Journal ArticleDOI
Damping Constants of Pulsating Bubbles
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TLDR
In this article, the damping constants of resonant bubbles are extended to the off-resonance case and it is shown that thermal damping is important for bubbles driven below resonance, and radiation damping for those above resonance.Abstract:
Results obtained by Devin [J. Acoust. Soc. Amer. 31, 1654–1667 (1959)] for the damping constants of resonant bubbles are extended to the off‐resonance case. Calculated results show for the range of conditions considered that thermal damping is important for bubbles driven below resonance, and radiation damping is important for those above resonance.read more
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The release of air bubbles from an underwater nozzle
TL;DR: In this paper, the authors calculate theoretically the sequence of bubble shapes from a given underwater nozzle and show that there is for each nozzle a bubble of maximum volume vmax assuming that the bubble becomes detached at its neck, and that the volume of the detached bubble equals the volume V* of the undetached bubble above its neck.
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A model for the dynamics of gas bubbles in soft tissue
Xinmai Yang,Charles C. Church +1 more
TL;DR: The Keller-Miksis equation is rederived and combined with a viscoelastic model to account for the strain-stress relation and the results show that the presence of the elasticity increases the threshold pressure for a bubble to oscillate inertially, and subharmonic signals may only be detectable in certain ranges of radius and pressure amplitude.
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Acoustic cavitation series: part five rectified diffusion
TL;DR: In this article, a general review of the mechanism of rectified diffusion is given, and the equations that describe the threshold acoustic pressure amplitude as well as the growth rate are presented.
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Review of scattering and extinction cross-sections, damping factors, and resonance frequencies of a spherical gas bubble.
TL;DR: This paper reviews expressions and definitions in the literature for acoustical cross-sections, resonance frequencies, and damping factors of a spherically pulsating gas bubble in an infinite liquid medium, deriving two expressions for "resonance frequency" that are compared and reconciled with two others from the reviewed literature.
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Review of shell models for contrast agent microbubbles
TL;DR: In this review, existing approaches to the modeling of the radial motion of an encapsulated bubble are discussed and comparative analysis of available shell models is conducted and nonlinear models have been proposed that allow one to reproduce compression-only behavior.