yesPhysics of Fluids, 2023
The validity of the reduced order [Delale and Pasinlioglu, “Acoustic cavitation model based on a novel reduced order gas pressure law,” AIP Adv. 11, 115309 (2021)] and of classical polytropic gas pressure laws during the response of a bubble to variations in the pressure of the surrounding liquid is investigated.
Can F. Delale, Şenay Pasinlioğlu
openaire   +3 more sources

Study on the Collapse Process of Cavitation Bubbles Near the Concave Wall by Lattice Boltzmann Method Pseudo-Potential Model

open access: yesEnergies, 2020
In this paper, the lattice Boltzmann pseudo-potential model coupled the Carnahan–Starling (C-S) equation of state and Li’s force scheme are used to study the collapse process of cavitation bubbles near the concave wall.
Yang Liu, Yong Peng
doaj   +1 more source

Effects of medium viscoelasticity on bubble collapse strength of interacting polydisperse bubbles

open access: yesUltrasonics Sonochemistry, 2023
Due to its physical and/or chemical effects, acoustic cavitation plays a crucial role in various emerging applications ranging from advanced materials to biomedicine. The cavitation bubbles usually undergo oscillatory dynamics and violent collapse within
Dui Qin   +4 more
doaj   +1 more source

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